Fracture mechanics - crack tip field

[mellejgr]

Dear all,
I have a question on the crack-tip displacement field in Mode 1 loading.
This is usually given by an equation of the form:

u_ij=K/G * f(r,theta)

where u_ij are the displacement components, K the SIF and G the shear modulus. My question is regarding this modulus, does the presence of a crack not influence the shear modulus of the material, and as such shouldn't this formula be updated?

Many thanks for anyone who can shed some light on this for me.

 

[mfgenggear]

this professor is very good I like studying his lectures.
hope it helps

https://youtu.be/SD6qITe3-Xo

 

[rb1957]

the crack doesn't change material properties, the crack affects the displacements of the object.

another day in paradise, or is paradise one day closer ?