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ASTM E1922

Standard Test Method for Translaminar Fracture Toughness of Laminated and Pultruded Polymer Matrix Composite Materials.
1.1 This test method covers the determination of translaminar fracture toughness, KTL, for laminated and pultruded polymeric matrix composite materials of various layer orientations using test results from monotonously loaded notches.
1.2 This test method is applicable to laboratory air environments at room temperature.
1.3 Composite materials that can be tested by this test method are not limited by the thickness or type of polymer matrix or fiber, provided that the sample sizes and test results meet the requirements of this test method. This test method was developed mainly from test results of various carbon fiber laminates – epoxy matrix and additional results of glass fiber matrix – epoxy matrix, glass fiber – polyester pultrusions and fiber matrix laminates of carbon – bismaleimide.

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