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首页> 外文期刊>Thin-Walled Structures >Splitting and curling collapse of metal foam core square sandwich metal tubes: Experimental and theoretical investigations
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Splitting and curling collapse of metal foam core square sandwich metal tubes: Experimental and theoretical investigations

机译：金属泡沫核心方形三明治金属管的分裂和卷曲塌陷：实验和理论研究

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摘要

Axial splitting and curling collapse of square sandwich metal tubes with metal foam core is investigated analytically and experimentally. The square sandwich metal tube split axially and curl outward along prefabricated cracks. Axial compressive tests of square sandwich metal tubes with prefabricated cracks are conducted and deformation modes are observed. An analytical model for axial splitting and curling behavior of square sandwich metal tube considering plastic bending, crack tearing, curling, foam compression, friction is proposed. It is demonstrated the analytical predictions are in good agreement with experimental results. Influences of foam thickness, tube thickness, die angle, prefabricated crack length, and foam strength are of vital importance to axial splitting and curling of square sandwich metal tube.
机译：分析和实验研究了带金属泡沫芯的方形夹层金属管的轴向分裂和卷曲坍塌。 方形夹层金属管沿预制裂缝向外分开并卷曲。 进行预制裂缝的方形夹层金属管的轴向压缩试验，观察到变形模式。 考虑塑料弯曲，裂纹撕裂，卷发，泡沫压缩，提出了一种轴向分裂和卷曲行为的分析模型。 据证明，分析预测与实验结果吻合良好。 泡沫厚度，管厚度，模具角度，预制裂纹长度和泡沫强度对轴向分裂和卷曲的平方夹心金属管的影响是至关重要的。

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  • 来源
    《Thin-Walled Structures》 |2021年第12期|108346.1-108346.10|共10页
  • 作者

    Zhang Jianxun; Guo Haoyuan; Du Jinlong; Yuan Hui; Zhu Yuqing; Qin Qinghua;

  • 作者单位

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

    Xi An Jiao Tong Univ Sch Aerosp Engn State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Square sandwich tube; Splitting and curling; Energy absorption;

    机译：方形三明治管;分裂和卷曲;能量吸收;

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