Effect of thermal history on the initiation of slow crack growth in linear polyethylene
β Scribed by Xici Lu; Norman Brown
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 844 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
The effect of β₯-irradiation on slow crack growth (SCG) in a medium density polyethylene (MDPE) was measured and compared with behavior of high density polyethylene (HDPE) and a recrystallized HDPE (RCHDPE). The three materials exhibited the same dependence on dose up to 3 Mrd. The HDPE became brittl
The effects of g-irradiation were measured in a HDPE and in the resin after it was recrystallized. The fracture mode of the initial material transformed from crazing to complete brittle failure at a critical dose. The failure mode of the recrystallized material transformed from crazing to shear defo
## Abstract Polyolefins, particularly polyethylene, are known to fail via crack initiation and crack propagation when exposed to multiaxial longβterm static stresses at elevated temperatures. Using concepts of linear elastic fracture mechanics, this article describes and discusses the effects of st