TY - GEN
T1 - Prediction of first transverse crack formation in cross-ply CFRP laminates under fatigue loading
AU - Hosoi, A.
AU - Kurihara, K.
AU - Sato, N.
AU - Kawada, H.
PY - 2012/12/1
Y1 - 2012/12/1
N2 - The formation of a first transverse crack in cross-ply CFRP laminates was predicted under fatigue loading and the fatigue limit of transverse crack initiation was evaluated quantitatively. Transverse cracks induce more serious damage, such as delamination or fiber breakage. It is essential to understand the mechanism of the transverse crack initiation for improving long-term durability of CFRP laminates. Therefore, a method was proposed to predict the number of cycles to transverse crack initiation in cross-ply CFRP laminates under fatigue loading. Two types of cross-ply CFRP laminates, [0/90 6]s and [02/9012]s, of different thickness were used for fatigue tests. As the results, we were successful in predicting the number of cycles to transverse crack initiation under fatigue loading and evaluating the fatigue limit of the transverse crack initiation by the proposed analysis. Moreover, it was found that the fatigue life to transverse crack initiation in [0/906]s laminate was approximately 100 times longer than that in [02/90 12]s laminates.
AB - The formation of a first transverse crack in cross-ply CFRP laminates was predicted under fatigue loading and the fatigue limit of transverse crack initiation was evaluated quantitatively. Transverse cracks induce more serious damage, such as delamination or fiber breakage. It is essential to understand the mechanism of the transverse crack initiation for improving long-term durability of CFRP laminates. Therefore, a method was proposed to predict the number of cycles to transverse crack initiation in cross-ply CFRP laminates under fatigue loading. Two types of cross-ply CFRP laminates, [0/90 6]s and [02/9012]s, of different thickness were used for fatigue tests. As the results, we were successful in predicting the number of cycles to transverse crack initiation under fatigue loading and evaluating the fatigue limit of the transverse crack initiation by the proposed analysis. Moreover, it was found that the fatigue life to transverse crack initiation in [0/906]s laminate was approximately 100 times longer than that in [02/90 12]s laminates.
KW - CFRP
KW - Fatigue
KW - Initiation
KW - Prediction
KW - Transverse crack
UR - http://www.scopus.com/inward/record.url?scp=84893018625&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893018625&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84893018625
SN - 9781629930664
T3 - 8th Asian-Australasian Conference on Composite Materials 2012, ACCM 2012 - Composites: Enabling Tomorrow's Industry Today
SP - 173
EP - 178
BT - 8th Asian-Australasian Conference on Composite Materials 2012, ACCM 2012 - Composites
T2 - 8th Asian-Australasian Conference on Composite Materials 2012 - Composites: Enabling Tomorrow's Industry Today, ACCM 2012
Y2 - 6 November 2012 through 8 November 2012
ER -