Residual stresses in thick walled cylinders (autofrettage)]

  • Thread starter azzamut
  • Start date
  • #1
5
0

Homework Statement



1. from a design engineers point of view identify consisely the relative meris of the emperical TRESCA and VON MISES approaches as applied to open ended thick walled cylinders.

Hence specify with reasons what you believe to be the most appropriate approach.

----------------------------------------------

2. Discuss factors which can cause recovery to be non elastic. In qualititive terms what effects might such anelasticity have upon the residual stress distributions


----------------------------------------------

3. List and discuss the main benefits of the autofrettage process as applied to thick walled cylinders.



Ans...

1.

2.

3. Tensile stresses are lower at the bore
 
Last edited:

Answers and Replies

  • #2
Gokul43201
Staff Emeritus
Science Advisor
Gold Member
7,051
18
You've just written out the question. We can't help you until you also show some effort towards answering it. Please read the forum guidelines.
 
  • #3
5
0
thats because im stuck with these questions! some advise please of where to start
 
  • #4
5
0
anyone
 
  • #5
Gokul43201
Staff Emeritus
Science Advisor
Gold Member
7,051
18
What does your text/notes have to say about the Tresca and von Mises criteria? Which is better suited to more ductile materials? Which is more conservative? Which one is better suited to linear structures, and which one to shells? What is the relevance of the open ends? Does that make any difference to the choice of failure criterion?
 

Related Threads on Residual stresses in thick walled cylinders (autofrettage)]

  • Last Post
Replies
0
Views
1K
Replies
4
Views
670
  • Last Post
Replies
0
Views
2K
  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
Replies
9
Views
5K
Replies
2
Views
5K
Replies
1
Views
179
Replies
1
Views
2K
Top