The fracture mechanism and fracture toughness of glass-cloth/polyester composite laminate (GPCL) at low temperature (77 °K) were studied by experimental technique. The results show that the fracture toughness of GPCL at 77 °K is much greater than at ambient temperature (300 °K). In addition, the fracture phenomenon of net matrix material and matrix with a few bunches of glass fibers is also researched.
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References
1.
Standard Test Method for Plane-Strain Fracture Toughness of Metallic Materials (E399, ASTM STP 632 (1976).
2.
Brown, W.R., Jr. and Srawley, J.E. , ASTM STP410 (1967).
