The cook-gordon mechanism in polymeric materials

This review article, supported by some original experimental results, explains the nature of the Cook‐Gordon (C‐G) mechanism of crack blunting. Examples are given of how the C‐G mechanism influences the toughness of several anisotropic materials: fibrillated polymeric films, composites based on orie...

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Veröffentlicht in:	Polymer engineering and science 1993-11, Vol.33 (21), p.1438-1443
Hauptverfasser:	Raab, Miroslav, Schulz, Eckhard, Sova, Miloš
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Mechanical properties Physical properties Polymer industry, paints, wood Properties and testing Technology of polymers
Online-Zugang:	Volltext
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Zusammenfassung:	This review article, supported by some original experimental results, explains the nature of the Cook‐Gordon (C‐G) mechanism of crack blunting. Examples are given of how the C‐G mechanism influences the toughness of several anisotropic materials: fibrillated polymeric films, composites based on oriented polymers, and beech and spruce woods. Moreover, the C‐G mechanism can explain the effects of orientation on anisotropic photo‐oxidative degradation of semicrystalline polymers, and also the sudden embrittlement of polymeric films exposed to UV light under stress.
ISSN:	0032-3888 1548-2634
DOI:	10.1002/pen.760332110