An experimental study into uncertainty and scatter in the compressive response of closed cell metallic foams

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures Pub Date : 2025-04-08 DOI:10.1016/j.ijsolstr.2025.113368

Jörg Hohe, Ilir Ajvazi, Lutz Reissig, Carla Beckmann

引用次数: 0

Abstract

Objective of the present study is an experimental investigation of the uncertainty effects in the mechanical properties of closed-cell foams caused by their microstructural disorder. Using an aluminum foam manufactured by a powder-metallurgical route, the correlations between microstructure and mechanical properties are analyzed. The microstructure is characterized in terms of density as well as cell size and geometry in dependence on the individual spatial direction and position, respectively. Subsequently, the mechanical properties are determined in compression experiments, also considering spatial position and testing direction. In order to provide a profound statistical data base, a total of 147 experiments is performed. The results are analyzed with respect to the probability distributions of the individual microstructural and mechanical material properties as well as their correlation.

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闭孔金属泡沫压缩响应的不确定度和散射实验研究

本文的目的是对闭孔泡沫材料的微观结构紊乱对其力学性能的不确定度效应进行实验研究。以粉末冶金法制备的泡沫铝为例，分析了泡沫铝的显微组织与力学性能之间的关系。微观结构的特征是密度以及细胞大小和几何形状分别依赖于个体的空间方向和位置。随后，在压缩实验中确定力学性能，同时考虑空间位置和测试方向。为了提供一个深入的统计数据库，共进行了147次实验。对所得结果进行了微观组织与材料力学性能的概率分布及其相关性分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Solids and Structures 物理-力学

CiteScore

6.70

自引率

8.30%

发文量

405

审稿时长

70 days

期刊介绍： The International Journal of Solids and Structures has as its objective the publication and dissemination of original research in Mechanics of Solids and Structures as a field of Applied Science and Engineering. It fosters thus the exchange of ideas among workers in different parts of the world and also among workers who emphasize different aspects of the foundations and applications of the field. Standing as it does at the cross-roads of Materials Science, Life Sciences, Mathematics, Physics and Engineering Design, the Mechanics of Solids and Structures is experiencing considerable growth as a result of recent technological advances. The Journal, by providing an international medium of communication, is encouraging this growth and is encompassing all aspects of the field from the more classical problems of structural analysis to mechanics of solids continually interacting with other media and including fracture, flow, wave propagation, heat transfer, thermal effects in solids, optimum design methods, model analysis, structural topology and numerical techniques. Interest extends to both inorganic and organic solids and structures.