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Failure analysis of crush hammers based on damage fracture energy |
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| Authors: | HUANG Jun-ping ZHOU Hong-yi BAI Zhan-wei YIN Yi-zhong |
| Institution: | 1. College of Resources and Environmental Science, Chongqing University, Chongqing 400030, P. R. China;Electromechanical Engineering, Chongqing Vocational Institute of Engineering, Chongqing 400037, P. R. China 2. Electromechanical Engineering, Chongqing Vocational Institute of Engineering, Chongqing 400037, P. R. China;College of Material Science and Engineering, Chongqing University, Chongqing 400030, P. R. China 3. Electromechanical Engineering, Chongqing Vocational Institute of Engineering, Chongqing 400037, P. R. China;College of Mechanical Engineering, Chongqing University, Chongqing 400030, P. R. China 4. Ganbazi Coal Preparation Plant, Chongqing Nantong Mining .Ltd., Chongqing 400802, P. R. China |
| Abstract: | To prolong the life-span of crush hammers in the pyrite concentrate workplace of Ganbazi Coal Preparation Plant of Chongqing Nantong Mining Ltd., we used a progressive damage constitutive model based on the ductile and shear damage fracture energy to analyze the hammer wear failure caused by the impact and abrasion on the hammer surface by pyrite, and carried out simulation analysis with the explicit algorithm on hammer leftovers from the plant during the process of coarser pyrite comminution. The simulatio... |
| Keywords: | hammer wear austenitic manganese steel work-hardening constitutive model progressive damage damage criterion |
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