华侨大学学报（自然科学版）2016，Vol.37Issue(5)：531-535,5.DOI:10.11830/ISSN.1000-5013.201605002
新颖波纹截面薄壁圆管的耐撞性
Crashworthiness of Novel Thin-Walled Circular Tube With Novel Corrugated Cross Section
摘要
Abstract
A novel corrugated thin-walled structure was proposed,and the crashworthiness of the structure with different corrugated cross section were studied using numerical analysis method.The research results show that the corrugated structure with same outer cross section and different internal cross sections can change energy absorption rate by approximately 10%.Moreover,the energy absorption rates of corrugated structure with rectangular outer cross section and different internal cross sections are higher than that of round outer cross sections.Meantime,corrugated structures with rectangular outer cross section and round internal cross section have the most excellent energy absorption capacity,34.5% higher than that of round outer cross section and rectangular internal cross section.In addition,the corrugated length has an important influence on crashworthiness of thin-walled structure,and corrugated length of 7.8 mm has better crashworthiness per-formance.Furthermore,compared to traditional thin-walled circular tubes,the tubes with the proposed corru-gated structure reduce peak force by 50.8% if energy absorption is not influenced.关键词
波纹管/薄壁结构/截面/耐撞性/吸能性Key words
corrugated tube/thin-walled structure/cross section/crashworthiness/energy absorption分类
航空航天引用本文复制引用
葛平政,张勇..新颖波纹截面薄壁圆管的耐撞性[J].华侨大学学报（自然科学版）,2016,37(5):531-535,5.基金项目
国家自然科学基金资助项目（51205141）；中国博士后基金特别资助项目（2014T70613）；福建省自然科学基金资助项目（2015J01204）；华侨大学中青年教师培养计划项目 （）
