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Quasistatic deformation analysis of melt-based molded die-cast open-cell aluminum alloy foam
Archives of Civil and Mechanical Engineering ( IF 4.4 ) Pub Date : 2022-11-11 , DOI: 10.1007/s43452-022-00562-x
Mohammad Shahid Raza , Susmita Datta , Partha Saha

The metal foams behavior significantly depends on the method applied for its manufacturing. Present work investigates the mechanical quasistatic three-point and compressive deformation behavior of molded die-cast open-cell Aluminum Alloy foam (OCAF). Different span lengths and loading velocities were selected for the experimentation. The deformation behavior of the OCAF was studied and the effect was correlated with different theories available for foam deformation. The plastic behavior of OCAF was also studied using a compression loading–unloading experiment at different stress and strain values. Microstructural study and phase analysis were carried out at the cell wall surfaces using fractography to establish the cause of brittle failure dominant in the foam. Further, micro-CT analysis was used to study the cell deformation in the bulk material and the role of micropores and macro-pores.



中文翻译:

熔体模压铸开孔铝合金泡沫体的准静态变形分析

金属泡沫的行为很大程度上取决于其制造方法。目前的工作是研究模铸压铸开孔铝合金泡沫 (OCAF) 的机械准静态三点和压缩变形行为。选择不同的跨度长度和加载速度进行实验。研究了 OCAF 的变形行为,并将其效果与可用于泡沫变形的不同理论相关联。还使用不同应力和应变值下的压缩加载-卸载实验研究了 OCAF 的塑性行为。使用断口法在孔壁表面进行微观结构研究和相分析,以确定泡沫中占主导地位的脆性破坏的原因。更远,

更新日期:2022-11-11
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