|
| Comparison of Precision of Arrhenius Formula and Environmental Action Dynamics on Compressed Rubber |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.03.020 |
| KeyWord:environmental action dynamics Arrhenius formula permanent deformation rate under compression fluorosilicone rubber accelerated test optimized algorithm |
| Author | Institution |
| FENG Xian-he |
Southwest Institute of Technology and Engineering, Chongqing , China |
| WEI Xiao-qin |
Southwest Institute of Technology and Engineering, Chongqing , China |
| YANG Wan-jun |
Southwest Institute of Technology and Engineering, Chongqing , China |
| HE Jian-xin |
Southwest Institute of Technology and Engineering, Chongqing , China |
| LI Di-fan |
Southwest Institute of Technology and Engineering, Chongqing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to accurately describe the change law of permanent deformation rate of compressed rubber and precisely evaluate the service life of compressed rubber. The differential equation of permanent deformation rate of compressed rubber was established by the theory of environmental action dynamics. The general solution of the differential equation of permanent deformation rate of compressed rubber was obtained by solving the differential equation. Then, with fluorosilicone rubber as an example, the test data at 100, 125, 150, 175 and 200 ℃ were obtained through high temperature accelerated test. The permanent deformation rate model of compressed fluorosilicone rubber was established by the general solution of environmental action dynamics and Arrhenius formula. Finally, the natural environment test data for 3 and a half years and the model were compared. The maximum error between the permanent deformation rate model of compressed fluorosilicone rubber established by the theory of environmental action dynamics and the natural environment test data for 3 and a half years was 3.32%. The maximum error between the model established by Arrhenius formula and the natural environment test data for 3 and a half years was 14%. The Arrhenius formula is only applicable to the change of material characteristics without environmental action or fixed environmental action. There is a clear environmental action term σ in the environmental action kinetic equation and it is applicable to the description of the change law of material characteristics under the action of complex environment. |
| Close |
|
|
|