Fea Definition and 112 Threads

  1. W

    Need help with FEA of a viscoelastic damper

    I am trying to do a FEA of a viscoelastic damper. Should I use Ansys11 to do the analysis or Ansys Workbench 11. If I should use Workbench, can anybody give a good link where I can find tutorials on performing FEA on viscoelastic dampers.
  2. B

    Need Help with Yield Strength for FEA

    Hi, folks, I'm an aspiring Mechanical Engineer, & as such am very new to the subject of stress, strain, etc. I'm designing an assembly using a hi-performance polymer that has the following characteristics: Tensile Strength, 73°F 10.1 kpsi (10,100 psi) Tensile Modulus (E) 340 kpsi...
  3. C

    Validation of Ansys FEA solution

    For the tension test specimen (shown below in the link) I am using Ansys Workbench to calculate the stress in the parallel portion. How could I go about checking this through manual calculations? I have been told to use beam theories for this, however I can't see how this applies as the force...
  4. Astronuc

    Finite Element Analysis (FEA) Products and Developers

    These are the one with which I am most familiar. There are others, but these are the biggies. We use ABAQUS as well as our own proprietary methods, particularly for dynamic, large strain and nonlinear FEA. ABAQUS (HKS) - for nonlinear Finite Element Analysis (FEA) www.hks.com...
  5. J

    Which Solid Modeling and FEA Software is Most Preferred by Engineers?

    Dear fellow engineers, I resently posted my resume and got several reactions good for me bla bla... Question. Which modeling sofware (Pro-E, Catia, Solidworks) and which stress analysis (FEA) program is best and most used. I like pro_E. It seems that everybody is using something else and...
  6. C

    Fea on single plate element-image attached

    I just modeled a single square plate of size 50x50 and thick 1 and applied a force on two nodes(total force is hence 100). The software i used is nastran. The force vector is shown as arrow in the image. My doubt is all the points in the plate should have the stress=100/area=100/(50*1)=2...
  7. P

    Dynamic FEA of a brass sheet buckling

    Hi all, I am a student of Music technology and for a project that I am working on I need to do an unusual FEA. I want to create a simulated model of the sound phenomenon that occurs when a sheet of material is deformed. As part of this I am required to a dynamic finite element analysis for...
  8. C

    What are shape functions and how are they used in FEA?

    I know that shape function is a function that will give the displacements inside an element if its displacement at all the node locations of the element are known. What is linear ,polynomial in shape functions. If i say as linear somebody else may say polynomial etc. I am not able to...
  9. C

    How Does Non-Linear FEA Work After Applying a Force?

    How non linear fea works. I am studying that and i can't find any material in the web which has some basics. How the Newton raphson method is used in non linear fea suppose i apply a force f on a structure after that how non linear fea works?
  10. C

    Stiffness Influence Coefficient Fea For Plate

    i have put this question in other forum also. I have understood the stiffness matrix generation for a single rectangular element as below. I consider each node having 2 translational dofs each in x and y coord system. There are 4 nodes in this rectangular plate element and hence 8 dofs...
  11. C

    Stiffness matrix fea plate element

    i know that the stiffness for a line element is calculated as fl/ae where a is known as area and l is the length,f is the force applied and e is the youngs modulus. How the stiffness of a plate element are calculated?
  12. C

    Plate top vonmises stress in fea

    I just used nastran to do an fea analysis using plate elements of thickness 1.22 mm. Nastran gives two vonmises stress values for plate elements 1.plate bottom von mises stress 2.plate top von mises stress what are they?
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