Sensitivity of post yield axial deformation properties of high-density ethylene/α-olefin copolymers in relation to molecular structure and slow crack growth resistance

2018 ◽  
Vol 72 ◽  
pp. 285-297 ◽  
Author(s):  
Suleyman Deveci ◽  
Senthil Kumar Kaliappan ◽  
Joel Fawaz ◽  
Umesh Gadgoli ◽  
Bhagabata Das
Author(s):  
Haiying Zhang ◽  
Zhenwen Zhou ◽  
Alexander Chudnovsky

Crack layer model provides a comprehensive foundation for modeling of fracture growth, failure analysis, and lifetime prediction. During the past two decades, it has been widely applied for modeling various aspects of brittle fracture in general. This paper illustrates in details the procedure of implementation by an example of slow crack growth in a commercialized high-density polyethylene undergoing creep conditions. Firstly, we determine experimentally the basic parameters employed in constitutive equations of crack layer model such as draw ratio λ, the specific energy of transformation γtr, and drawing stress σdr, etc.. Secondly, we implement crack layer model numerically in lab-developed “Simulator”. The paper provides a paradigm for implementation of crack layer model in slow crack growth, and a blueprint for potential software development that can be used in ranking and the lifetime assessment of a large set of engineering polymers.


2019 ◽  
Vol 39 (2-3) ◽  
pp. 641-646 ◽  
Author(s):  
Fei Zhang ◽  
Jérôme Chevalier ◽  
Christian Olagnon ◽  
Shuigen Huang ◽  
Wout Veulemans ◽  
...  

Author(s):  
Mario Messiha ◽  
Andreas Frank ◽  
Thomas Koch ◽  
Florian Arbeiter ◽  
Gerald Pinter

2008 ◽  
Vol 48 (5) ◽  
pp. 925-933 ◽  
Author(s):  
Rafael A. García ◽  
A. Carrero ◽  
M. Aroca ◽  
O. Prieto ◽  
C. Domínguez

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