中国机械工程2024，Vol.35Issue(8)：1366-1372,7.DOI:10.3969/j.issn.1004-132X.2024.08.004
恒幅载荷下填充天然橡胶概率疲劳寿命预测模型
Probabilistic Fatigue Life Prediction Model for Filled Natural Rubber under Constant Amplitude Loading
摘要
Abstract
A conditional probability distribution model was proposed to quantify the distribution law of rubber fatigue life under arbitrary strain levels.The uniaxial tensile fatigue tests of rubber un-der different strain levels were carried out.The distribution law of rubber fatigue life was analyzed,and the parameter values of the probability distribution model were determined by a great likelihood estimation method.The least squares method was used to fit the functional relationship between strain level and parameter values of the probability distribution model,and then the conditional probability distribution model was established.The rubber fatigue reliability assessment was carried out,and the rubber P-ε-N model was established.The validity of the rubber P-ε-N model was verified by compari-son with the measured lifetimes.关键词
橡胶/疲劳寿命/概率分布/P-ε-N模型/可靠度Key words
rubber/fatigue life/probability distribution/P-ε-N model/reliability分类
化学化工引用本文复制引用
刘湘楠,许靖伟..恒幅载荷下填充天然橡胶概率疲劳寿命预测模型[J].中国机械工程,2024,35(8):1366-1372,7.基金项目
国家自然科学基金(52175084) （52175084）
