Study on the in-plane shear properties of ultra-thin-ply carbon fiber reinforced composites

doi:10.19936/j.cnki.2096-8000.20260828.005

Abstract

Abstract: Ultra-thin-ply composites have better mechanical properties than standard thick ply composites. The in-plane shear properties of carbon fiber reinforced composites with ply thickness of 24 μm, 55 μm, 75 μm and 100 μm are studied by tensile tests of ±45° laminates. The influence of ply thickness on hardening, necking and failure processes of specimens under loading is discussed. The shear failure mechanisms of laminates with differentply thickness are revealed. Quantitative results for shear strength and shear modulus are obtained. Results show that ultra-thin-ply composites exhibit stronger progressive damage phenomenon under shear load, with lower strength limit but larger fracture displacement. The shear strength of ultra-thin-ply composites is 15.8% higher than that of standard thick ply composites, and the shear modulus increases by 8.1%.

Key words: ultra-thin-ply, carbon fiber reinforced composites, in-plane shear, ±45° laminates tensile

CLC Number:

TB332

LIU Yanpeng, YAN Qiangqiang, ZHAO Ruijie, LIANG Shaomin, REN Mingfa. Study on the in-plane shear properties of ultra-thin-ply carbon fiber reinforced composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(8): 35-41.

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