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1. A new form of Strain Gradient Elasticity | |||
Zhao Bing,Zheng Yingren,Yan Xiaoqiang,Song Yi | |||
Mechanics 20 April 2009 | |||
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Abstract:Following the definition of internal characteristic length vector, the strain energy density is postulated to depend on both the strain tensor and the strain gradient tensor. A new form of strain gradient elasticity constitutive was derived directly from the strain energy density expansion method at the initial state. When internal characteristic length vector equals to zero, the expressions can be degenerated to the classical elastic theory. Based on the principle of virtual power, the variational principle, boundary condition and Finite Element Formulation of the new form of strain gradient elasticity are given. | |||
TO cite this article:Zhao Bing,Zheng Yingren,Yan Xiaoqiang, et al. A new form of Strain Gradient Elasticity[OL].[20 April 2009] http://en.paper.edu.cn/en_releasepaper/content/31553 |
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