scholarly journals A Study of Deformation Mechanism of High Density Polyethylene and Polypropylene by Simultaneous Measurement of Stress, Strain and Infrared Dichroism

1967 ◽  
Vol 16 (168) ◽  
pp. 746-750 ◽  
Author(s):  
Shigeharu ONOGI ◽  
Tadahiro ASADA ◽  
Takeshi TAKAGI
Keyword(s):  
Deformation Mechanism ◽  
Simultaneous Measurement ◽  
High Density Polyethylene ◽  
High Density ◽  
Stress Strain ◽  
Infrared Dichroism

Stress-strain behavior of high-density polyethylene below the yield point: Effect of unloading rate

2008 ◽  
Vol 50 (5) ◽  
pp. 507-513 ◽  
Author(s):  
Stanislav Abramovich Patlazhan ◽  
K. Hizoum ◽  
Y. Rémond
Keyword(s):  
Yield Point ◽  
High Density Polyethylene ◽  
High Density ◽  
Stress Strain ◽  
Strain Behavior ◽  
Unloading Rate

Viscoplastic Constitutive Equation of High-Density Polyethylene

2007 ◽  
Vol 340-341 ◽  
pp. 1097-1102 ◽  
Author(s):  
Yukio Sanomura ◽  
Mamoru Mizuno
Keyword(s):  
Constitutive Equation ◽  
Strain Rate ◽  
High Density Polyethylene ◽  
Kinematic Hardening ◽  
Constant Strain Rate ◽  
Strain Curve ◽  
High Density ◽  
Stress Strain Curve ◽  
Stress Strain ◽  
Creep Theory

A viscoplastic constitutive equation based on the kinematic hardening creep theory of Malinin-Khadjinsky and the nonlinear kinematic hardening rule of Armstrong-Frederick is formulated to describe the inelastic behavior of high-density polyethylene under various loading. The gentle progress of back stress by the introduction of loading surface in the viscoplastic strain space and smaller material constant under unloading can be expressed. Material constants are identified by various stress-strain curves under compression at constant strain rate and creep curves under compression at constant stress. The viscoplastic model can describe stress-strain curve under compression with change in strain rate and shear stress-strain curve including unloading. The model can qualitatively describe stress-strain curves under compression with changed strain rate including unloading, but it is quantitatively insufficient.

scholarly journals Deformation mechanism of high-density polyethylene probed by in situ Raman spectroscopy

Polymer ◽  
2015 ◽  
Vol 58 ◽  
pp. 88-95 ◽  
Author(s):  
Takumitsu Kida ◽  
Tatsuya Oku ◽  
Yusuke Hiejima ◽  
Koh-hei Nitta
Keyword(s):  
Raman Spectroscopy ◽  
Deformation Mechanism ◽  
High Density Polyethylene ◽  
High Density ◽  
In Situ Raman Spectroscopy ◽  
In Situ Raman

Influence of microstructure and morphology on stress-strain behavior of commercial high density polyethylene

2008 ◽  
Vol 110 (1) ◽  
pp. 624-631 ◽  
Author(s):  
Mostafa Zahedi ◽  
Mostafa Ahmadi ◽  
Mehdi Nekoomanesh
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Stress Strain ◽  
Strain Behavior
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