Problem Griffiths

ALEX_VJUN's picture

Hello everyone!

I work with the task of Griffith in the delta to the model of the fragile body. In his model, the zone near the crack tip in which a voltage above the limit of the brittle strength can be regarded as sections (length [a,b]), which are attracted to the opposite shore with a Stress Sigma ^T-stress.

Problem:
Given a plate of finite size and the size of the shelf [-a, a]. A
system of coordinates x_1, x_2 (x_1-directed horizontal) is given Sigma^t, and Sigma ^ infiniti.
to find a point b in which Sigma_22 tends to 0 when approaching the point b on the right.

Accommodates the position of point b. Stand the problem in ABAQUS. Stress in Sigma_22 tends to point b does not go to 0. I can not обїяснить why. Arodi everything right.

Give us your ideas.

P.S. Sorry for my english


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