Combined Effects of Sustained Loads and Wet-Dry Cycles on Durability of Glass Fiber Reinforced Polymer Composites

Table 2

Mechanical properties of GFRP under the combined effects of sustained loads and WD cycles.

Specimens	Load level	WD cycles	Tensile strength; (MPa)	Elastic modulus; (GPa)	Elongation; (mm)
WWD2	20%	0	416.75	24.70	1.813
		15	440.85	26.87	0.958
		30	487.13	27.17	1.235
		60	508.28	28.10	0.929
		90	431.74	24.56	0.684
		180	403.64	22.65	0.507
		360	345.90	20.61	0.484
WWD4	40%	0	416.75	24.70	1.813
		15	435.91	25.89	1.258
		30	474.93	28.27	1.017
		60	532.71	29.75	0.873
		90	442.15	24.00	0.557
		180	390.90	22.05	0.485
		360	329.12	19.59	0.443
SWD2	20%	0	416.75	24.70	1.813
		15	470.66	24.29	0.703
		30	478.37	25.10	1.055
		60	499.34	27.36	0.980
		90	477.48	26.85	0.796
		180	398.63	22.28	0.505
		360	347.23	19.89	0.486
SWD4	40%	0	416.75	24.70	1.813
		15	478.71	25.87	0.942
		30	493.56	27.87	1.071
		60	534.80	28.56	0.971
		90	465.53	25.35	0.654
		180	390.89	21.98	0.431
		360	328.69	18.90	0.423