scholarly journals Experimental and numerical assessment of the work of fracture in injection-moulded low-density polyethylene

2018 ◽  
Vol 192 ◽  
pp. 1-11 ◽  
Author(s):  
Martin Kroon ◽  
Eskil Andreasson ◽  
Viktor Petersson ◽  
Pär A.T. Olsson
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Numerical Assessment ◽  
Work Of Fracture

Essential work of fracture of glass bead filled low density polyethylene

2005 ◽  
Vol 40 (19) ◽  
pp. 5323-5326 ◽  
Author(s):  
Wei Yang ◽  
Bang-Hu Xie ◽  
Wei Shi ◽  
Min Zuo ◽  
Zhong-Ming Li ◽  
...  
Keyword(s):  
Glass Bead ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Essential Work ◽  
Essential Work Of Fracture ◽  
Work Of Fracture

scholarly journals Tearing and Delaminating of a Polymer Laminate

2011 ◽  
Vol 465 ◽  
pp. 169-174 ◽  
Author(s):  
Sharon Kao-Walter ◽  
M. Walter ◽  
A. Dasari ◽  
A. Leon
Keyword(s):  
Crack Propagation ◽  
Fracture Behaviour ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Element Calculation ◽  
Essential Work Of Fracture ◽  
Plastic Zones ◽  
Materials Used ◽  
Laminated Materials ◽  
Work Of Fracture

The fracture behaviour of laminated materials was studied in this work. The materials used in this work were low-density polyethylene (LDPE) laminated on polyethylene (PET). The thickness of the LDPE was 27 µm and the PET was 100 µm. Experiments were performed by using a 2-leg trousers specimen to analyse the tearing behaviour of the laminate in relation to the delamination. A clear delamination zone was observed during the crack propagation by tearing. Furthermore, a finite element calculation was performed to simulate the behavior around the crack tip during the tearing. A correlation between adhesion and crack propagation was discussed. Finally, the theory of Essential Work of Fracture (EWF) was used for predicting the specific total work of fracture along the tear path across the plastic zones.

Impact-Specific Essential Fracture Work of Banana Fiber Reinforced Low-Density Polyethylene Composites

2019 ◽  
Vol 961 ◽  
pp. 16-22
Author(s):  
Purnomo ◽  
Putu Hadi Setyarini ◽  
Dwi Sulistyaningsih
Keyword(s):  
Fracture Toughness ◽  
Work Stress ◽  
Atmospheric Pressure ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Powder Form ◽  
Banana Fiber ◽  
Essential Work Of Fracture ◽  
Work Of Fracture ◽  
Fracture Work

The aim of this study is to investigate the behavior of banana fiber (BF)-low-density polyethylene (LDPE) composite fracture toughness. The LDPE pellets are transformed into powder form which is then functioned as a matrix reinforced with banana fiber (BF). The composites were formed by injection molding techniques which are followed by atmospheric-pressure annealing at 90°C for 24 hours. The composite fracture toughness behavior was evaluated using the essential work of fracture (EWF) approach. The results show that fracture toughness which is characterized by essential fracture work (we) value increases by the presence of BF up to 5 wt.%. However, the we value starts to decrease in the composite with BF content of 6 wt.%. There is a mismatch about the phenomenon of non-essential fracture work. Stress-whitened zones can be seen and observed but non-essential fracture work based on curves is a negative value.

Biodegradation of low density polyethylene/starch films exposed to soil burial

2009 ◽  
Vol 34 (1) ◽  
pp. 41-48 ◽  
Author(s):  
Souad Djellalia ◽  
Nassima Benmahmoud ◽  
Tahar Sadoun
Keyword(s):  
Low Density Polyethylene ◽  
Low Density ◽  
Soil Burial ◽  
Starch Films
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