V notch calculation

[construct2]

Dear all,

I was checking for the strains around a V notch (single edge). I was wondering if it is possible to calculate the stresses at any point around the notch using theory of elasticity? I have heard of Williams, but i do not know if his formulas are of any help. Or do you think I would be better off doing an FE analysis?
Any suggestions are welcome!

 

[CoryPad]

It is possible to calculate stresses around a notch using elasticity. I do not know who Williams is. FEM analysis will be able to answer the question, you jus need a good model and a fine mesh near the notch. If you don't want to do FEM analysis, then review a book on Fracture Mechanics. A good one is Fracture Mechanics by T. L. Anderson.

Regards,

Cory

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[corus]

Stress concentration factors for V notches are given in Peterson and in Roark, forumlas for stress and strain.

corus

http://www.corusresearch.com

 

[jetmaker]

Another method is to do photoelastic analysis.

jetmaker

 

[construct2]

thanx all for the help,
I did an FEA. I also calculated the stresses by stress concentration using K. The two values are pretty close together.
thx again,

construct2