TY - GEN

T1 - Calculation of stress intensity factors for a crack along the ±45° interface of a fiber reinforced material

AU - Banks-Sills, Leslie

AU - Freed, Yuval

PY - 2005

Y1 - 2005

N2 - The three-dimensional M-integral is presented for calculating stress intensity factors for an interface crack between two fiber reinforced materials which are treated effectively as transversely isotropic materials. The material in the upper half-space is in the +45°-direction, whereas the material in the lower half-space is in the -45°-direction. An interface crack in this material possesses oscillatory and square-root singularities. A test case of a three-dimensional bimaterial slab containing an edge interface crack is described. The first term of the asymptotic displacement field is applied with the complex stress intensity factor K = 0 and mode II stress intensity factor KII = 1 on the outer boundaries of the body. The crack faces are traction free. Solution to this problem, should be precisely the imposed stress intensity factor. Excellent results are obtained. Other test problems, not presented here, also produce excellent results.

AB - The three-dimensional M-integral is presented for calculating stress intensity factors for an interface crack between two fiber reinforced materials which are treated effectively as transversely isotropic materials. The material in the upper half-space is in the +45°-direction, whereas the material in the lower half-space is in the -45°-direction. An interface crack in this material possesses oscillatory and square-root singularities. A test case of a three-dimensional bimaterial slab containing an edge interface crack is described. The first term of the asymptotic displacement field is applied with the complex stress intensity factor K = 0 and mode II stress intensity factor KII = 1 on the outer boundaries of the body. The crack faces are traction free. Solution to this problem, should be precisely the imposed stress intensity factor. Excellent results are obtained. Other test problems, not presented here, also produce excellent results.

UR - http://www.scopus.com/inward/record.url?scp=84869745658&partnerID=8YFLogxK

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AN - SCOPUS:84869745658

SN - 9781617820632

T3 - 11th International Conference on Fracture 2005, ICF11

SP - 671

EP - 676

BT - 11th International Conference on Fracture 2005, ICF11

T2 - 11th International Conference on Fracture 2005, ICF11

Y2 - 20 March 2005 through 25 March 2005

ER -