The energy release rate of a pressurized crack in soft elastic materials: effects of surface tension and large deformation

Kinking of a plane strain crack out of an interface between the two dissimilar isotropic elastic materials is analyzed. Analysis is focused on the initiation of kinking and thus the segment of the crack leaving the interface is imagined to be short compared to the segment in the interface. The analysis provides the stress intensity factors and energy release rate of the kinked cracks in terms of the corresponding quantities for the interfacial crack. The energy release rate is enhanced if the crack heads into the more compliant material and is diminished if the crack kinks into the stiff material.

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The energy release rate for hygrothermal coupling elastic materials

Acta Mechanica Sinica ◽

10.1007/s10409-006-0087-5 ◽

2006 ◽

Vol 22 (1) ◽

pp. 28-33 ◽

Cited By ~ 10

Author(s):

Fan Yang ◽

Jun Wang ◽

Dapeng Chen

Keyword(s):

Energy Release Rate ◽

Energy Release ◽

Release Rate ◽

Elastic Materials

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Theoretical study of adhesion energy measurement for film/substrate interface using pressurized blister test: Energy release rate

Measurement ◽

10.1016/j.measurement.2013.04.026 ◽

2013 ◽

Vol 46 (8) ◽

pp. 2278-2287 ◽

Cited By ~ 12

Author(s):

Jun-yi Sun ◽

Shao-hua Qian ◽

Ying-min Li ◽

Xiao-ting He ◽

Zhou-lian Zheng

Keyword(s):

Energy Release Rate ◽

Energy Release ◽

Release Rate ◽

Theoretical Study ◽

Adhesion Energy ◽

Energy Measurement ◽

Blister Test ◽

Substrate Interface ◽

Film Substrate

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How does surface tension affect energy release rate of cracks loaded in Mode I?

Extreme Mechanics Letters ◽

10.1016/j.eml.2015.11.002 ◽

2016 ◽

Vol 6 ◽

pp. 31-36 ◽

Cited By ~ 8

Author(s):

Chung-Yuen Hui ◽

Tianshu Liu ◽

Marie-Emeline Schwaab

Keyword(s):

Surface Tension ◽

Energy Release Rate ◽

Energy Release ◽

Release Rate ◽

Mode I

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Specimen Thickness Dependency of Energy Release Rate of a Gelatin Hydrogel and Glass Substrate Interface

Journal of Tribology ◽

10.1115/1.4041364 ◽

2018 ◽

Vol 141 (2) ◽

Cited By ~ 3

Author(s):

Avinash A. Thakre ◽

Arun K. Singh

Keyword(s):

Energy Release Rate ◽

Energy Release ◽

Release Rate ◽

Polymeric Materials ◽

Interfacial Properties ◽

Specimen Thickness ◽

Soft Solids ◽

Gelatin Hydrogel ◽

Rate Effects ◽

Test Slide

Soft solids, such as rubbers, elastomers, and gels, are the important polymeric materials. A better understanding of their interfacial properties such as friction and adhesion is critical for variety of technological applications. Motivated by the experimental observation that interfacial properties can be modified even without changing the content of a soft solid, the effect of specimen thickness on the energy release rate (G) of a soft gelatin hydrogel is investigated in direct shear test. Slide-hold-slide (SHS) experiments have shown that shear strength decreases, while corresponding crack length increases, with increase in thickness of gel specimens. However, G at static, dynamic and residual strengths increase with specimen thickness. At the end, these observations are explained in light of mixed mode I/II fracture and shear rate effects at the sliding interface.

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

Tire Science and Technology ◽

10.2346/tire.18.460302 ◽

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.

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