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金属疲劳问题的研究已有一百多年的历史,但至今尚无一个可靠的、精确的理论,以解释金属疲劳过程的各种现象和本质.在疲劳过程中出现的现象和主要问题有:在循环载荷作用下,何以应力远低于
Metal fatigue has been studied for more than one hundred years, but so far there is no reliable and accurate theory to explain the phenomena and the essence of the metal fatigue.The phenomena and main problems in the fatigue process include: Under cyclic loading, the stress is far below