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This paper estabLishes a finite element model of grinding wheel and the stress analysis is carried out under idLing, normal, and abnormal conditions separately. On idLing condition, the tangential stress is the main failure factors of grinding wheel by the effects of centrifugal force. The stress distribution of grinding wheel on normal conditon is consistent with the abnomal condition's. When working...
At present the forpoling bolts of soil-nailed is widely used. A discrete two-dimensional (2-D) finite element model is developed. The contact behaviors between nails or bolts and soil are simulated by friction contact. The displacement of unstable slope and soil pressure on the forepling bolts are calculated by the method. Then soil-arching effect is inducted to discuss the working of principle of...
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