Material Properties Check the entered material properties to make sure they are acceptable. d) Stress along any one direction is zero Answer: b Study with Quizlet and memorize flashcards containing terms like 7-1 AMA037 The strength and stiffness of a properly constructed composite buildup depends primarily on A. the orientation of the plies to the load direction. b) Non uniform 9. a) One dimension is very small compared to the other two dimensions (9) can he used to calculate the geometric stiffness matrix, K . Material stiffness is a measure of how much of a load it takes to cause elastic deformation in the material and is numerically represented by Young's modulus (aka the modulus of elasticity). eliminate corrosion. 7-21 AMA037 Your internet explorer is in compatibility mode and may not be displaying the website correctly. d) --Co-ordinates Answer: a Here NBW=____ The loading on an element includes _______ Explanation: Poissons ratio is the ratio of transverse contraction strain to longitudinal extension strain in the direction of stretching force. Discretization includes both node and element numbering, in this model every element connects two nodes. d) 7.50*106psi is a 65 -year-old man who was referred to the urology clinic by his primary care provider because of a PSA level of 11.9 ng/mL (11.9 mcg/L). to use For the given modeling parameters, kyy = 4107 N/m and kzz = 1107 N/m. 1. As I mentioned previously, all shapes will have a different formula for area MOI. Answer: d c) 7 a) Entire body b) Low traction force Linear combination of these shape functions represents a ______ This is why plastic coat hangers have a larger diameter (cross-sectional area) than metal hangers. C, the element stiffness equations are 1 11 1 12 2 13 3 14 4 15 5 16 6 f1 where N i represents the ith shape function. Example for plane stress problem is Strip footing resting on soil mass a thin plate loaded in a plane a long cylinder a gravity dam Show Answer 3. c) Six degrees of freedom 17. with transparent plastics? d) Trussky program d) Cannot be determined C. crazing. When symmetry is assumed about the mid plane, this plane is restrained in the _____ Explanation: A shaft is a rotating machine element, usually circular in cross section, which is used to transmit power from one part to another, or from a machine which produces power to a machine which absorbs power. Stiffness of a component is a function of both material and geometry. A. water jet cutter. d) Element equation 12. d) Surface co-ordinates d) Program CG SOLVING equations Answer: c b) Nodes There are other methods for determining part stiffness, area MOI, and deflection an FEA study is the first that comes to mind. The first step of this approach is to add a large number to the diagonal elements. a) =D(-0) C. Beads left by polymerizable cements are readily [citation needed] This is of significance to patients with traumatic injuries to the skin, whereby the pliability can be reduced due to the formation and replacement of healthy skin tissue by a pathological scar. Third step is to evaluate reaction force at each point. If were looking at square or rectangular bars, the dimensions of concern are different we need to know the base, the height, and the length of the feature. It is based on the relative motion of the object. a) Load vector There was 1175mL1175 \mathrm{~mL}1175mL left in the bag 8 hours. b) Nodal displacement Explanation: Stiffness matrix represents system of linear equations that must be solved in order to ascertain an approximate solution to the differential equation. #3. a) Programming equations The overall concept of leveraging geometric relationships to increase stiffness in this manner is pretty simple, but the formulas can appear daunting. a) 9 The points where triangular elements meet are called ____ A nonlinear analysis is an analysis where a nonlinear relation holds between applied forces and displacements. c) N3=1- Answer: d c) Iterative function It is denoted by symbol . Corner of each element is called a node. 3 Here, E is the elastic modulus of the spring material, I is the area moment of inertia of the beam cross section, and L is the length of the beam. Answer: b b) Precision and accuracy They show you these matrices, they attach some physical meaning, and in my opinion this leads you to developing a dubious physical intuition for the field. A. water from between the laminations. I suggest you to refer the following book: The Finite Element Method Using MATLAM : Hyochoong Bang (Author), Young W. Kwon (Author) Refer the book..Book discusses basics of FEM with MATLAB Code. In the XYZ Cartesian system, all the strain components except yzand zxare non-zero. Production-grade steel tooling, as fast as 2 weeks. c) Periphery of the circle d) Loads Answer: d Answer: a Is there any spatial inhomogeneity in the applied force? 10 Stiffness matrix depends on [ C ] [A] material [B] geometry [C] both [D] none 11 The sub domains are called as [ C ] [A] particles [B] molecules [C] elements [D] None 12 If any element is specified by the polynomial of the order of two or more, the element is known [ B ] as [A] non linear element [B] higher order element [C] both A&B [D] none a) Triangular co-ordinates Answer: b Explanation: The shape function is function which interpolates the solution between discrete values obtained at the mesh nodes. c) Kinetic energy a) Square surface What is the magnitude of the force at node 22 if the moment M is replaced by an equivalent distributed force at x=acm? Which is not a step to ensure proper bonding of a composite b) Considered matrix must be used to describe the stiffness at the point. Prepare For Your Placements:https://lastmomenttuitions.com/courses/placement-preparation/, / Youtube Channel:https://www.youtube.com/channel/UCGFNZxMqKLsqWERX_N2f08Q. a) Element displacement vector Further measures of stiffness are derived on a similar basis, including: The elastic modulus of a material is not the same as the stiffness of a component made from that material. Here B is element strain displacement matrix. You can also use our Area Moment of Inertia Calculator that allows you to play with these geometries to get a better feel for the impact of shape and size changes. Hence, we can express the axial stiffness of the beam for this 0D model with the following equation: Assuming the Youngs modulus of steel is 200 GPa, we find that the axial stiffness of the beam is k = 4109 N/m. Another application of stiffness finds itself in skin biology. An element is a mathematical relation that defines how the degrees of freedom of node relate to next. 458 0 obj <> endobj Use of quadratic interpolation leads to more accurate results. Combining all of this, we get u(x)=\frac{Fx}{EA}, where x is the distance from the fixed end of the beam and u(x) is the displacement along the length of the beam. Explanation: Aspect ratio is defined as ratio of maximum to minimum characteristics dimensions. The element stiffness matrix for the 2D beam element mentioned earlier is shown below. 16. a) Isotropic b) Orthotropic material The points at where kinetic energy increases dramatically then those points are called _______ d) Unique points Hence, the deformation or displacement (u) is not the same at each cross section along the length. For 1-D bar elements if the structure is having 3 nodes then the stiffness matrix formed is How is Assembly of stiffness matrix symbolically denoted? d) Horizontal axis. c) Matrix form A. cure the film adhesive material at 250 degrees F. 23. Answer: a In the equation KQ=F, K is called as ____ By Hookes law, stress is ______ Explanation: From nodal displacement equation we can write that isoparametric equation as c) Force vector 29. When rivets or nuts and bolts are used, slotted holes c) Adjoining matrix. A. thermoset. In case of a truss member if there are 3 nodes and each node 2 DOF, then the order of Stiffness matrix is [A] 2x2 [B] 3x3 [C] 2x3 [D] 6x6 The truss element can deform only in the . a) Uniformly x2x1 Specifically, denser PVA nanofibers lead to higher sensitivity. Answer: c 7. In dividing the elements a good practice may be to choose corner angles in the range of ____ IT Engineering Year Of Engineering In temperature effect of FEM, Initial strain 0= T. Here, we will show you how to use the Beam interface in the 3D space dimension to compute both the axial and the bending stiffness. Shape functions are interpolation functions. Explanation: A degrees of freedom may be defined as, the number of parameters of system that may vary independently. Thus, xx0, yy0, zz0, xy0, where as yz=0 and zx=0. c) Elements It is acted upon by external loads lying in the xy plane (or parallel to it) that are independent of the Z coordinate. b) Multiple constraints How many nodes are there in a hexahedron element? Explanation: The traditional view is still used in elementary treatments of geometry, but the advanced mathematical viewpoint has shifted to the infinite curvilinear surface and this is how a cylinder is now defined in various modern branches of geometry and topology. Material Geometry both material and geometry none of the above Answer: both material and geometry For 1-D bar elements if the structure is having 3 nodes then the 13. stiffness matrix formed is having an order of 2*2 3*3 4*4 6*6 Answer: 3*3 When thin plate is subjected to loading in its own plane only, b) Traction force C. analyze ultrasonic signals transmitted into the parts Answer: c This resistance is referred to as stiffness. The other end is supported by roller and hinge support. Which is the correct option for the following equation? Finite element method uses the concept of shape functions in systematically developing the interpolations. Continuum is discretized into_______ elements. 7-30 AMA037 c) zx=0 d) Integer A 1D representation of the beam, obtained using the balance of bending moment in the body. The stiffness of the spring is defined as, (2) Tight tolerances and finishing capabilities, as fast as 2 days. c) Circularly (i.e. N The approach shown here for evaluating the stiffness components is applicable as long as we do not expect any coupling between extension and bending, (i.e., when the stiffness matrix is diagonal). a) Surface Health problems resulting from composite repair processes Explanation: By elimination approach method we can construct a global stiffness matrix by load and force acting on the structure or an element. Explanation: =Bq Answer: b The best way to understand which moment of inertia to consider is to think about applying a load around which axis will the bar rotate or wrap? The equation u=Nq is a _____ representation. Explanation: Boundary condition means a condition which a quantity that varies through out a given space or enclosure must be fulfill at every point on the boundary of that space. Therefore, Equilibrium conditions are obtained by minimizing Potential energy. Coarse mesh is more accurate in getting values. Answer: a The prostate is slightly tender on examination. b)M X N, where M is no of rows and N is no of columns Answer: d Explanation: NBW means half bandwidth. In this case, u would be maximum at x = L where its value would be u_{max}=FL/EA. Answer: b made on damages less than a) Tangentially In particular, N1+N2+N3represents a plane height of one at nodes one, two, and, three and thus it is parallel to the triangle 123. Answer: d 36. Explanation: A unidirectional (UD) fabric is one in which the majority of fibers run in one direction only. Then these shape functions are called ____ Size of global stiffness matrix=No. c) Vertical stress load b) Strain and stress Explanation: In penalty approach method a1is known as specified displacement of 1. The devel- opment of the stiffness matrix proceeds in a straightfor- Explanation: For a global stiffness matrix, a structural system is an assemblage of number of elements. d) Load A. This global load vector is get from assembling of both element force vectors and point loads. If the setup is Displacement-Controlled: c) Strain along any one direction is zero b) Skew symmetric matrix. 2. b) Large deformations in linear elastic solids d) D*+f=u 26. d) A1 b) Rayleigh method Now, lets jump over to an FEA study that looks at our 2.0 OD by 1.5 ID cantilever tube and compare the result, as shown below. a) T a) 1616 Again, this is very close to our 170% difference in the spreadsheet calculations. d) Identically Today, stiffness usually refers to the finite element stiffness matrix, which can include all of the above stiffness terms plus general solid or shell . Potential energy, = _________ d) Minimum potential energy theorem c) Non linear 7-43 AMA078 materials have been cleaned, their surfaces should be Answer: d For example, lets look at a boss with gussets (below) similar to what I described in a previous article. Answer: c That is normal to principal material axes. c) The final velocity 7-31 AMA037 b) Degrees of freedom geometry/distribution, and properties of the con-stituent phases, it is possible to design materials with property combinations that are better than those found in the metal alloys, ceramics, and polymeric materials. 7-42 AMA078 As expected, this would yield the exact same result for the axial stiffness (kxx = 4109 N/m), but the transverse stiffness will be smaller than what we obtained from the Euler-Bernoulli theory. = Deflection P = The Force Applied at the End L = The length of the Rod E = Elastic Modulus I = Area Moment of Inertia (MOI) Answer: c The points where the corners of the triangles meet are called nodes. 10. Explanation: By penalty approach we can derive boundary conditions of an element or a structure. c) Thermal expansion We use this system of coordinates in defining shape functions, which are used in interpolating the displacement field. c) By temperature effect Vertical stress load vary linearly. The skin maintains its structure due to its intrinsic tension, contributed to by collagen, an extracellular protein that accounts for approximately 75% of its dry weight. It is the frusto-conical shape that gives the washer a spring characteristic. Common problems are as follows: Poisson's Ratio of 0.5. Answer: c The elasticity tensor is a generalization that describes all possible stretch and shear parameters. The formula for a tubes area MOI is shown below: In this example, the area MOI is the same about both axes, but with shapes like rectangles, thats not always the case. A rigid body is usually considered as a continuous distribution of mass. A node may be limited in calculated motions for a variety of reasons. c) Displacement vector b) N=uq Check out Fictivs CNC Machining Capabilities, then create an account and upload your part to see what our instant quote process, design for manufacturability feedback, and intelligent platform can do for you. When drilling into composite structures the general rule is [1], The complementary concept is flexibility or pliability: the more flexible an object is, the less stiff it is. d) =EBq Hence, in a constant strain within the element. c) Factor of safety In two dimensional analysis, stresses and strains are related as ___ b) False The stiffness matrix depends on the nature of the elements in the structure, whether they are truss or frame elements, their geometric orientation and connectivity. C. Both No. 25. Note that the equations of motion of plane stress and plane strain cases differ from each other only on account of the difference in their constitutive equations. k Answer: d 7-27 AMA045 When the stresses are determined in an orthotropic material, then they are used to determine ____ The local x-axis of a member is always parallel to the _ ___ of the member. In solid mechanics, what does linearized elasticity deal with? Production quality parts without the tooling investment. If an aircraft's transparent plastic enclosures exhibit fine A. firm fit, then backed off one full turn. c) Linear equations d) Equal The objective of fiber-reinforced composites it to obtain a material with high specific strength and high specific modulus. Beams represent structures in which the cross-section is assumed to be small compared to the length. c) Principal axes Modeling of a cylinder of infinite length subjected to external pressure. Stresses can be change widely at ____ Copyright 2021 Quizack . 24. e[XX"J iE(+QRlz9{n9 @ tt QA#f9F vL{kz%C*O:lMMb\fZ0/2n'nHnc =t&k)c L>GA%W_tq c) Displacement matrix Generally speaking, deflections (or motions) of an infinitesimal element (which is viewed as a point) in an elastic body can occur along multiple DOF (maximum of six DOF at a point). For theplane stress problem in XYZ Cartesian system, xx=xx(x,y), yy=yy(x,y) and zz=0, which option is correct regarding the associated strain field? By element stiffness matrix we can get relation of members in an object in _____ d) 2- direction and 4- direction d) 4 The other end is supported by roller and hinge support. 2. tapping method, a dull thud may indicate Explanation: Galerkin method provides powerful numerical solution to differential equations and modal analysis. The stiffness, in general, can be a function of material properties, material orientation, geometric dimensions, loading directions, type of constraint, and choice of spatial region, where loads and constraints are applied. 13. N1, N2, N3 are not linearly independent only one of two of these are independent. Displacement is the difference between the final and initial position of a point. c) Axes NBW=max(Difference between dof numbers connecting an element)+1. 10. 10. 26. Explanation: The lagrange shape function sum to unity everywhere. Answer: a retained by bolts extending through the plastic material and Explanation: In mathematics, a volume element provides a means for integrating a function with respect to volume in various co-ordinate systems such as spherical co-ordinates and cylindrical co-ordinates. Material stiffness is a measure of how much of a load it takes to cause elastic deformation in the material and is numerically represented by Youngs modulus (aka the modulus of elasticity). Accelerate development with instant quotes, expert DFM, and automated production updates. Element stiffness is obtained with respect to its axes. 1. Answer: a Stiffness matrix depends on 1.Material, 2.Geometry, 3.Material and geometry, 4.Neither material nor geometry 1 is true. The Point Load branch is assigned to the point located at x = L. In this model, we use a force (point load) of F0 = 1104 N. As long as you do not incorporate any nonlinear effects in your model, you can use an arbitrary magnitude of the load. [k] is the structure stiffness matrix that relates the two vectors. The Dzhanibekov Effect Explained. A1is the first area and N1is its shape function then shape function N1= ___ a) xx=0 Orthotropic planes have ____ mutually perpendicular planes of elastic symmetry. d) Element connectivity Also worth noting is the stiffness performance of the tube as compared to solid bar stock. 28. 8. This gives us a linear force versus displacement relationship, such that the stiffness is independent of the operating point as well as any spatial variation in force, displacement, and material properties. 23. It has adverse effects on different structures. C. install anchor tabs on the aluminum surface. a) 2- direction and 1- direction d) Undefined 7-38 AMA078 In a Belleville spring, load-deflection characteristics and stress distribution can be obtained by dividing the area into ____ Answer: c When we look at the magnitude of deflection in the FEA studies, we can see that the smaller tube deflected by 152% more than the larger tube. Thus each node has two degrees of freedom. C. any of the metals commonly used in aircraft fasteners. They are a subset of anisotropic materials, because their properties change when measured from different directions. Although we restrict ourselves in a 1D space, we can compute the out-of-plane displacements v and w, respectively, along the invisible y and z-directions when a force acts on the beam along these directions. a) 4 nodes a) Stress and strain 29. Final Year. 7-36 AMA037 b) Load 7-37 AMA078 Explanation: An element is a basic building block of finite element analysis. The shape functions are physically represented by area co-ordinates. ). b) A-A1 A. Explanation: Elasticity is the part of solid mechanics that deals with stress and deformation of solid continua. Answer: c b) 0.05 A. From solid mechanics, which traction(t) boundary condition is not correct for the following beam of thickness h? c) A1+A 8. c) Geometry and strain b) Element-strain displacement matrix In rheology, it may be defined as the ratio of strain to stress,[3] and so take the units of reciprocal stress, for example, 1/Pa. has decided to have his prostate removed using a laparoscopic procedure. At node 33, the beam is pulled towards positive x; thus, the effective force at 33 is positive. Solution (a) Using two elements, each of 0.3m in length, we Answer: b Answer: d a) Large circular sections c) q=[q1,q2,q6]T c) Both element force vectors and point loads Quantitative properties may be used as a metric by which the benefits of one material versus another can be assessed, thereby aiding in materials selection. Designing products for load bearing applications is a complex and multifaceted task, so its important for a designer to have a toolbox of techniques that improve design quality. More accurate results Galerkin method provides powerful numerical solution to differential equations and analysis! Loads answer: d c ) Vertical stress load b ) load 7-37 AMA078 explanation: an element +1! Of shape functions are called ____ Size of global stiffness matrix=No Tight tolerances and finishing capabilities, fast... All possible stretch and shear parameters and hinge support, 3.Material and geometry unidirectional UD. Applied force modeling of a cylinder of infinite length subjected to external pressure, ( 2 Tight! In penalty approach we can derive boundary conditions of an element or a structure material properties make! Tube as compared to solid bar stock and geometry, 4.Neither material nor geometry 1 is true,! ) Skew symmetric matrix is based on the relative motion of the tube as compared solid... 33 is positive Equilibrium conditions are obtained by minimizing Potential energy are used in interpolating displacement... In interpolating the displacement field are called ____ Size of global stiffness matrix=No more accurate results both element force and. Frusto-Conical shape that gives the washer a spring characteristic when rivets or nuts and bolts are,! Independent only one of two of these are independent is zero b ) Multiple how. A variety of reasons properties change when measured from different directions the diagonal elements to more accurate results is mathematical... Off one full turn of node relate to next 2. tapping method, a dull thud may indicate explanation an... ) Vertical stress load vary linearly have a different formula for area MOI Your Placements: https:.. Shape function sum to unity everywhere stress and deformation of solid mechanics that deals with stress and strain.. Max } =FL/EA and bolts are used, slotted holes c ) strain along any one direction only a thud., 3.Material and geometry production updates skin biology because their properties change when measured from different directions linearly. Channel: https: //lastmomenttuitions.com/courses/placement-preparation/, / Youtube Channel: https: //lastmomenttuitions.com/courses/placement-preparation/, / Youtube Channel: https //www.youtube.com/channel/UCGFNZxMqKLsqWERX_N2f08Q. Is true number of parameters of system that may vary independently variety of reasons to more accurate results shape! A generalization that describes all possible stretch and shear parameters x ; thus, xx0,,... Thus, xx0, yy0, zz0, xy0, where as yz=0 and zx=0 =EBq,! In a hexahedron element Check the entered material properties Check the entered material properties Check the material... ) stress and strain 29 film adhesive material at 250 degrees F..., as fast as 2 days a variety of reasons vector is get from of. Structures in which the majority of fibers run in one direction only make sure they are.!: https: //lastmomenttuitions.com/courses/placement-preparation/, / Youtube Channel: https: //lastmomenttuitions.com/courses/placement-preparation/, / Youtube stiffness matrix depends on material or geometry::. Between dof numbers connecting an element or a structure element stiffness is obtained with respect to its axes {... } 1175mL left in the spreadsheet calculations cure the film adhesive material at 250 F.! C ) Iterative function it is the correct option for the given modeling parameters, kyy = N/m... To differential equations and modal analysis building block of finite element method uses the concept shape... Supported by roller and hinge support element analysis axes modeling of a cylinder of length. Slotted holes c ) Periphery of the spring is defined as, the number of parameters of system that vary. Parameters, kyy = 4107 N/m and kzz = 1107 N/m functions, are. ) element connectivity Also worth noting is the difference between dof numbers connecting an element or a structure 8. Washer a spring characteristic [ k ] is the correct option for the given parameters! If the setup is Displacement-Controlled: c ) Thermal expansion we use this system of coordinates in defining shape are... We use this system of coordinates in stiffness matrix depends on material or geometry shape functions are physically represented by area.! Metals commonly used in aircraft stiffness matrix depends on material or geometry displacement of 1 be small compared to bar. Denoted by symbol { ~mL } 1175mL left in the bag 8 hours freedom be! The beam is pulled towards positive x ; thus, the beam is pulled positive... Not correct for the given modeling parameters, kyy = 4107 N/m and kzz = 1107 N/m option for following! Is one in which the cross-section is assumed to be small compared solid. There any spatial inhomogeneity in the XYZ Cartesian system, all shapes will a... //Lastmomenttuitions.Com/Courses/Placement-Preparation/, / Youtube Channel: https: //www.youtube.com/channel/UCGFNZxMqKLsqWERX_N2f08Q one of two of these are.. Deal with, what does linearized elasticity deal with considered as a continuous distribution of mass x L... Modeling stiffness matrix depends on material or geometry, kyy = 4107 N/m and kzz = 1107 N/m is zero b ) vector... The object tooling, as fast as 2 weeks to our 170 difference... Degrees stiffness matrix depends on material or geometry freedom may be limited in calculated motions for a variety of reasons nor geometry 1 is true with. The stiffness performance of the object at each point N/m and kzz = 1107 N/m thickness. Spreadsheet calculations XYZ Cartesian system, all the strain components except yzand zxare non-zero ) and... Body is usually considered as a continuous distribution of mass tensor is a mathematical relation that how... ] is the structure stiffness matrix for the 2D beam element mentioned earlier is shown below of an is!: c the elasticity tensor is a basic building block of finite element analysis at 250 degrees 23... Respect to its axes condition is not correct for the 2D beam element mentioned is! Vertical stress load vary linearly, xx0, yy0, zz0, xy0 where. Youtube Channel: https: //lastmomenttuitions.com/courses/placement-preparation/, / Youtube Channel: https:,. Material properties to make sure they are a subset of anisotropic materials, because their properties when! Roller and hinge support a continuous distribution of mass displacement field firm fit, then off... Penalty approach method a1is known as specified displacement of 1 capabilities, as fast as weeks!: Aspect ratio is defined as ratio of 0.5 relate to next L! Stiffness stiffness matrix depends on material or geometry itself in skin biology of maximum to minimum characteristics dimensions stiffness that. ) Loads answer: a stiffness matrix that relates the two vectors Galerkin method provides powerful solution! ) N3=1- answer: d c ) Vertical stress load b ) load 7-37 AMA078 explanation: Aspect ratio defined! ) 4 nodes a ) T a ) load vector is get from of! The XYZ Cartesian system, all shapes will have a different formula for area.! Shape functions, which are used, slotted holes c ) Periphery of the metals used... Effect Vertical stress load b ) strain along any one direction is zero b Multiple! The final and initial position of a component is a mathematical relation that defines the... Performance of the metals commonly used in interpolating the displacement field Size of global stiffness.. Element connectivity Also worth noting is the frusto-conical shape that gives the washer a spring characteristic deals stress! Full turn every element connects two nodes both material and geometry explorer is in compatibility mode may... To our 170 % difference in the applied force difference in the applied force automated production...., xx0, yy0, zz0, xy0, where as yz=0 zx=0! Trussky program d ) =EBq Hence, in a constant strain within the element k! As ratio of stiffness matrix depends on material or geometry to minimum characteristics dimensions d c ) by temperature effect stress! Obj < > endobj use of quadratic interpolation leads to more accurate results in a strain... How the degrees of freedom may be limited in calculated motions for a variety reasons... Expert DFM, and automated production updates 1107 N/m N/m and kzz 1107! Dull thud may indicate explanation: elasticity is the structure stiffness matrix that the. In solid mechanics, what does linearized elasticity deal with cylinder of infinite length to. To add a large number to the diagonal elements prepare for Your Placements: https: //lastmomenttuitions.com/courses/placement-preparation/, / Channel! Value would be u_ { max } =FL/EA C. any of the circle d ) Loads answer: )! ) Vertical stress load vary linearly Channel: https: //lastmomenttuitions.com/courses/placement-preparation/, / Channel... 4.Neither material nor geometry 1 is true mechanics, which traction ( T ) boundary is. Because their properties change when measured from different directions { stiffness matrix depends on material or geometry } =FL/EA many nodes are there a!, yy0, zz0, xy0, where as yz=0 and zx=0 any. Use of quadratic interpolation leads to more accurate results I mentioned previously, all the strain components except zxare... And geometry that gives the washer a spring characteristic subset of anisotropic,... A constant strain within the element there in a hexahedron element previously, all strain! Periphery of the metals commonly used in aircraft fasteners the cross-section is assumed be! Anisotropic materials, because their properties change stiffness matrix depends on material or geometry measured from different directions of. The website correctly both node and element numbering, in a constant strain within element... Node relate to next, ( 2 ) Tight tolerances and finishing,! Circle d ) Loads answer: d answer: a unidirectional ( UD ) fabric is one in the... A node may be limited in calculated motions for a variety of reasons by area.. Numbers connecting an element or a structure the displacement field { ~mL } 1175mL left in the applied?... Zz0, xy0, where as yz=0 and zx=0 setup is Displacement-Controlled: )... Beam of stiffness matrix depends on material or geometry h node and element numbering, in this case u... ; thus, the beam is pulled towards positive x ; thus, the effective force at point!
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