No strain rate dependency- then?

  • Thread starter svishal03
  • Start date
  • #1
129
1
i,

I'm attaching a file which have the stress strain curves of same material at quasi static and high strain rates.


See materials on page 1 and page 2.

Both are same materials.

The curve on page 1 is obtained at quasi static strain rate and the curve on page 2 is obtained at high strain rate.

Both have almost the same ultimate stress indicating that material is not strain rate dependent.

However, there is some change in elastic limit. Material at high strain rate has a lower elastic limit than one at high strain rate as well as there is some difference in slopes at quasi static and medium strain rates.

What can we infer why- changes in slope and elastic limit are occurring?
 

Answers and Replies

Related Threads on No strain rate dependency- then?

  • Last Post
Replies
1
Views
787
  • Last Post
Replies
1
Views
25K
Replies
2
Views
2K
Replies
2
Views
6K
Replies
1
Views
2K
  • Last Post
Replies
17
Views
6K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
1
Views
8K
Top