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Viscoplastic Analysis of a Continuous Cylindrical Opening Surrounded by Volcanic Tuff

机译:火山凝灰岩包围连续圆柱孔的粘塑性分析

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Nuclear blast effect on a deep underground tunnel was studied for quasi-static and quasi-transient loading conditions. A finite element model was developed and used with a two-dimensional constant strain triangle computer code. Viscoplasticity was introduced through the Malvern flow law in conjunction with the Drucker-Prager constitutive equations. The quasi-static results compared favorably with experimental studies. Quasi-transient results can be compared against future experimental work and field tests. (Author)

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