Research progress on construction of stiffened interphase and rigid-soft interphase of carbon fiber composites

doi:10.19936/j.cnki.2096-8000.20240728.016

Abstract

Abstract: Carbon fiber reinforced polymer (CFRP) have excellent properties such as light weight, high strength, high modulus, and have wide application prospect in the fields of aerospace. As a bridge connecting the resin matrix and carbon fiber (CF) reinforcement, the interphase is an important factor affecting the mechanical properties of composite. Aiming at the problem that the modulus difference between carbon fiber and resin matrix is too large, it's an effective strategy to improve the interfacial properties by improving the modulus of interphase to make the modulus transition smoothly and improve the stress transfer efficiency. The construction methods of stiffened interphase and rigid-soft interphase in recent years are mainly summarized in the paper. Finally, some issues of the interphase of CFRP are discussed and the future trends of interfacial reinforcement research are prospected.

Key words: carbon fiber, composite, modulus transition, stress relief, interphase enhancement

CLC Number:

TB332

LI Baolai, ZHEN Ziting, BU Tongan, YANG Jiale. Research progress on construction of stiffened interphase and rigid-soft interphase of carbon fiber composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(7): 122-128.

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