Abstract
Narrow beams of polymethyl methacrylate and polycarbonate with central cracks or Vee notches of various depths were subjected to central transverse impact by pneumatically propelled steel spheres and the hammers of a commercial impact tester. The transient loading was monitored by strain gages, and the stress-intensity factor at the tip of the discontinuity was determined sequentially by a shadowgraphic technique using a Cranz-Schardin camera. The fracture phenomena were studied with the aid of these methods.
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F. Katsamanis is Lecturer in Mechanics, Naval College, Athens, Greece; was formerly associated with Laboratory for Testing Materials, The Technical University, Athens, Greece.
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Goldsmith, W., Katsamanis, F. Fracture of notched polymeric beams due to central impact. Experimental Mechanics 19, 235–244 (1979). https://doi.org/10.1007/BF02328652
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DOI: https://doi.org/10.1007/BF02328652