Observations of crack closure

1972 ◽  
Vol 8 (4) ◽  
Author(s):  
R. Roberts ◽  
R.A. Schmidt
Keyword(s):  
Crack Closure

Curvilinear crack closure in a sheet element under the influence of a temperature field

2016 ◽  
Vol 19 (4) ◽  
pp. 36-43 ◽  
Author(s):  
V. Mirsalimov ◽  
◽  
A. Mustafayev ◽  
Keyword(s):  
Temperature Field ◽  
Crack Closure ◽  
Curvilinear Crack

Calculating Energy Release Rate as a Function of Crack Length Using a Multiple-Step Crack Closure Technique in Tire Finite Element Models

2018 ◽  
Vol 46 (3) ◽  
pp. 130-152
Author(s):  
Dennis S. Kelliher
Keyword(s):  
Finite Element ◽  
Energy Release Rate ◽  
Crack Length ◽  
Energy Release ◽  
Crack Closure ◽  
Release Rate ◽  
Fatigue Behavior ◽  
Three Dimensions ◽  
Quantitative Prediction ◽  
Closure Technique

ABSTRACT When performing predictive durability analyses on tires using finite element methods, it is generally recognized that energy release rate (ERR) is the best measure by which to characterize the fatigue behavior of rubber. By addressing actual cracks in a simulation geometry, ERR provides a more appropriate durability criterion than the strain energy density (SED) of geometries without cracks. If determined as a function of crack length and loading history, and augmented with material crack growth properties, ERR allows for a quantitative prediction of fatigue life. Complications arise, however, from extra steps required to implement the calculation of ERR within the analysis process. This article presents an overview and some details of a method to perform such analyses. The method involves a preprocessing step that automates the creation of a ribbon crack within an axisymmetric-geometry finite element model at a predetermined location. After inflating and expanding to three dimensions to fully load the tire against a surface, full ribbon sections of the crack are then incrementally closed through multiple solution steps, finally achieving complete closure. A postprocessing step is developed to determine ERR as a function of crack length from this enforced crack closure technique. This includes an innovative approach to calculating ERR as the crack length approaches zero.

A comparative study of fatigue crack closure

1977 ◽  
Author(s):  
J. RUEPING ◽  
B. HILLBERRY ◽  
S. METTLER ◽  
W. STEVENSON
Keyword(s):  
Fatigue Crack ◽  
Comparative Study ◽  
Crack Closure ◽  
Fatigue Crack Closure

A Review of Crack Closure

1984 ◽  
Author(s):  
S. Banerjee
Keyword(s):  
Crack Closure

Characterization of Discontinuous Crack Closure Behavior after the Application of a Single Overload Cycle

2021 ◽  
pp. 103028
Author(s):  
Giancarlo Luis Gómez Gonzáles ◽  
Julián Andrés Ortiz González ◽  
José Luiz de França Freire
Keyword(s):  
Crack Closure ◽  
Single Overload
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