TY - JOUR
T1 - Hygrothermal degradation in glass/epoxy - evaluation via stress wave factors
AU - Hong, Gang
AU - Yalizis, Angelo
AU - Frantziskonis, George N.
N1 - Funding Information:
The third author (GNF) was supported partially by the National Science Foundation (NSF/PYI/ MSS-9157237), by the Hughes Aircraft Company. Part of the ultrasonic equipment became available through contributions by Tektronix Corporation.
PY - 1995
Y1 - 1995
N2 - The paper documents an experimental study on nondestructive evaluation of hygrothermally degraded glass fiber/epoxy matrix composite laminates. Specimens were subjected to accelerated life tests, i.e. high temperature and high pressure steam. The efficiency of the stress (ultrasonic) wave propagation through the specimens was evaluated quantitatively, at various stages of degradation, via the so-called stress wave factors (SWFs). Scanning electron micrographs were taken at some stages of degradation. In addition, the specimens were tested in bending mode. All measurements are correlated with the SWFs.
AB - The paper documents an experimental study on nondestructive evaluation of hygrothermally degraded glass fiber/epoxy matrix composite laminates. Specimens were subjected to accelerated life tests, i.e. high temperature and high pressure steam. The efficiency of the stress (ultrasonic) wave propagation through the specimens was evaluated quantitatively, at various stages of degradation, via the so-called stress wave factors (SWFs). Scanning electron micrographs were taken at some stages of degradation. In addition, the specimens were tested in bending mode. All measurements are correlated with the SWFs.
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U2 - 10.1016/0263-8223(94)00063-8
DO - 10.1016/0263-8223(94)00063-8
M3 - Article
AN - SCOPUS:0028993870
VL - 30
SP - 407
EP - 417
JO - Composite Structures
JF - Composite Structures
SN - 0263-8223
IS - 4
ER -