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Novel materials like composite metal foamsComposite Metal Foam (CMF) can provide high strength-to-densityDensity ratio and enhanced energy absorptionEnergy absorption capabilities to mitigate puncture and bolster structural integrity of HAZMATHAZMAT tank cars during potential derailments. This work summarizes quasi-static numerical model of multi-phase steel-steel CMF, incorporating interactions between embedded hollow metal spheres with entrapped fluid (air) within a metallic matrix, and provides a glimpse of the extension of this approach to dynamic impact scenarios in future works. The metallic components and the air trapped within spheres are modeled using solid Lagrangian elements and smooth particle hydrodynamicsSmooth Particle Hydrodynamics (SPH), respectively and the fluid–solid interactions are implemented using contact definitions. The numerical model for quasi-static compression reports an average percentage error of 2.2% for plateau region and a percentage error of 5.9% for densification strain when compared with experimentally obtained data.

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Explicit Finite Element Model of Composite Metal Foam’s Mechanical Response During Quasi-static and Dynamic Compression

  • 会议论文

  • 发表日期：

    2025年

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  • Aman Kaushik,
  • Afsaneh Rabiei

摘要

Novel materials like composite metal foamsComposite Metal Foam (CMF) can provide high strength-to-densityDensity ratio and enhanced energy absorptionEnergy absorption capabilities to mitigate puncture and bolster structural integrity of HAZMATHAZMAT tank cars during potential derailments. This work summarizes quasi-static numerical model of multi-phase steel-steel CMF, incorporating interactions between embedded hollow metal spheres with entrapped fluid (air) within a metallic matrix, and provides a glimpse of the extension of this approach to dynamic impact scenarios in future works. The metallic components and the air trapped within spheres are modeled using solid Lagrangian elements and smooth particle hydrodynamicsSmooth Particle Hydrodynamics (SPH), respectively and the fluid–solid interactions are implemented using contact definitions. The numerical model for quasi-static compression reports an average percentage error of 2.2% for plateau region and a percentage error of 5.9% for densification strain when compared with experimentally obtained data.