Cross sectional area - Young Modulus

  • Thread starter RCB
  • Start date
  • #1
RCB
29
0
out of interest does cross sectional area change when a force is applied (lets say I had a wire and I applied a force to it, the wire would stretch ) does its cross sectional area change
 

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
Gold Member
7,165
507
Yes. During the stretching, the volume remains constant, so if the length increases, the area must decrease. Stretching a rubber band provides a good example of this. If the wire is steel, the stretch is relatively small under light loads, and thus the area reduction is small; as the load increases, then so does the elongation, and the reduction in area becomes significant beyond the wire's elastic limit as it approaches it's ultimate breaking strength.
 

Related Threads on Cross sectional area - Young Modulus

Replies
3
Views
17K
Replies
3
Views
63K
Replies
3
Views
10K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
2
Views
2K
Replies
2
Views
2K
  • Last Post
Replies
3
Views
4K
  • Last Post
Replies
7
Views
26K
  • Last Post
Replies
2
Views
763
  • Last Post
Replies
7
Views
24K
Top