The superposition model and environmental crack propagation in low-density polyethylene

A study has been made of dynamic and static fatigue failure phenomena in low‐density polyethylene (ρ = 0.912) of MF17 in a methanol environment using SEN specimens. The type of failure, namely, crack propagation, was the same in both conditions and the results were analyzed using fracture mechanics...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science 1978-09, Vol.22 (9), p.2691-2699
Main Authors: El-Hakeem, H. A., Culver, L. E.
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A study has been made of dynamic and static fatigue failure phenomena in low‐density polyethylene (ρ = 0.912) of MF17 in a methanol environment using SEN specimens. The type of failure, namely, crack propagation, was the same in both conditions and the results were analyzed using fracture mechanics concepts. A previous model for correlating environmental dynamic and static fatigue crack growth in metals was applied to this polymeric material, and good agreement was found between experimental and predicted behavior when the strain‐rate sensitivity of the threshold value of the stress intensity factor was taken into account.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1978.070220925