| Research Progress of Fatigue Life of Rubber Engine Mount |
| Received:March 11, 2020 Revised:March 11, 2020 |
| DOI：10.12136/j.issn.1000-890X.2020.06.0475 |
| Key Words: rubber engine mount；fatigue life；crack initiation approach；crack propagation approach； prediction model；equivalent stress |
| Author Name | Affiliation | E-mail | | LIU Taikai* | GAC Automotive Research & Development Center | liutaikai@gacrnd.com | | LIU Mengyan | GAC Automotive Research & Development Center | |
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| Abstract: |
| In this paper，for the research of fatigue life prediction，the methods of fatigue life prediction of rubber materials and rubber components at home and abroad were reviewed. The methods of fatigue life prediction of rubber mount were mainly divided into crack initiation approach and crack propagation approach. In the crack initiation approach，the rubber fatigue life prediction model which used the equivalent stress as the damage parameter was more suitable for the prediction of the fatigue life of rubber mount，compared with the one using strain and strain energy density as parameters. It was found that the rubber fatigue life prediction model established by crack propagation approach could well predict the fatigue life of rubber mount. Compared with the crack initiation approach，the crack propagation approach could predict the crack direction of rubber mount，which had a better guiding significance for engineering. |
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