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首页> 外文期刊>Acta Mechanica >Heat generation in plane strain compression of a thin rigid plastic layer
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Heat generation in plane strain compression of a thin rigid plastic layer

机译:薄的刚性塑料层在平面应变压缩中​​产生的热量

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This paper presents a theoretical investigation into heat generation in the continued quasi-static plane strain compression of a thin metal strip between two rigid, parallel perfectly rough dies. The strip material is rigid perfectly plastic. The length of the dies is supposed to be much larger than the current strip thickness. The plastic work rate approaches infinity in the vicinity of perfectly rough friction surfaces. Since the plastic work rate is involved in the heat conduction equation, this significantly adds to the difficulties of solutions of this equation. In particular, commercial finite element packages are not capable of solving such boundary value problems. The present approximate solution is given in Lagrangian coordinates. In this case, the original initial/boundary value problem reduces to the standard second initial/boundary value problem for the nonhomogeneous heat conduction equation. Therefore, the Green's function is available in the literature. An example is presented to illustrate the general solution.
机译:本文介绍了在两个刚性,平行,完全粗糙的模具之间对薄金属带进行连续的准静态平面应变压缩过程中产生热量的理论研究。条带材料是完全刚性的塑料。模具的长度应该比当前的带材厚度大得多。在完全粗糙的摩擦表面附近,塑性加工速率接近无穷大。由于热传导方程涉及塑性功率,因此大大增加了求解该方程的难度。特别是,商业有限元软件包不能解决这种边值问题。本近似解以拉格朗日坐标给出。在这种情况下,原始的初始/边界值问题可简化为非均匀热传导方程的标准第二初始/边界值问题。因此,格林函数在文献中可用。给出一个例子来说明一般解决方案。

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