Dear all,
I need to calculate SIF through a FEM program by writing some line of codes. The problem is that I wasn't able to find a reference contains straightforward formulation and procedure for this. Can anybody help me please with this issue?
Cordially,
Mohammad
do you mean for cracks? if so
do you mean for cracks? if so, you can look at the automatic mesh generation feature of ANSYS Workbench, which creates your crack, defines a crack front, meshes and gives you plots of SIF along the crack front. It's all based on APDL code which you can see by exporting your intput file if you are not content with just getting the answer.
In reply to do you mean for cracks? if so by jstello
I need formulation and methodologies
I'm familiar with available features of commercial softwares like ANSYS. What I need is a reference that contains a straightforward formulations to implement inside a academic FE code. I want to improve our code to have the ability to calculate the SIF.
For those who are interested in this topic
These are some links that contain useful info to handle these issue:
1- A dissertation on XFEM
2- Comparison of KI calculation methods
3- A comparison of stress intensity factors obtained through crack closure integral and other approaches using eXtended
element-free Galerkin method
4- Calculation of stress intensity factors by the force method
5- J-integral calculation by domain integral technique using adaptive finite element method