scholarly journals Effect of Crystalline Relaxation on Fatigue Behavior of the Oriented High-Density Polyethylene Based on Nonlinear Viscoelastic Measurements

1994 ◽  
Vol 26 (9) ◽  
pp. 1027-1036 ◽  
Author(s):  
Nam-Ju Jo ◽  
Atsushi Takahara ◽  
Tisato Kajiyama
Keyword(s):  
High Density Polyethylene ◽  
Fatigue Behavior ◽  
High Density ◽  
Nonlinear Viscoelastic

scholarly journals Multiaxial Fatigue Behavior of High-Density Polyethylene (HDPE) Including Notch Effect: Experiments and Modeling

2019 ◽  
Vol 300 ◽  
pp. 05001 ◽  
Author(s):  
Mohammadreza Amjadi ◽  
Ali Fatemi
Keyword(s):  
High Density Polyethylene ◽  
Fatigue Behavior ◽  
Equivalent Stress ◽  
Fatigue Tests ◽  
Multiaxial Fatigue ◽  
High Density ◽  
Analytical Models ◽  
Axial Torsion ◽  
Stress Concentration Effect ◽  
Von Mises

High-Density Polyethylene (HDPE) is used in many industries with many applications from automotive industry to biomedical implants. It can be manufactured using different processing techniques including compression molding, injection molding, and blow molding. Multiaxial loading and non-proportionality between different loading sources are inevitable in many applications. It is shown that the common multiaxial fatigue criteria such as von Mises equivalent stress are not able to correlate the multiaxial fatigue data. In this study, multiaxial fatigue behavior of neat HDPE is investigated using hollow tubular specimens through experimental fatigue tests. Axial, torsion, and combined in phase and out-of-phase axial-torsion fatigue tests were conducted. Stress concentration effect on multiaxial fatigue behavior was also studied. Experimental results and analytical models used to account for the aforementioned effects are presented and discussed in this paper.

scholarly journals EFFECT OF CRYSTAL ORIENTATION ON FATIGUE BEHAVIOR OF SOLID-STATE EXTRUDED HIGH-DENSITY POLYETHYLENE

1986 ◽  
Vol 42 (3) ◽  
pp. T127-T135 ◽  
Author(s):  
Norihiro Kaiya ◽  
Masahiro Kugishima ◽  
Atsushi Takahara ◽  
Tisato Kajiyama
Keyword(s):  
Solid State ◽  
High Density Polyethylene ◽  
Crystal Orientation ◽  
Fatigue Behavior ◽  
High Density
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