Influence of water and accelerated aging on the shear fracture properties of glass/epoxy composite |
| |
| Authors: | Davies P Pomiès F Carlsson L A |
| |
| Affiliation: | (1) Marine Materials Laboratory, IFREMER, Brest Centre, Plouzané, France;(2) Allied Signal Fibers, European Development Center, Longlaville, France;(3) Dept. of Mechanical Engineering, Florida Atlantic University, Boca Raton, U.S.A. |
| |
| Abstract: | The degradation of interlaminar shear strength and shear fracture toughness of glass/epoxy composites due to uptake of distilled water and sea water has been studied. The composites were immersed in water for up to eight months at temperatures up to 70 °C. Unreinforced matrix resin samples were also immersed for periods up to 2 years. Sea water was absorbed less rapidly than distilled water. Weight gains below 1% did not influence the shear strength while higher weight gains reduced shear strength up to 25%. The loss in apparent interlaminar shear strength was uniquely related to specimen weight gain. Mode II fracture toughness, G
IIc, also decreased with increasing immersion time after an initial incubation period, but the accelerated tests were found to reduce G
IIc less than the room temperature tests at comparable weight gains. |
| |
| Keywords: | composite aging shear fracture water |
| 本文献已被 SpringerLink 等数据库收录！ |
|
