An Interval Prediction of Chloroprene Rubber Crack Propagation Characteristics Based on Thermal Accelerated Aging

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...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2023-05, Vol.15 (11), p.2445
Main Authors: Yin, Shengwen, Bai, Yu, Kong, Feng, Wang, Zhonggang, Fang, Congcong
Format: Article
Language:English
Subjects:
Aging (materials)
Air bags
Air springs
Crack initiation
Crack propagation
Fatigue failure
Fatigue life
Identification and classification
Material properties
Mechanical properties
Parameters
Prediction models
Propagation
Properties
Reliability analysis
Research methodology
Rubber
Rubber products
Temperature
Uncertainty
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym15112445