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Volume 21 Issue 4
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Pan Yishan, Xu Bingye, Wang Mingyang. The study of plastic strain gradient and class Ⅱ behavior of rock[J]. Chinese Journal of Geotechnical Engineering, 1999, 21(4): 471-474.
Citation: Pan Yishan, Xu Bingye, Wang Mingyang. The study of plastic strain gradient and class Ⅱ behavior of rock[J]. Chinese Journal of Geotechnical Engineering, 1999, 21(4): 471-474.
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The study of plastic strain gradient and class Ⅱ behavior of rock

  • Liaoning Technical University 123000 Tsinghua University 100084 Nanjing Engineering College 210007

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  • Published Date: July 22, 1999
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  • In this paper the theory of plastic strain gradient has been put forward and thereby the problem is discussed on whether the deformational behaviour of the rock of class Ⅱ is exist. It has been proved that the existence of the deformational behaviour for the rock of class Ⅱ is conditional, that is , when 1-2 π EλlL>0 the behaviour manifests itself. The influence of the height of rock specimen, the descending modulus λ of rock and the internal length l on the class Ⅱ behavior has been discussed.
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