The use of crack layer theory to predict the lifetime of the fatigue crack growth of high density polyethylene

2009 ◽  
Vol 49 (7) ◽  
pp. 1421-1428 ◽  
Author(s):  
Byoung-Ho Choi ◽  
Werner Balika ◽  
Alexander Chudnovsky ◽  
Gerald Pinter ◽  
Reinhold W. Lang
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
High Density Polyethylene ◽  
High Density ◽  
Crack Layer

Application of Crack Layer in Modeling of Slow Crack Growth in High-Density Polyethylene

2013 ◽  
Author(s):  
Haiying Zhang ◽  
Zhenwen Zhou ◽  
Alexander Chudnovsky
Keyword(s):  
Crack Growth ◽  
High Density Polyethylene ◽  
Slow Crack Growth ◽  
Growth Failure ◽  
High Density ◽  
Large Set ◽  
Layer Model ◽  
Crack Layer ◽  
Basic Parameters ◽  
Engineering Polymers

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.

scholarly journals Delaying Effect of High-Density Electric Current on Fatigue Crack Growth in A6061-T6 Aluminum Alloy

2016 ◽  
Vol 57 (12) ◽  
pp. 2104-2109
Author(s):  
Jaewoong Jung ◽  
Yang Ju ◽  
Yasuyuki Morita ◽  
Yuhki Toku ◽  
Yoshihiko Uematsu
Keyword(s):  
Aluminum Alloy ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Electric Current ◽  
Crack Growth ◽  
High Density
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