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Prediction of fatigue crack growth rate of metal based on Bayesian regularized BP neural network
Pages: 433-441
Year: Issue:  4
Journal: Journal of Ship Mechanics

Abstract: 人工神经网络是进行预报裂纹扩展率的一个重要方法.文章针对不同金属的疲劳裂纹扩展速率分别建立贝叶斯正则化BP( Back Propagation)神经网络,将各材料在不同应力比R下的疲劳裂纹扩展速率试验数据分为两部分,一部分用来进行训练网络,另一部分用来测试训练好的网络,检验其泛化能力.将从文献中获取的4种不同金属材料的疲劳试验数据作为算例,来检验网络的性能.计算结果表明贝叶斯正则化BP神经网络不仅...
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