Linked Questions

9 votes
3 answers
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 ...
A little mouse on the pampas's user avatar
13 votes
1 answer
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: ...
Gonza_'s user avatar
  • 153
7 votes
3 answers
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 ...
XIJUN SHI's user avatar
  • 131
8 votes
1 answer
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. <...
Hugh's user avatar
  • 16.5k
9 votes
1 answer
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 ...
A little mouse on the pampas's user avatar
2 votes
1 answer
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 (...
ABCDEMMM's user avatar
  • 1,816
2 votes
1 answer
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 ...
ronin2222's user avatar
5 votes
1 answer
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 ...
Hugh's user avatar
  • 16.5k
3 votes
0 answers
217 views

FEM stress analysis by considering bending moment

I found an example of using FEM for stress analysis in the forum, the code provided by @user21, which is very friendly for beginners. ...
lumw's user avatar
  • 593
1 vote
0 answers
140 views

ElementMeshContourPlot and PlotLegend [closed]

Does anybody know why ElementMeshContourPlot ignored PlotLegends->Automatic? I have used the useful topic about Von Mises stress but I vould like a colored scale on the right of the plot. With ...
Ramiro dell'Erba's user avatar