Evaluation and prediction of the effect of load frequency on the wear properties of pre-cracked nylon 66
作者机构：Mechanical Engineering DepartmentFaculty of EngineeringAlexandria UniversityAlexandriaEgypt
出 版 物：《Friction》 (摩擦（英文版）)
年 卷 期：2014年第2卷第3期
页 面：240-254页
核心收录：
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：nylon wear surface defects wear model
摘 要：Nylon 66 has been widely used for numerous mechanical applications but its sliding wear mechanisms are not fully *** particular,limited attention has been paid to the generation of fatigue surface cracks under constant and cyclic load *** present work focuses on the effect of load frequency on the wear behavior of a polymer with surface defects in dry sliding *** defects were imposed vertical deep cracks perpendicular to the direction of *** studies were conducted against a steel counterface at constant loads,and in cyclic loads at different *** neural network(ANN)models were examined to identify one that optimally simulates wear under the applied load *** cracks were found to have a remarkable adverse effect on the wear behavior of the *** wear rates were influenced by the number of cracks as well as the type of applied ***,results suggest that the presence of surface cracks is attributable to the section B wear ***,acceptable predicted wear rate values were obtained by introducing the ANN wear model.
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