10 questions linked to/from Stress calculations using finite elements
996 views

How can I use Mathematica to solve this kind of plane stress problem?

I want to solve the plane stress problem of the following stress boundary: Note that $\sigma_x=10$, etc. in the figure above represents the stress boundary condition rather than the displacement ...
1k views

Problems with stress distribution using FEM

I'm trying to get the displacements u(x,y) and v(x,y) of a beam simply suported, the stress distribution in the middle section should be a linear function: but i'm getting this: My code is: ...
• 153
504 views

FEM stress analysis by considering thermal strain

Following the question in this post, I am trying to do a stress analysis by including thermal strain. @user21 already showed how to do a pre-stressed analysis. Analogically, I modified the code and ...
• 131
1k views

Stress calculations in three dimensions (finite element method)

Calculation of stress in two dimensions is covered in this post by the helpful user21. I am now trying to work in three dimensions. For this we need a stress operator which I have taken from Help. <...
• 16.5k
911 views

How to explain the meaning of NeumannValue function in detail

I saw here that NeumannValue is used to represent the stress boundary condition when solving the plane stress problem. In the help information of the ...
207 views

MMA 12: Transient plane stress problem

Based on the numerical example enter link description here which is proposed by @Hugh and @user21, then, I continue to solve transient plane stress problems (...
• 1,816
623 views

Specify a force on the entire body (e.g. gravity)

In the thread Stress calculations using finite elements User21 showed an example how to define a force over the entire body during FEM calculation as boundary condition. See the screenshot below from ...
620 views

Mysterious Difference in Equation Formulation for NDSolveValue and NDEigensystem

I have taken a standard equation from Mathematica help from here for a stress operator. I have also formulated the equivalent equations from engineering texts. When I compare the two equations Using ...
• 16.5k