A thermomechanical interface element formulation for finite deformations

A thermomechanical interface element formulation for finite deformations
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有限变形的热机械界面单元公式

DOI:
10.1007/s00466-013-0862-7
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发表时间:
2013
影响因子:
4.1
通讯作者:
Kaliske
Kaliske
中科院分区:
工程技术2区
文献类型:
--
作者:
Fleischhauer;Behnke;Kaliske

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界面层的热和机械描述所提出的方法。温度演变和机械载荷的组合显著影响变形和热行为。一个一致的框架,来自原则的热力学定律和平衡方程。该方法被纳入有限元分析框架,其中未知的温度场和位移场,例如,通过牛顿型的解决方案。推导出的有限元方程线性化,并给出了一个完全耦合的界面元制定关于热机械残差和刚度。裂纹扩展的主要机理是裂纹两侧的粘结。这些键可以具有不同的性质,这取决于主体材料。他们组成描述在所提出的方法中的牵引力和热量的传输。数值例子,以证明预测能力的热机械界面元素。
Interfacial layers are thermally and mechanically described in the presented approach. The combination of temperature evolution and mechanical loading influences significantly the deformation and thermal behavior. A consistent framework is derived from principle thermodynamical laws and balance equations. The approach is incorporated in the finite element analysis framework, wherein the unknown temperature- and displacement fields are obtained, e.g. by a Newton-type solution scheme. The derived finite element equations are linearized and a fully coupled interface element formulation is given with respect to thermomechanical residuals and stiffnesses. Bonds between the opening crack flanks are the main mechanisms of the delamination process. These bonds can be of different nature, depending on the bulk material. They are constitutively described in the presented approach in terms of transmission of tractions and heat. Numerical examples are shown in order to demonstrate the predictive capabilities of the thermomechanical interface element.
橡胶和玻璃聚合物的微观宏观方法:基于微机械的预测模型和模拟
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
S. Göktepe
通讯作者: S. Göktepe
DOI: 10.1016/j.jmps.2008.06.002
发表时间: 2008-10
影响因子: 5.3
作者:
M. Fagerström;R. Larsson
通讯作者: M. Fagerström;R. Larsson
DOI: 10.1201/b11687-18
发表时间: 2011
影响因子: 5.4
作者:
R. Behnke;H. Dal;M. Kaliske
通讯作者: M. Kaliske