体育器械高分子复合材料力学性能研究
Study on the effect of polymer composite materials on the mechanical properties of sports equipment
谢孟楠1
作者信息
- 1. 山西大学 体育科学研究所,山西 太原 030006;吕梁学院 体育系,山西 吕梁 033001
- 折叠
摘要
体育器材的力学性能设计需要了解拟用材料的机械性能.高分子复合材料的力学性能通常不像传统材料那样容易获得,在这种情况下,可以将微观力学建模与CAD软件结合使用.基于高分子复合材料部件之间部分界面粘附的假设,使用微观力学模型来预测复合材料的弯曲模量.研究发现,部分粘附模型既实用又准确.部分粘附模型通过考虑界面处的"有效剪切值"来解释部件之间的粘附.该模型与玻璃、木材和碳纤维增强聚乙烯的实验数据进行了比较.结果表明,碳纤维的粘附系数在0.1 之间,玻璃纤维为 0.5,木纤维复合材料为 0.8.结果表明,与模拟高分子材料的综合结构相比,使用微观力学模型预测高分子复合材料的力学性能可以减少计算机处理时间和文件大小,且不会降低模拟精度.
Abstract
Sporting equipment requires knowledge of the mechanical properties of proposed materials.The mechanical properties of composite materials are often not as simple to obtain as those of conventional ma-terials,in which case micromechanical modelling could be used in conjunction with CAD software.A mi-cro-mechanical model was used to predict the flexural modulus of composite materials,based on the as-sumption of partial interfacial adhesion between composite components.It was found that the partial adhe-sion model was both practical and consistently accurate.The partial adhesion model accounted for adhe-sion between components by considering an'effective shear value'at the interface.The model was com-pared to experimental data for glass,wood and carbon-fibre reinforced polyethylene.It was shown that the adhesion coefficient ranged between 0.1 for carbon fibre,0.5 for glass fibre and 0.8 for the wood fibre composites.It was shown that using micro-mechanical modelling to predict composite mechanical proper-ties,as opposed to simulating the comprehensive composites structure,computer processing time and file size can be reduced with little compromise in simulation accuracy.
关键词
高分子材料/力学性能/体育器械Key words
polymer materials/mechanical property/sports equipment引用本文复制引用
基金项目
山西省高等学校教学改革与创新项目(J2021725)
山西省博士后创新大赛项目(第一届)()
出版年
2024
NETL
NSTL
万方数据