A nonlocal theory for brittle fracture |
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Authors: | Cheng Pinsan |
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Institution: | (1) Laboratory of Nonlinear Mechanics of Continuous Media, Institute of Mechanics, Chinese Academy of Sciences, 100080, Beijing |
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Abstract: | In this paper, a nonlocal theory of fracture for brittle materials has been systematically developed, which is composed of
the nonlocal elastic stress fields of Griffith cracks of mode-I, II and III, the asymptotic forms of the stress fields at
the neighborhood of the crack tips, and the maximum tensile stress criterion for brittle fracture. As an application of the
theory, the fracture criteria of cracks of mode-I, II, III and mixed mode I–II, I–III are given in detail and compared with
some experimental data and the theoretical results of minimum strain energy density factor. |
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Keywords: | brittle fracture nonlocal elasticity maximum tensile stress criterion |
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