Polymer Engineering question related to Von Mises yield criterion

  • Thread starter kennyyip
  • Start date
  • #1
1
0
It is a proof question. Does anyone can tell me how to do this question?question 22.2
it is the question for extra credit for my final exam.
thank you so much.
 

Attachments

  • DSC_2185.jpg
    DSC_2185.jpg
    28.6 KB · Views: 397

Answers and Replies

  • #2
114
3
You can find A and B with two simultaneously equations.
For the first equation assume uniaxial tension yielding - i.e. take σ1 as fty and σ2=σ3=0.
For the second equation assume uniaxial compression yielding. This is a polymer so it makes sense that fty and fcy would be different values - and they have to be different values otherwise you'd find that A=0.

Once you have A and B, then consider the hydrostatic case - i.e. take σ1=σ2=σ3=σ. Solve for σ.
 

Related Threads on Polymer Engineering question related to Von Mises yield criterion

Replies
3
Views
1K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
2
Views
4K
Replies
1
Views
3K
  • Last Post
Replies
1
Views
2K
Replies
0
Views
4K
  • Last Post
Replies
1
Views
926
Replies
1
Views
2K
  • Last Post
Replies
1
Views
1K
Top