Volume 6, Issue 6 (November 1978)

    Fracture Toughness of Stretched Acrylic Plastic


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    This paper presents the method and results of a parametric study of instability toughness, as measured by the plane-strain KIc and plane-stress Kc fracture toughness of a multiaxially stretched acrylic plastic. A large number of computer-controlled tests were conducted with the compact tension specimen under high compliance loading/load control. These tests reveal the significant effects on Kc and KIc of a wide range of loading rates, specimen thicknesses, and specimen geometry. A direct and immediate application of the results is the recommendation of a new fracture toughness acceptance test for these materials.

    Author Information:

    Sutton, SA
    Materials/computer engineer, Naval Research Laboratory, Washington, D.C.

    Stock #: JTE10579J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10579J

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    Title Fracture Toughness of Stretched Acrylic Plastic
    Symposium , 0000-00-00
    Committee D20