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Dynamic Impact of High-Density Aluminum Foam

文献类型：期刊论文

作者Peng Q(彭青)3,4; Xie JJ(谢季佳)3,4; Ma HS(马寒松)3,4; Ling, X2; Liu XM(刘小明)3,4; Wei YG(魏悦广)1; Ma HS(马寒松); Wei YG(魏悦广); Xie JJ(谢季佳); Peng Q(彭青)
刊名ACTA MECHANICA SOLIDA SINICA
出版日期2021-08-06
页码17
关键词High density aluminum Foam Deshpande-Fleck model Finite element method Impact analysis Plastic wave
ISSN号0894-9166
DOI10.1007/s10338-021-00256-6
通讯作者Liu, X.(xiaomingliu@imech.ac.cn)
英文摘要High-density aluminum foam can provide higher stiffness and absorb more energy during the impact Obtaining the constitutive law of such foam requires tri-axial tests with very high pressure, where difficulty may arise because the hydrostatic pressure can reach more than 30MPa. In this paper, instead of using tri-axial tests, we proposed three easier tests-tension, compression and shear to obtain the parameters of constitutive model (the Deshpande-Fleck model). To verify the constitutive model both statically and dynamically, we carried out additional triaxial tests and direct impact tests, respectively. Based on the derived model, we performed finite element simulation to study the impact response of the present foam. By dimensional analysis, we proposed an empirical equation for a non-dimensional impact time (t) over bar (d), the impact time divided by the time required for plastic wave travelling from the impact surface to the bottom surface, to determine the deformation characteristic of the aluminum foam after impact. For the case with (t) over bar (d) <= 1, the deformation tends to exhibit a shock-type characteristic, while for the case with (t) over bar (d) > 5, the deformation tends to exhibit an upsetting-type characteristic.
分类号Q3
WOS关键词COMPRESSIVE STRENGTH PROPERTIES ; MULTIAXIAL YIELD SURFACE ; PRINCIPAL-STRESS SPACE ; VOID GROWTH ; PART II ; CONSTITUTIVE MODELS ; CORRUGATED TUBES ; GLOBAL TOPOLOGY ; METALLIC FOAMS ; BEHAVIOR
资助项目National Natural Science Foundation of China[11772334] ; National Natural Science Foundation of China[11890681] ; Youth Innovation Promotion Association CAS[2018022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501]
WOS研究方向Materials Science ; Mechanics
语种英语
WOS记录号WOS:000682418500001
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences
其他责任者Liu, X.
源URL[http://dspace.imech.ac.cn/handle/311007/87179]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Peking Univ, Coll Engn, Beijing 100871, Peoples R China
2.China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China;
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
4.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Peng Q,Xie JJ,Ma HS,et al. Dynamic Impact of High-Density Aluminum Foam[J]. ACTA MECHANICA SOLIDA SINICA,2021:17.
APA 彭青.,谢季佳.,马寒松.,Ling, X.,刘小明.,...&Liu XM.(2021).Dynamic Impact of High-Density Aluminum Foam.ACTA MECHANICA SOLIDA SINICA,17.
MLA 彭青,et al."Dynamic Impact of High-Density Aluminum Foam".ACTA MECHANICA SOLIDA SINICA (2021):17.

入库方式： OAI收割

来源：力学研究所

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