TY - JOUR
T1 - Fatigue Characteristics of vulcanized natural rubber for antivibration (1st report, a study on the effect of stress ratio focused on fatigue damage)
AU - Shibata, Shunsaku
AU - Ochi, Katsuhiko
AU - Ohshima, Hideki
AU - Aono, Yuuta
AU - Noguchi, Hiroshi
PY - 2008/3
Y1 - 2008/3
N2 - In order to investigate fatigue characteristics of vulcanized natural rubber, fatigue tests were carried out under various stress ratios R. It was considered that the fatigue cracks were initiated from defects in very early stage of total life. The fatigue life was nearly equal to the fatigue crack propagation life and the propagation process was 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. The crack propagation mode was dependent on R. Under 0 < R < 1 condition, the crack tended to propagate along the loading direction because of crystallization.
AB - In order to investigate fatigue characteristics of vulcanized natural rubber, fatigue tests were carried out under various stress ratios R. It was considered that the fatigue cracks were initiated from defects in very early stage of total life. The fatigue life was nearly equal to the fatigue crack propagation life and the propagation process was 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. The crack propagation mode was dependent on R. Under 0 < R < 1 condition, the crack tended to propagate along the loading direction because of crystallization.
UR - http://www.scopus.com/inward/record.url?scp=44949102378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44949102378&partnerID=8YFLogxK
U2 - 10.1299/kikaia.74.450
DO - 10.1299/kikaia.74.450
M3 - Article
AN - SCOPUS:44949102378
VL - 74
SP - 450
EP - 458
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
SN - 0387-5008
IS - 3
ER -