Abstract
An efficient assumed stress hybrid finite element method, based on a complementary energy principle and a Lagrange-multiplier technique, is presented for fracture analysis of cracks and holes in angle-ply laminates. A fully three-dimensional stress state in the laminate is accounted for. Asymptotic analytical solutions in the vicinity of cracks and holes are embedded in special crack and hole elements; interlayer traction reciprocity condition is satisfied a priori; and cross-sectional warping of the laminate is allowed. The method leads to direct computation of mixed mode stress-intensity factors near the crack-front or of stress-concentration factors near fastener holes in composites.
Original language | English |
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Pages | 195-205 |
Number of pages | 11 |
State | Published - 1980 |
Event | Numer Methods in Fract Mech, Proc of the Int Conf, 2nd - Swansea, Wales Duration: Jul 7 1980 → Jul 11 1980 |
Conference
Conference | Numer Methods in Fract Mech, Proc of the Int Conf, 2nd |
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City | Swansea, Wales |
Period | 07/7/80 → 07/11/80 |