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Microstructure and contours of crack tip crazes in PVC created under different loading conditions

: Könczöl, L.; Döll, W.; Michler, G.H.; Enßlen, M.

Institute of Materials, London:
9th International Conference on Deformation, Yield and Fracture of Polyers 1994. Conference papers
London: Institute of Materials, 1994
International Conference on Deformation, Yield and Fracture of Polymers <9, 1994, Cambridge>
Conference Paper
Fraunhofer IWM ()
craze; interferometry; micromechanics; microstructure; PVC; TEM

Crack tip crazes in rigid PVC were investigated by optical interferometry and subsequently microtomed for investigation in an high voltage electron microscope. A good agreement between dimensions measured by both means has been found. A craze created under fatigue loading exhibits fibrillar structure whereas the craze matter from static load Is almost structureless. In a craze first created under fatigue and than enlargened under static load both types of craze structure can be found exhibiting the regimes of different loading histories.