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coupling between plasticity and damage

Submitted by nilesh on
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Hello all,

 I am Nilesh and doing
study of Continuum damage mechanics, in that context, I have some doubt s

     Can anyone tell
me?

1. As in plasticity we have yield surface  and in damage we have damage surface  but in this case,  does damage surface working same ( for
isotropic and kinematics damage???? ) Like in isotropic and kinematic
hardening??? I mean expansion and movement for isotropic and kinematic damage
case???

Sih's Strain Energy Density Approach in Fracture - why is it not very popular?

Submitted by yoursdhruly on
education
fracture
strain energy density
Sih

Most fracture classes and texts focus on the following different approaches: Griffith's energy approach, Irwin's stress intensity factor approach, the Barenblatt-Dugdale strip yield model (and subsequently, cohesive zone modeling) and Rice's J-Integral approach. As a graduate student studying fracture mechanics, I have often wondered why there seems to be very little discussion in the community with regard to Sih's strain energy density approach. Are there any fundamental limitations to the approach or are there "other" reasons behind this? Your thoughts are appreciated.

stress singularity and stress relationship

Submitted by msd.jacob on
education

Dear All 

Williams analysis is well known for stress singularity. Actually when we are analysing the stress distributions between two diffrent configuration which is given below ,based on the stress singularity, I got a doubt...how the order of stress singularity is directly related with the stress. (we can get the relationship using equation) however if i want to explain to a student who never come across with applied mechanics. How can we explain to him in very simple and understandable manner.   

New Book - Mechanics of Microelectronics

Submitted by Xuejun Fan on
education

You may want to take a look of this newly published book entitled Mechanics of Microelectronics, which is

Series: Solid Mechanics and Its Applications , Vol. 141

Springer, May 2006

authored by G.Q. Zhang, W.D. van Driel, and X.J. Fan http://www.springer.com/east/home/engineering?SGWID=5-175-22-165281764-detailsPage=ppmmedia|toc

mapped meshing model having a crack in ansys

Submitted by Zoeb Kaizar La… on
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hi,

 

i am student of M tech 2nd year and working on fracture mechanics one of the problems i am encoutaring is that my model is a rectangular plate and having a central hole with a crack now problem is that i can not mapped mesh the model in ansys can anyone tell me how to map meshed the model.

 

Regards

zoeb lakdawala

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