Solution to Shape Identification Problems in Thermoelastic Fields to Prescribe Von Mises Stress Distributions

Solution to Shape Identification Problems in Thermoelastic Fields to Prescribe Von Mises Stress Distributions
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解决热弹性场中的形状识别问题以规定冯·米塞斯应力分布

DOI:
10.11345/nctam.63.155
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发表时间:
2015
期刊:
Theoretical and applied mechanics Japan
影响因子:
--
通讯作者:
Yukio Katoh
Yukio Katoh
中科院分区:
--
文献类型:
--
作者:
E. Katamine;Yukio Katoh

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本文从强度设计的观点出发,介绍了一种形状识别问题的数值分析方法,给出了热弹性场中各子域上的von Mises应力分布。在子域上的实际von Mises应力分布和规定的分布之间的平方误差积分被用作目标泛函。利用伴随变量法、拉格朗日乘子法和材料导数公式,从理论上推导了形状识别问题的形状梯度。变形的形状识别是使用牵引法,提出了作为一种解决方案的形状优化问题。二维数值分析的结果证实了所提出的方法的有效性。
The present paper introduces a numerical analysis method for the shape identification problem to prescribe von Mises stress distributions on sub-domains in a thermoelastic field from the point of view of strength design. The square error integrals between the actual von Mises stress distributions and the prescribed distributions on the sub-domains are used as an objective functional. The shape gradient of the shape identification problem is derived theoretically using the adjoint variable method, the Lagrange multiplier method, and the formulae of the material derivative. Reshaping for the shape identification is accomplished using a traction method that was proposed as a solution to shape-optimization problems. The validity of the proposed method is confirmed based on the results of a 2D numerical analysis.
3D 粘性流场的形状优化
DOI: --
发表时间: 2009
期刊: Inverse Problems in Science & Engineering Vol. 17, No. 1
影响因子: --
作者:
E. Katamine;Y. Nagatomo;H. Azegami
通讯作者: H. Azegami
DOI: --
发表时间: 2003
期刊: Heat-Transfer, Asian Research 32(3)
影响因子: --
作者:
E.Katamine;H.Azegami
通讯作者: H.Azegami