天然橡胶
材料科学
区间(图论)
氯丁二烯
断裂力学
复合材料
结构工程
阿累尼乌斯方程
弹簧(装置)
不确定性传播
加速老化
计算机科学
数学
工程类
活化能
算法
有机化学
化学
组合数学
作者
Shengwen Yin,Yu Bai,Feng Kong,Zhonggang Wang,Chong Fang Ma
出处
期刊:Polymers
[MDPI AG]
日期:2023-05-25
卷期号:15 (11): 2445-2445
标识
DOI:10.3390/polym15112445
摘要
Thermo-oxidative aging plays an important role in changing the properties of rubber materials; it significantly decreases the fatigue life of air spring bags and further causes safety hazards. However, due to the great uncertainty of rubber material properties, an effective interval prediction model has not been established considering the effect of aging on airbag rubber properties. To solve the problem, this study proposes an interval parameter correlation model that can more accurately describe rubber crack propagation characteristics by considering material uncertainty. Furthermore, an aging prediction model of the rubber crack propagation characteristic region is established based on the Arrhenius equation. The effectiveness and accuracy of the method are verified by comparing the test and prediction results under the temperature spectrum. The method can be used to determine the variations in the interval change of the fatigue crack propagation parameters during rubber aging and can guide fatigue reliability analyses of air spring bags.
科研通智能强力驱动
Strongly Powered by AbleSci AI