MULTILAYER-STRESS-HYBRID-FINITE-ELEMENT METHOD FOR FRACTURE ANALYSIS OF ANGLE-PLY LAMINATES.

T. Nishioka, S. N. Atluri

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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 languageEnglish
Pages195-205
Number of pages11
StatePublished - Jan 1 1980
EventNumer Methods in Fract Mech, Proc of the Int Conf, 2nd - Swansea, Wales
Duration: Jul 7 1980Jul 11 1980

Conference

ConferenceNumer Methods in Fract Mech, Proc of the Int Conf, 2nd
CitySwansea, Wales
Period07/7/8007/11/80

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Nishioka, T., & Atluri, S. N. (1980). MULTILAYER-STRESS-HYBRID-FINITE-ELEMENT METHOD FOR FRACTURE ANALYSIS OF ANGLE-PLY LAMINATES.. 195-205. Paper presented at Numer Methods in Fract Mech, Proc of the Int Conf, 2nd, Swansea, Wales, .