Dynamic Impact of High-Density Aluminum Foam | |
Peng Q(彭青)1,2; Xie JJ(谢季佳)1,2; Ma HS(马寒松)1,2; Ling, X3; Liu XM(刘小明)1,2; Wei YG(魏悦广)4 | |
发表期刊 | ACTA MECHANICA SOLIDA SINICA |
2022-04 | |
卷号 | 35期号:2页码:198-214 |
ISSN | 0894-9166 |
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. |
关键词 | High density aluminum Foam Deshpande-Fleck model Finite element method Impact analysis Plastic wave |
DOI | 10.1007/s10338-021-00256-6 |
收录类别 | SCI ; EI ; CSCD |
语种 | 英语 |
WOS记录号 | WOS:000682418500001 |
关键词[WOS] | COMPRESSIVE STRENGTH PROPERTIES ; MULTIAXIAL YIELD SURFACE ; PRINCIPAL-STRESS SPACE ; VOID GROWTH ; PART II ; CONSTITUTIVE MODELS ; CORRUGATED TUBES ; GLOBAL TOPOLOGY ; METALLIC FOAMS ; BEHAVIOR |
WOS研究方向 | Materials Science ; Mechanics |
WOS类目 | Materials Science, Multidisciplinary ; Mechanics |
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] |
项目资助者 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences |
论文分区 | Q3 |
力学所作者排名 | 1 |
RpAuthor | Liu, X. |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/87180 |
专题 | 非线性力学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.China Univ Geosci, Sch Engn & Technol, Beijing 100083, Peoples R China; 4.Peking Univ, Coll Engn, Beijing 100871, 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,2022,35,2,:198-214. |
APA | Peng Q,Xie JJ,Ma HS,Ling, X,Liu XM,&Wei YG.(2022).Dynamic Impact of High-Density Aluminum Foam.ACTA MECHANICA SOLIDA SINICA,35(2),198-214. |
MLA | Peng Q,et al."Dynamic Impact of High-Density Aluminum Foam".ACTA MECHANICA SOLIDA SINICA 35.2(2022):198-214. |
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