Work of fracture of high impact polystyrene (HIPS) film under plane stress conditions |
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Authors: | S Hashemi |
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Affiliation: | (1) London Metropolitan Polymer Centre, London Metropolitan University, London, N7 8DB, UK |
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Abstract: | Essential work of fracture methodology was used to determine plane-stress ductile fracture toughness of high impact polystyrene film of thickness 0.26 mm. Results obtained indicated that specific essential work of fracture, w
e, is independent of loading rate, and for certain specimen sizes, independent of both gauge length and width of the specimen. On the other hand, w
e was found to be affected by the temperature, molecular anisotropy and the geometry of the test specimens. Reasonable estimate of w
e was obtained via crack opening displacement value. |
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Keywords: | |
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