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首页> 外文期刊>Materials Science and Engineering >Experimental and analytical study on the deformation response of closed-cell Al foam panels to local contact damage-Mechanical properties extraction
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Experimental and analytical study on the deformation response of closed-cell Al foam panels to local contact damage-Mechanical properties extraction

机译：闭孔泡沫铝板对局部接触损伤的变形响应的实验和分析研究-力学性能提取

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摘要

The present paper studies the deformation response of closed-cell aluminium foam panels (ALPORAS brand) to local contact damage, experimentally simulated by indentation tests with indenters of various shapes and sizes. The foam density varies between 0.184 g/cm~3 and 0.351 g/cm~3; panels of various thicknesses are also considered. Analytical models are developed to estimate the crushing force, the tearing resistance, and the shearing resistance in indentation with cylindrical and spherical indenters. Of particular interest are the failure mechanisms, the foam ligament tear energy and the foam shear strength in all indentation types. The tear energy, as well as the shear strength, is deduced by fitting the experimental load-displacement curves and using the developed analytical models. The influence of the panel thickness, indenter shape and size, and foam microstructure on the deformation mechanisms and material properties is also discussed.
机译：本文研究了闭孔泡沫铝板（ALPORAS品牌）对局部接触损伤的变形响应，并通过各种形状和尺寸的压头进行压痕测试，通过实验进行了模拟。泡沫密度在0.184g / cm〜3和0.351g / cm〜3之间变化；还考虑了各种厚度的面板。开发了分析模型以估计在使用圆柱形和球形压头的压痕中的压碎力，抗撕裂性和抗剪切性。在所有压痕类型中，破坏机理，泡沫韧带撕裂能和泡沫剪切强度特别令人关注。通过拟合实验载荷-位移曲线并使用已开发的分析模型，可以推导出撕裂能以及抗剪强度。还讨论了面板厚度，压头形状和尺寸以及泡沫微结构对变形机理和材料性能的影响。

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  • 来源
    《Materials Science and Engineering》 |2010年第22期|P.6033-6045|共13页
  • 作者

    Tania Vodenitcharova; Maizlinda Idris; MarkHoffman;

  • 作者单位

    School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia ARC Centre of Excellence for Design in Light Metals, Department of Materials Engineering, Monash University, Clayton, Victoria 3800, Australia;

    School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia ARC Centre of Excellence for Design in Light Metals, Department of Materials Engineering, Monash University, Clayton, Victoria 3800, Australia Faculty of Mechanical and Manufacturing Engineering, University of Tun Hussein Onn Malaysia, 86400 Parit Raja Bam Pahatjohor. Malaysia;

    School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia ARC Centre of Excellence for Design in Light Metals, Department of Materials Engineering, Monash University, Clayton, Victoria 3800, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    metal foams; mechanical characterization; indentation; plane deformation; axisymmetric deformation;

    机译：金属泡沫;机械特性缩进;平面变形轴对称变形;

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