Micro-structural motivated phenomenological modelling of metal foams: experiments and modelling
Micro-structural motivated phenomenological modelling of metal foams: experiments and modelling
复制标题
金属泡沫的微观结构驱动唯象建模:实验和建模
DOI:
10.1007/s00419-014-0942-y
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发表时间:
2015
影响因子:
2.8
通讯作者:
S. Diebels
中科院分区:
文献类型:
--
作者:
A. Jung;T. Grammes;S. Diebels
Cellular materials like metal foams are bio-inspired materials which exhibit great potential for application in lightweight construction or as kinetic energy absorber. Such cellular materials show a complex micro-structure which significantly affects the macroscopic global properties. Cellular materials exhibit localised deformation expressed in deformation bands under inelastic strain conditions. Engineering with metal foams requires material models which describe the material behaviour properly even for different load cases. In this work, a new modelling approach has been developed which phenomenologically accounts for micro-structural effects by a representative volume element made of several springs. The model is experimentally validated, and its micro-structural motivated parameters are experimentally identified in quasi-static compression tests with unloading cycles. Using digital image correlation, it was possible to connect the micro-structural deformation with the global macroscopic stress–strain behaviour, evaluated locally for the front surface of the specimens.
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DOI:
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发表时间:
2012
期刊:
影响因子:
--
作者:
M. F. Júnior;G. P. Soares;R. A. Angélico;R. B. Canto;V. Tita
通讯作者:
V. Tita
DOI:
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发表时间:
1998
期刊:
影响因子:
--
作者:
R. Gradinger;F. Rammerstorfer
通讯作者:
F. Rammerstorfer
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
R. Jänicke;H. Sehlhorst;A. Düster;S. Diebels
通讯作者:
S. Diebels
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
S. Diebels;A. Geringer
通讯作者:
A. Geringer