An experimental investigation of some models of polymer fracture

✍ Scribed by K. L. Devries; D. K. Roylance; M. L. Williams

• Publisher: Springer Netherlands
• Year: 1971
• Tongue: English
• Weight: 412 KB
• Volume: 7
• Category: Article
• ISSN: 1573-2673
• DOI: 10.1007/bf00183806

✦ Synopsis

It has recently been shown that the techniques of EPR spectroscopy can be used to monitor atomic bond rupture during fracture of polymeric materials and thus provide important new insights of the molecular mechanisms of fracture in these materials. In particular, this method can be used as a fundamental check of the several atomistlcallyderived theories of polymer fracture. In this paper such a check is made of two representative such theories, those of S. N. Zhurkov and W. G. Knauss. It is shown that these theories do not provade physically realistic models of the fracture mechanisms in oriented polymeric fibers and it ts suggested that their lack of relevance is due to the umque morphological structure of highly oriented polymers.