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首页> 外文期刊>Journal of engineering materials and technology >Thermal Phase Transformation and Residual Stress Estimation of Multi-Layer Materials for Cylindrical or Flat Shape
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Thermal Phase Transformation and Residual Stress Estimation of Multi-Layer Materials for Cylindrical or Flat Shape

机译：圆柱或扁平形状多层材料的热相变和残余应力估计

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The estimation of the thermal, phase transformation, and residual stresses in multilayer materials during arbitrary loading is a complex problem, which is important in many manufacturing processes. This paper describes an analytical method to predict these stresses using classic elasticity/plasticity theories under cylindrical coordinates. The method is based on the well-established analysis of an inclusion embedded into a matrix. The multi-layer problem is treated in increments of two layers at a time in a straightforward manner. The computational time required for two sample quenching problems and one sample surface grinding problem was less than half minute each on a PC. Both the thermal stress and residual stress estimation results agree well with the FEM results, especially in the limited depth of the surface. This program is not limited to quenching and grinding problems. It can be applied to many manufacturing processes for predicting in-process stress and residual stress of work-pieces in order to optimize the processes.
机译：任意加载过程中多层材料的热，相变和残余应力的估计是一个复杂的问题，这在许多制造过程中都很重要。本文介绍了一种使用经典弹性/塑性理论在圆柱坐标下预测这些应力的分析方法。该方法基于对嵌入到矩阵中的内含物的完善分析。多层问题可以一次简单地以两层为增量进行处理。在PC上，两个样品淬火问题和一个样品表面研磨问题所需的计算时间均少于半分钟。热应力和残余应力估算结果都与有限元分析结果非常吻合，特别是在有限的表面深度上。该程序不限于淬火和磨削问题。它可以应用于许多制造过程，以预测工件的过程中应力和残余应力，从而优化过程。

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