橡胶材料疲劳寿命预测研究
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摘要
为了确定机械制造用橡胶材料的疲劳寿命,采用试验测定与理论分析相结合的方法对其展开研究。使用疲劳试验机对带有预制切口的哑铃型橡胶试件进行疲劳试验,确定其疲劳试验寿命;采用断裂力学的方法预测其理论疲劳寿命。通过对比分析试验疲劳寿命和预测寿命的相关性,确定用裂纹扩展法预测橡胶材料疲劳寿命是可行的。
In order to determine the fatigue life of rubber materials for machinery manufacturing,it combines the combination method of experimental with theoretical analysis,carries out the fatigue test on a dumbbell rubber specimen with prefabricated incision,obtains fatigue life.Based on the extension method and fracture theory mechanics,it predicts the fatigue life.It compares the correlation between test life and prediction life,determines the feasibility of the crack propagation method for predict fatigue life of rubber materials.
In order to determine the fatigue life of rubber materials for machinery manufacturing,it combines the combination method of experimental with theoretical analysis,carries out the fatigue test on a dumbbell rubber specimen with prefabricated incision,obtains fatigue life.Based on the extension method and fracture theory mechanics,it predicts the fatigue life.It compares the correlation between test life and prediction life,determines the feasibility of the crack propagation method for predict fatigue life of rubber materials.
引文
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[7]LUO R K,WU W X.Fatigue failure analysis of anti-vibration rubber spring[J].Engineering Failure Analysis,2006,13:110-116.
[8]SAINTIER N,CAILLETAUD G,PIQUES R.Crack initiation and propagation under multiaxial fatigue in a natural rubber[J].International Journal of Fatigue,2006,28:530-439.
[2]毕莲英.橡胶静态和动态试验疲劳性能之特点[J].世界橡胶工业,2006(9):37-39.
[3]王明起.螺杆泵定子力学特性及疲劳寿命研究[D].大庆:东北石油大学,2015.
[4]汪艳萍.橡胶材料多轴疲劳寿命及微观结构研究[D].天津:天津大学,2007.
[5]GENT A N,LINDLEY P B,THOMAS A G.Cut growth and fatigue of rubbers.I.The relationship between cut growth and fatigue[J].Journal of Applied Polymer Science,1964,8(1):455-466.
[6]LUO R K,COOK P W,WU W X,et al.An approach to evaluate the service life of rubber springs used in rail vehicle suspensions[J].Proc,Instn Mech.Engrs(Part F.Rail and Rapid Transit),2004,218(2):173-177.
[7]LUO R K,WU W X.Fatigue failure analysis of anti-vibration rubber spring[J].Engineering Failure Analysis,2006,13:110-116.
[8]SAINTIER N,CAILLETAUD G,PIQUES R.Crack initiation and propagation under multiaxial fatigue in a natural rubber[J].International Journal of Fatigue,2006,28:530-439.