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首页> 外文期刊>International Journal of Heat and Mass Transfer >Effect of laser processing on three dimensional thermodynamic analysis for HSLA rectangular steel plates
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Effect of laser processing on three dimensional thermodynamic analysis for HSLA rectangular steel plates

机译：激光加工对HSLA矩形钢板三维热力学分析的影响

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摘要

Three-dimensional thermodynamic analysis of simply supported high strength and low alloy (HSLA) rectangular steel plates under laser shock processing are carried out in this paper. Three-dimensional transient temperature field of the laser shock processing the rectangular HSLA steel plate is solved by the method of separation of variables. Meanwhile, the displacement and stress fields are derived by using the state-space method. It could be found that some parameters such as laser moving speed and thickness to length ratio do not affect the temperature field only, but also have great influences on the displacement and stress field. The closer the laser from the center of plate is, the greater is the revulsion amplitude of HSLA steel plate's temperature on laser area. The vibration frequency of HSLA steel plate is proportional to the increasing of laser moving speed. The thickness to length ratio affects HSLA plate's displacement and stress, but the variation law of in-plane displacement U~* is not consistent with other displacement and stress components. It can be observed that applied loading form affects the deflection greatly, both on the order of magnitude and displacement shape.
机译：本文进行了简单支撑的高强度低合金矩形钢板在激光冲击下的三维热力学分析。通过变量分离的方法，解决了矩形矩形HSLA钢板激光冲击加工的三维瞬态温度场。同时，利用状态空间法导出了位移场和应力场。可以发现，诸如激光移动速度和厚度与长度之比之类的一些参数不仅影响温度场，而且对位移和应力场也有很大影响。激光离板中心越近，HSLA钢板温度在激光区域上的反射幅度越大。 HSLA钢板的振动频率与激光移动速度的增加成正比。厚度与长度之比会影响HSLA板的位移和应力，但面内位移U〜*的变化规律与其他位移和应力分量不一致。可以观察到，施加的载荷形式对变形的影响很大，无论是在数量级还是在位移形状上。

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  • 作者

    Hao-Jie Jiang; Hong-Liang Dai;

  • 作者单位

    State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China,Department of Engineering Mechanics, College of Mechanical & Vehicle Engineering, Hunan University, Changsha 410082, China;

    State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China,Key Laboratory of Manufacture and Test Techniques for Automobile Parts, Ministry of Education, Chongqing University of Technology, Chongqing 400054, China,Department of Engineering Mechanics, College of Mechanical & Vehicle Engineering, Hunan University, Changsha 410082, 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

    HSLA plate; Laser shock processing; Thermodynamic analysis; State-space method;

    机译：HSLA板;激光冲击处理;热力学分析;状态空间法;

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