复合材料科学与工程Issue(7)：33-43,11.DOI:10.19936/j.cnki.2096-8000.20260728.005
基于变刚度软物质的复合材料预紧力齿力学性能研究
Study on mechanical properties of composite pre-tightened toothed based on variable stiffness soft materials
摘要
Abstract
The embedding of soft materials makes the load distribution among the teeth in the pre-tightened tooth joint of composite materials tend to be uniform,improving the bearing performance of the joint.However,it also leads to stress concentration at the tooth tip of a single tooth,which cannot fully utilize the performance of the soft ma-terial.Based on this,this paper proposes a single-tooth joint configuration with embedded variable stiffness soft mate-rials.Through experiments and finite element models,the influence of constant stiffness and variable stiffness soft ma-terials on the bearing capacity of single-tooth joints is compared and analyzed.The research results show that com-pared with the traditional single-tooth joint,embedding constant stiffness soft materials reduces the bearing capacity of the single-tooth joint by 54.4%,while embedding variable stiffness soft materials increases the bearing capacity of the single-tooth joint by 12.5%.Compared with constant stiffness soft materials,the embedding of variable stiffness soft materials can effectively reduce the stress concentration at the tooth tip of the composite material teeth,thereby impro-ving the bearing performance of the joint.关键词
预紧力齿连接/等刚度软物质/变刚度软物质/应力集中/渐进损伤模型Key words
pre-tightened toothed connection/constant stiffness soft materials/variable stiffness soft materi-als/stress concentration/progressive damage model分类
通用工业技术引用本文复制引用
李飞,许伟,赵烈秋,陈维昭..基于变刚度软物质的复合材料预紧力齿力学性能研究[J].复合材料科学与工程,2026,(7):33-43,11.基金项目
国家自然科学基金(52478138) （52478138）
