Dislocation pileups and elastic cracks at a bimaterial interface
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cation of B u r g e r s vector b be s i t u a t e d in x > 0 at (t, 0). The line d i r e c t i o n is p a r a l l e l to the z axis. A s s u m i n g p e r f e c t bonding at the weld, the s t r e s s field due to the d i s l o c a t i o n on the plane y = 0 at (v, 0) is:
Glb [
1
x-~)
%z = -~-\-Z-~-t +
(x > O)
61b 1 + k OYz - 2~ x - t
(x
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