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首页> 外文期刊>International journal of mechanics and materials in design >Local surface nanocrystallization for buckling-resistant thin-walled structures
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Local surface nanocrystallization for buckling-resistant thin-walled structures

机译：用于抗弯性薄壁结构的局部表面纳米晶体

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摘要

An innovative and new technology on enhancing buckling resistance is established in this work by making use of local surface nanocrystallization to significantly improve the critical loads of thin-walled structures under axial compression loads. By capitalizing new design approaches of local nanocrystallization, critical loads of thin-walled structures can be dramatically increased owing to the marked enhancement of yield stresses of materials within the treated domain. No additional material adhering or structural modification is required in the entire procedure. An optimal design of local surface nanocrystallization is derived by evaluation of critical loads and ultimate buckling deformation of five typical nanocrystallization layouts. Theoretical results show that axial nanocrystallization stripes closed to edges produce the highest critical loads and stable ultimate buckling deformation. Furthermore, an experimental work is presented to validate the optimal design. The result concludes that welding skill is an important influencing factor in the fabrication of such nanocrystallized tubes. Graphic abstract
机译：通过利用局部纳米晶体化在轴向压缩负荷下显着改善薄壁结构的临界载荷，在这项工作中建立了一种创新和新技术。通过利用局部纳米晶体化的新设计方法，由于经处理结构域内的材料的屈服应力显着增强，可以显着地增加薄壁结构的临界负荷。在整个过程中不需要额外的材料粘附或结构修改。通过评估五种典型的纳米晶体化布局的临界载荷和最终屈曲变形来源的局部表面纳米晶的最佳设计。理论结果表明，轴向纳米晶体化条纹封闭到边缘产生最高的临界载荷和稳定的极限屈曲变形。此外，提出了实验工作以验证最佳设计。结果总结说，焊接技能是这种纳米晶体制造中的重要影响因素。图形摘要

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  • 作者

    Xu Xinsheng; Zhao Zhen; Zhou Zhenhuan; Wang Wei; Tong Zhenzhen; Lim C. W.;

  • 作者单位

    Dalian Univ Technol Dept Engn Mech State Key Lab Struct Anal Ind Equipment Dalian Peoples R China|City Univ Hong Kong Shenzhen Res Inst Shenzhen Peoples R China;

    Dalian Univ Technol Dept Engn Mech State Key Lab Struct Anal Ind Equipment Dalian Peoples R China|City Univ Hong Kong Dept Architecture & Civil Engn Kowloon Tat Chee Ave Hong Kong Peoples R China;

    Dalian Univ Technol Dept Engn Mech State Key Lab Struct Anal Ind Equipment Dalian Peoples R China|City Univ Hong Kong Shenzhen Res Inst Shenzhen Peoples R China;

    Dalian Univ Technol Dept Engn Mech State Key Lab Struct Anal Ind Equipment Dalian Peoples R China;

    Dalian Univ Technol Dept Engn Mech State Key Lab Struct Anal Ind Equipment Dalian Peoples R China|Dalian Jiaotong Univ Coll Locomot & Rolling Stock Engn Dalian 116028 Peoples R China;

    City Univ Hong Kong Shenzhen Res Inst Shenzhen Peoples R China|City Univ Hong Kong Dept Architecture & Civil Engn Kowloon Tat Chee Ave Hong Kong Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Buckling-resistance; Critical load; Optimal designs; Surface nanocrystallization; Thin-walled structures;

    机译：屈曲抵抗;临界负荷;最优设计;表面纳米晶体;薄壁结构;

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