哈尔滨工程大学学报Issue(8)：1000-1005,6.DOI:10.3969/j.issn.1006-7043.201211022
考虑温度效应的泡沫铝静态压缩本构模型
Constitutive model of aluminum foam with temperature effect under quasi-static compression
摘要
Abstract
To investigate the temperature effect of aluminum foam under compression in a static state, compressive experiments of aluminum foam under the temperature ranging from -50℃ to 300℃ were carried out. The mechani-cal behaviors of aluminum foam under different temperatures were analyzed, and the uniaxial stress-strain relation-ships of aluminum foam were measured. Based on the analysis of Liu and Subhash's six-parameter constitutive mod-el, a simplified five-parameter model was proposed. The five-parameter model was used to fit the experimental data at different temperatures, and the fitting results meet the experimental data well. The functions between the revised five parameters and changing temperature were analyzed and determined, and a constitutive model of aluminum foam with temperature effect was established. A further study on extrapolation of the theoretical model is investiga-ted, and the stress-strain relations of aluminum foam at higher temperatures can be obtained. The results show that the aluminum foam experiences three different states of "none compaction","full flow" and "softening" after the yield with the increment of temperature gradually.关键词
泡沫铝/温度效应/静态压缩/本构模型Key words
aluminum foam/temperature effect/quasi-static compression/constitutive model分类
数理科学引用本文复制引用
习会峰,刘逸平,汤立群,刘泽佳,穆建春,杨宝..考虑温度效应的泡沫铝静态压缩本构模型[J].哈尔滨工程大学学报,2013,(8):1000-1005,6.基金项目
国家自然科学基金资助项目（10872070，50908089）；中央高校基本科研业务费专项资金资助项目（2012ZM0088）；华南理工大学亚热带建筑科学国家重点实验室自主研究课题资助项目（2012ZC24）． （）
