Influence of the molecular structure on slow crack growth resistance and impact fracture toughness in Cr-catalyzed ethylene-hexene copolymers for pipe applications

2001 ◽  
Vol 82 (4) ◽  
pp. 916-928 ◽  
Author(s):  
V. Stephenne ◽  
D. Daoust ◽  
G. Debras ◽  
M. Dupire ◽  
R. Legras ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Fracture Toughness ◽  
Crack Growth ◽  
Slow Crack Growth ◽  
Crack Growth Resistance ◽  
Impact Fracture

The Fracture Toughness of Hardened Tool Steels

1987 ◽  
Vol 109 (4) ◽  
pp. 314-318 ◽  
Author(s):  
D. F. Watt ◽  
Pamela Nadin ◽  
S. B. Biner
Keyword(s):  
Fracture Toughness ◽  
Crack Growth ◽  
Slow Crack Growth ◽  
Crack Opening ◽  
Compact Tension ◽  
Testing Procedure ◽  
Tool Steels ◽  
Opening Displacement ◽  
Tempering Temperature ◽  
Toughness Testing

This report details the development of a three-stage fracture toughness testing procedure used to study the effect of tempering temperature on toughness in 01 tool steel. Modified compact tension specimens were used in which the fatigue precracking stage in the ASTM E-399 Procedure was replaced by stable precracking, followed by a slow crack growth. The specimen geometry has been designed to provide a region where slow crack growth can be achieved in brittle materials. Three parameters, load, crack opening displacement, and time have been monitored during the testing procedure and a combination of heat tinting and a compliance equation have been used to identify the position of the crack front. Significant KIC results have been obtained using a modified ASTM fracture toughness equation. An inverse relationship between KIC and hardness has been measured.

Slow crack growth resistance of electrically conductive zirconia-based composites with non-oxide reinforcements

2019 ◽  
Vol 39 (2-3) ◽  
pp. 641-646 ◽  
Author(s):  
Fei Zhang ◽  
Jérôme Chevalier ◽  
Christian Olagnon ◽  
Shuigen Huang ◽  
Wout Veulemans ◽  
...  
Keyword(s):  
Crack Growth ◽  
Slow Crack Growth ◽  
Crack Growth Resistance ◽  
Electrically Conductive

Effect of polyethylene and polypropylene cross-contamination on slow crack growth resistance

2020 ◽  
Vol 25 (8) ◽  
pp. 649-666
Author(s):  
Mario Messiha ◽  
Andreas Frank ◽  
Thomas Koch ◽  
Florian Arbeiter ◽  
Gerald Pinter
Keyword(s):  
Crack Growth ◽  
Slow Crack Growth ◽  
Crack Growth Resistance ◽  
Cross Contamination

Slow crack growth resistance in resin blends of chromium and metallocene catalyzed ethylene-hexene copolymers for pipe applications

2008 ◽  
Vol 48 (5) ◽  
pp. 925-933 ◽  
Author(s):  
Rafael A. García ◽  
A. Carrero ◽  
M. Aroca ◽  
O. Prieto ◽  
C. Domínguez
Keyword(s):  
Crack Growth ◽  
Slow Crack Growth ◽  
Crack Growth Resistance
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