Glass fiber is by far the most predominant fiber used in the reinforced polymer industry andrnamong the most versatile. E Glass fiber reinforced polymer matrix composites have been widelyrnused as a substitute materials in automobile and aerospace applications, because of theirrnlightweight characteristics and better mechanical properties. Although glass fibers used forrndifferent applications, they have the problem of crack formation and propagation at a workingrnload. Even if many studies have been made on woven (bidirectional) glass fiber reinforced epoxyrncomposite materials, we cannot stop or minimize the crack propagation yet. Therefore, there is arnneed to conduct research in order to investigate the fracture behavior of this composite material.rnFracture behavior of woven glass fiber epoxy composite material, will be studied using thernexperimental method. The fracture toughness; associated with fiber tensile failure in a wovenrnglass fiber reinforced epoxy composite material is measured using a compact tension test.rnInvestigation deals with the characterization of tensile properties according to the ASTMrnstandard D E399. Hand layup technique was employed to prepare the compact tensile specimen. rnThe values of the tensile fiber failure critical energy release rate were determined for allrnorientations (0rn0rn0rn0rn, 30rn, 45rn0rn, and 60rn). The energy release rates of all the samples are 198.66 kJmrn-2 rnfor CTS 0, 229.22 kJmrn-2rn for CTS 30, 268.64rn-2 rn KJmrn for CTS 45 and 232.98 KJmrn-2rn rn rn rn for CTS 60. rnThe woven glass fiber reinforced epoxy composite material with 0rn orientation has an overallrnimprovement of 22.62% strain energy release rate over that of CTS 30, CTS 45 and CTS 60.