THERMOVISCOELASTIC MODEL OF SURFACE LAYER TREATMENT WITH VARIABLE VISCOSITY

IF 0.5 4区工程技术 Q4 MECHANICS

Journal of Applied Mechanics and Technical Physics Pub Date : 2024-12-09 DOI:10.1134/S002189442403009X

A. G. Knyazeva

引用次数: 0

Abstract

The behavior of a material under laser surface treatment taking into account melting is described. A Maxwell model accounting for the changes in heat capacity and viscosity with changing temperature and material composition is presented. Based on this model, a model describing the change in the properties of a flat layer material subjected to a moving heat source is developed. An algorithm for the numerical solution of the formulated problem is presented. Examples are given showing the effect of heat loss, coupling, melting, chemical reactions, and their acceleration due to the stress work on the properties of the material.

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变粘度表面层处理的热粘弹性模型

描述了一种材料在激光表面处理下的熔化行为。提出了一个计算热容量和粘度随温度和材料组成变化的麦克斯韦模型。在此基础上，建立了平面层材料在移动热源作用下性能变化的模型。给出了该公式化问题数值解的一种算法。举例说明了热损失、耦合、熔化、化学反应以及由于应力功而引起的化学反应对材料性能的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Applied Mechanics and Technical Physics 物理-力学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.