d) The difference between geometric nonlinearity and material nonlinearity is deformation.
geometric nonlinearity: The deformation of the mechnanical part depends on the dimensions of the part it may be a large or small deformation based on the geometric nonlinearity we will define the deoformation.
example: small deoformation:cubes,shells ; large deformation:metal forming,tire analysis
material nonlinearity:it involves in the current deformation,deformation history,rate of deformation,temperature and pressure of the material.
example:rubber and plastic material
geometric nonlinearity | material nonlinearity |
large displacement | current displacement |
small deformation | deformation history |
e) ans: in finite element analysis self weight of the structure will be added based on the density of the material
FEA ( finite element analysis ) d) Describe the difference between geometric nonlinearities and material nonlinearities....
FEA ( finite element analysis ) c) In terms of performing a finite element analysis, describe the phrase "stress miffening, Inverse of buckling Increase in transverse stiffness wol increase of axial force d) Describe geometric nonlinearities and when they should be used.
FEA ( finite element analysis ) b) Describe an example of a harmonic response finite element analysis c) Describe the difference between solid elements and shell elements. DO
FEA ( finite element analysis ) c) Describe the boundary conditions needed to impose a symmetry plane when using beam elements. d) How do you know when to turn on "Large Deflection? e) Describe the difference between mesh convergence and force convergence. force converge
FEA 1. Answer True or False below. (2 points each) When performing a nonlinear FE analysis, pressure is considered a “follower force.” Once an element aspect ratio exceeds 1, the larger the aspect ratio, the better the element performs. Eigenvalue buckling provides a good estimate of the Euler critical buckling load. It is important to include the Bauschinger effect in your FE model when simulating problems that experience large strain. Buckling can be considered as the inverse of stress stiffening....
1. Answer True or False below. (2 points each) When performing a nonlinear FE analysis, pressure is considered a "follower force." Once an element aspect ratio exceeds 1, the larger the aspect ratio, the better the element performs. Eigenvalue buckling provides a good estimate of the Euler critical buckling load. It is important to include the Bauschinger effect in your FE model when simulating problems that experience large strain. Buckling can be considered as the inverse of stress stiffening. Most...
summatize the following info and break them into differeng key points. write them in yojr own words apartus 6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...