Fatigue characteristics of vulcanized natural rubber for automotive engine mounting

被引：3
|
作者：
Shibata, S. [1 ]
Ochi, K. [1 ]
Aono, Y. [1 ]
Noguchi, H. [1 ]
Oshima, H. [2 ]
机构：
[1] Kyushu Univ, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan
[2] Tokai Res Ind, Aichi 4858550, Japan
来源：
PROGRESSES IN FRACTURE AND STRENGTH OF MATERIALS AND STRUCTURES, 1-4 | 2007年 / 353-358卷
关键词：
fatigue; rubber; stress ratio; crystallization; fatigue life prediction;
D O I：
10.4028/www.scientific.net/KEM.353-358.178
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to investigate fatigue characteristics of vulcanized natural rubber (NR), fatigue tests are carried out under various stress ratios R (R = minimum stress / maximum stress). It was considered that the fatigue cracks were initiated from flaws in very early stage of total life. The fatigue damage process was almost the fatigue crack propagation process and it is independent of R. The crack growth rate was proportional to the crack length to about the first power, when the crack length was defined as the length of the direction perpendicular to the loading direction. Miner's rule was examined to observe the fatigue crack behavior and checked by using two-step loading fatigue tests experimentally. It seems Miner's rule has a possibility to predict fatigue lives.
引用
收藏
页码：178 / +
页数：2
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