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| 橡胶材料疲劳试验机的设计和疲劳寿命模型的建立 |
| Design of Fatigue-testing Machine for Rubber Material and Establishment of Fatigue Life Model |
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| DOI： |
| 中文关键词: 橡胶材料 疲劳试验机 疲劳寿命 裂纹扩展 撕裂能 |
| 英文关键词: rubber material fatigue-testing machine fatigue life crack propagation tearing energy |
| 基金项目: |
| 中图分类号:TQ330.4＋92 |
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| 中文摘要: |
| 进行橡胶材料疲劳试验机的设计和疲劳寿命模型的建立。基于疲劳裂纹扩展和撕裂能理论以及依据GB/T1688—2008研制的橡胶材料疲劳试验机由执行机构、数据采集系统和控制系统构成，用于橡胶材料疲劳试验和破坏试验，可以分别测得橡胶材料裂纹扩展速度及撕裂能、破坏撕裂能。采用Yeoh模型作为本构模型，以有限元仿真分析计算不同应变下的撕裂能，得到裂纹扩展速度与撕裂能关系，而建立的橡胶材料疲劳寿命模型可以用于预测组成复杂的橡胶材料的疲劳寿命。 |
| 英文摘要: |
| The fatigue-testing machine for rubber material was designed，and the fatigue life model was established. Based on theory of crack propagation and the tearing energy，and referencing to national standard GB/T 1688—2008，the fatigue-testing machine for rubber material had been developed. This machine was consisting of actuator，data acquisition system and control system，it was used for rubber material fatigue test and destructive test，and crack propagation rate，tearing energy and destructive energy were obtained. When Yoeh model was adopted as constitutive model，and the tearing energy of the rubber material under different strain was calculated by the finite element method. Then the relationship between crack propagation rate and tear energy was obtained，and fatigue life model was established. This model could be used to predict the life of rubber material with complex ingredients. |
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