复合材料科学与工程Issue(12)：26-36,11.DOI:10.19936/j.cnki.2096-8000.20251228.004
湿热环境对大丝束碳纤维平纹编织复合材料力学性能的影响及其失效机理
Influence of hygrothermal environments on the mechanical properties of large tow carbon fiber plain weave composites and their failure mechanism
摘要
Abstract
Large-tow carbon fiber reinforced plastics(CFRP)hold significant promise for various applications,attributed to their exceptional cost-effectiveness and exceptional performance.This study delves into the impact of hygrothermal environments on the tensile and compressive capabilities of plain-woven large-tow CFRP,accompa-nied by an in-depth analysis of its damage patterns and failure mechanisms.Utilizing 48K plain-woven large-tow carbon fiber prepregs,two types of laminates,namely[0]4 and[45/0/-45/90]S,were crafted.These laminates were subjected to tensile and compressive tests after being exposed to room-temperature dry and elevated tempera-ture wet conditions for 14 days.The findings reveal a substantial decline in the compressive properties of large-tow CFRP following hygrothermal treatment.Scanning electron microscopy(SEM)was utilized to scrutinize the fracture morphologies.A dual-perspective analysis,encompassing both macroscopic and microscopic viewpoints,was con-ducted to elucidate the failure modes and mechanisms of the material.It was observed that the degradation of the resin matrix after hygrothermal treatment weakened both the fiber-matrix interface and the orthogonal woven inter-face,ultimately altering the failure modes of large-tow CFRP and compromising its mechanical properties.关键词
湿热/大丝束CFRP/力学性能/失效机理/复合材料Key words
hygrothermal/large tow CFRP/mechanical properties/failure mechanism/composites分类
通用工业技术引用本文复制引用
杨文涛,于宁博,王明振,张楚哲,冀运东..湿热环境对大丝束碳纤维平纹编织复合材料力学性能的影响及其失效机理[J].复合材料科学与工程,2025,(12):26-36,11.基金项目
2023年湖北省重大攻关项目(JD)(2023BAA028) （JD）
