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김인권(Kim In-Gwon),공창덕(Kong Chang-Duk),장병섭(Jang Byung-Sub) 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.3
The purpose of this work is to investigate the static strength, the stress distribution, and the failure process of quasi-isotropic composite laminates made of two different matrices when loading directions are changed. We carried out static tests of [0/-60/+60]<SUB>s</SUB> and [+30/-30/90]<SUB>s</SUB> laminates. Two types of matrices used are AS4/epoxy and AS4/PEEK. The damage mechanisms of the quasi-isotropic laminate, [0/-60/+60]<SUB>s</SUB> strongly depend on the load direction applied to the laminate.