TY - GEN
T1 - Damage evolution of delayed fracture in woven GFRP under hot water environment
AU - Kotani, Masahiro
AU - Nakamichi, Koutarou
AU - Yasufuku, Yusuke
AU - Kawada, Hiroyuki
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2009
Y1 - 2009
N2 - Present paper deals with the delayed fracture in woven GFRP underwater at elevated temperature. The tensile test of GFRP after water immersion was conducted to evaluate the residual strength ater immersion at various water temperatures. The residual strength of GFRP decreased with the increase in the water temperature and the immersion time. In fact, the transition in failure mode with water immersion was ascertained from SEM observation of the fracture surface. Additionally, creep test in air and under hot water at 95°C was conducted. The creep rupture time decreased drastically with water immersion, in contrast, creep rupture wasn't observed from the creep test in air. It was clarified that the water immersion generated the transition in the failure mode of GFRP and therefore led to the acceleration of the strength degradation.
AB - Present paper deals with the delayed fracture in woven GFRP underwater at elevated temperature. The tensile test of GFRP after water immersion was conducted to evaluate the residual strength ater immersion at various water temperatures. The residual strength of GFRP decreased with the increase in the water temperature and the immersion time. In fact, the transition in failure mode with water immersion was ascertained from SEM observation of the fracture surface. Additionally, creep test in air and under hot water at 95°C was conducted. The creep rupture time decreased drastically with water immersion, in contrast, creep rupture wasn't observed from the creep test in air. It was clarified that the water immersion generated the transition in the failure mode of GFRP and therefore led to the acceleration of the strength degradation.
KW - Creep behavior
KW - GFRP
KW - Stress corrosion cracking
KW - Water environment
UR - http://www.scopus.com/inward/record.url?scp=74049092186&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=74049092186&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.79-82.1923
DO - 10.4028/www.scientific.net/AMR.79-82.1923
M3 - Conference contribution
AN - SCOPUS:74049092186
SN - 0878493042
SN - 9780878493043
T3 - Advanced Materials Research
SP - 1923
EP - 1926
BT - Multi-Functional Materials and Structures II
T2 - 2nd International Conference on Multi-Functional Materials and Structures, MFMS-2009
Y2 - 9 October 2009 through 12 October 2009
ER -