APPLICATION OF FAILURE CRITERIA IN THE COMPOSITE LAMINATEOPEN HOLE FOR OUT-OF-PLANE LOADS

doi:10.19936/j.cnki.2096-8000.20210628.008

Abstract

Abstract: The failure modes that local matrix cracking, fiber breakage and delamination caused by local high stress which were introduced by hole and bending. Stresses around the hole edge of infinite laminated plate were studied with the method of analytic method and finite element method. Based on the classical laminated plate theory and the theory of complex function the calculation method was developed for the analysis of open holes in composite structures under out-of-plane loads, using conformal representation, and the boundary issue of stress function on the complex aperture was solved. Real stress and strain distribution around the hole were investigated by the introduction of Puck and Yamada-Sun mixture strength failure criterion, through the comparison with the finite element results, and a good agreement can be found. The hole laminated plate failure could be predicted based on the guide of this paper.

Key words: composite; open holes; complex function; bending; failure criteria

CLC Number:

TB332

QIN Jian-bing, ZHAO Xi, LIANG Rong-na. APPLICATION OF FAILURE CRITERIA IN THE COMPOSITE LAMINATEOPEN HOLE FOR OUT-OF-PLANE LOADS[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(6): 52-57.

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