ENGINEERING PROPERTIES OF LAMINATES 



5-39 



OURATION OF LOAD - HOURS 



Fig. 5-17. Tensile Strength Retention of Continuously 

 Loaded Polyester Fiberglass Laminates 



1 10 10^ 



DURATION OF LOAD - HOURS 



10 4 



Fig. 5-18. Flexural Strength Retention of Continuously 

 Loaded Polyester Fiberglass Laminates 



