Deformation mechanisms and plastic resistance in single-crystal-textured high-density polyethylene

1992 ◽  
Vol 25 (19) ◽  
pp. 5036-5053 ◽  
Author(s):  
Z. Bartczak ◽  
A. S. Argon ◽  
R. E. Cohen
Keyword(s):  
Single Crystal ◽  
High Density Polyethylene ◽  
High Density ◽  
Deformation Mechanisms

Anisotropic-to-Isotropic Change in Lateral Force at the Surface of Single-Crystal Lamellae of High-Density Polyethylene during Low-Temperature Annealing

2004 ◽  
Vol 37 (13) ◽  
pp. 5115-5117 ◽  
Author(s):  
Yuji Ryousho ◽  
Sono Sasaki ◽  
Toshihiko Nagamura ◽  
Atsushi Takahara ◽  
Tisato Kajiyama
Keyword(s):  
Low Temperature ◽  
Single Crystal ◽  
High Density Polyethylene ◽  
Lateral Force ◽  
High Density ◽  
Low Temperature Annealing

Improved ?single-crystal? texture in high-density polyethylene

1974 ◽  
Vol 9 (3) ◽  
pp. 521-522 ◽  
Author(s):  
R. W. Gray ◽  
R. J. Young
Keyword(s):  
Single Crystal ◽  
High Density Polyethylene ◽  
High Density ◽  
Crystal Texture

scholarly journals Numerical and experimental study of the Behaviour of notched HDPE

2021 ◽  
Vol 229 ◽  
pp. 01002
Author(s):  
Rabiaa Elkori ◽  
Amal Laamarti ◽  
Khalid Elhad ◽  
Abdelilah Hachim
Keyword(s):  
Experimental Study ◽  
Tensile Test ◽  
High Density Polyethylene ◽  
Room Temperature ◽  
Industrial Applications ◽  
High Density ◽  
Deformation Mechanisms ◽  
Commercial Software ◽  
Notched Specimens ◽  
Software Code

It is important to study the Behaviour of high-density polyethylene (HDPE) under notch effects as it is widely used in industrial applications (Qi, 2018). However, there are only a few studies on the Behaviour of HDPE with defects, this work aims to study the deformation mechanisms under a tensile test experimentally performed on blank and notched specimens at constant speed and room temperature, and by developing our study by simulating HDPE using commercial software code.

The structure of high-density polyethylene with a single-crystal texture

1973 ◽  
Vol 8 (8) ◽  
pp. 1177-1184 ◽  
Author(s):  
R. J. Young ◽  
P. B. Bowden
Keyword(s):  
Single Crystal ◽  
High Density Polyethylene ◽  
High Density ◽  
Crystal Texture

Deformation mechanisms in oriented high density polyethylene

1978 ◽  
Vol 13 (3) ◽  
pp. 639-646 ◽  
Author(s):  
S. G. Burnay ◽  
G. W. Groves
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Deformation Mechanisms

Deformation mechanisms in oriented high-density polyethylene

1973 ◽  
Vol 8 (1) ◽  
pp. 23-36 ◽  
Author(s):  
R. J. Young ◽  
P. B. Bowden ◽  
J. M. Ritchie ◽  
J. G. Rider
Keyword(s):  
High Density Polyethylene ◽  
High Density ◽  
Deformation Mechanisms

scholarly journals The Tensile Behaviour of Highly Filled High-Density Polyethylene Quaternary Composites: Weld-Line Effects, DIC Curiosities and Shifted Deformation Mechanisms

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 527
Author(s):  
David Viljoen ◽  
Matthieu Fischer ◽  
Ines Kühnert ◽  
Johan Labuschagné
Keyword(s):  
High Density Polyethylene ◽  
Tensile Testing ◽  
Weld Line ◽  
High Density ◽  
Image Correlation ◽  
Interactive Effects ◽  
Deformation Mechanisms ◽  
Tensile Behaviour ◽  
Combined Time Series ◽  
Stress Whitening

The interactive effects between additives and weld lines, which are frequent injection-moulding defects, were studied in high-density polyethylene (HDPE) and compared to weld-line-free reference samples. These materials were formulated around a D- and I-optimal experimental design, based on a quadratic Scheffé polynomial model, with up to 60 wt% calcium carbonate, masterbatched carbon black and a stabiliser package. Where reasonable and appropriate, the behaviours of the systems were modelled using statistical techniques, for a better understanding of the underlying trends. The characterisations were performed through the use of conventional tensile testing, digital image correlation (DIC) and scanning electron microscopy (SEM). A range of complex interactive effects were found during conventional tensile testing, with DIC used to better understand and explain these effects. SEM is used to better understand the failure mechanics of some of these systems through fractography, particularly regarding particle effects. A measure is introduced to quantify the deviation of the pre-yield deformation curve from the ideal elastic case. Novel analysis of DIC results is proposed, through the use of combined time-series plots and measures quantifying the extent and localisation of peak deformation. Through this, it could be found that strong shifts in the deformation mechanisms occur as a function of formulation and the presence/absence of weld lines. Primarily, changes are noted in the onset of continuous inter- and intralamellar slip and cavitation/fibrillation, seen through the onset of localised deformation and stress-whitening.

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