Effects of graded properties on the impact response of an interface crack in a coating/substrate system subjected to antiplane deformation

Lee, Ho‐Joon; Choi, Hong‐Shik

doi:10.1002/zamm.200410221

Cited by 6 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Most recently, Choi and Paulino (2010) performed the analysis of interfacial cracking in a graded coating/substrate system loaded by a frictional sliding flat punch. The elastodynamic response of a crack in media with the graded properties was further dealt with by Choi (2004Choi ( , 2006Choi ( , 2007b and Lee and Choi (2006).…”

Section: Introductionmentioning

confidence: 99%

Thermoelastic problem of steady-state heat flows disturbed by a crack at an arbitrary angle to the graded interfacial zone in bonded materials

Choi

2011

International Journal of Solids and Structures

Self Cite

View full text Add to dashboard Cite

a b s t r a c tPlane thermoelasticity solutions are presented for the problem of a crack in bonded materials with a graded interfacial zone. The interfacial zone is treated as a nonhomogeneous interlayer having spatially varying thermoelastic moduli between dissimilar, homogeneous half-planes. The crack is assumed to exist in one of the half-planes at an arbitrary angle to the graded interfacial zone, disturbing uniform steady-state heat flows. The Fourier integral transform method is employed in conjunction with the coordinate transformations of field variables in the basic thermoelasticity equations. Formulation of the current nonisothermal crack problem lends itself to the derivation of two sets of Cauchy-type singular integral equations for heat conduction and thermal stress analyses. The heat-flux intensity factors and the thermal-stress intensity factors are defined and evaluated in order to quantify the singular characters of temperature gradients and thermal stresses, respectively, in the near-tip region. Numerical results include the variations of such crack-tip field intensity factors versus the crack orientation angle for various combinations of material and geometric parameters of the dissimilar media bonded through the thermoelastically graded interfacial zone. The dependence of the near-tip thermoelastic singular field on the degree of crack-surface partial insulation is also addressed.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermoelastic problem of steady-state heat flows disturbed by a crack at an arbitrary angle to the graded interfacial zone in bonded materials

Choi

2011

International Journal of Solids and Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…Feng et al (2005) have analysed torsional impact on a functionally graded interlayer system and concluded that the dynamic SIF is altered by the material property inhomogeneity. Lee and Choi (2006) have analysed the mode-3 impact problem solving a Cauchy singular integral equation. They extracted the SIFs for a stationary crack along the interface of a functionally graded bimaterial system.…”

Section: Introductionmentioning

confidence: 99%

Mode-3 spontaneous crack propagation along functionally graded bimaterial interfaces

Kubair

Bhanu-Chandar

2007

Journal of the Mechanics and Physics of Solids

View full text Add to dashboard Cite

“…Hence, the effect of material gradients was shown to manifest itself through the values of crack-tip stress intensity factors. A number of additional contributions in the quasi-static crack problems were reported, among others, by Choi (2001aChoi ( , 2007a, Paulino et al (2003) and Chan et al (2008), while those addressing the elastodynamic response to impact loading are due to Choi (2004Choi ( , 2006Choi ( , 2007b, Lee & Choi (2006) and Song & Paulino (2006). In addition, the crack problems involving the thermoelastically graded properties were dealt with by Lee & Erdogan (1998), Choi (2003), Walters et al (2004) and Dag (2006).…”

Section: Introductionmentioning

confidence: 99%

Interfacial cracking in a graded coating/substrate system loaded by a frictional sliding flat punch

Choi

Paulino

2009

Proc. R. Soc. A.

Self Cite

View full text Add to dashboard Cite

An analysis of a coupled plane elasticity problem of crack/contact mechanics for a coating/substrate system with functionally graded properties is performed, where the rigid flat punch slides over the surface of the coated system that contains a crack. The graded material is treated as a non-homogeneous interlayer between dissimilar, homogeneous phases of the coated medium and the crack is assumed to exist along the interface between the interlayer and the substrate. Based on the Fourier integral transform method and the transfer matrix approach, formulation of the current coupled mixed boundary value problem lends itself to the derivation of a set of three simultaneous Cauchy-type singular integral equations. In the numerical results, the emphasis is placed on the investigation of interactions between the contact stress field and the crack-tip behaviour for various combinations of material, geometric and loading parameters of the coated system. Specifically, effects of interfacial cracking on the distributions of the contact pressure and the in-plane stress component along the coating surface are examined and the mixed-mode stress intensity factors evaluated from the crack-tip stress field with the square-root singularity are provided as a function of punch location. Further addressed is the quantification of the singular character of contact pressure distributions at the trailing and leading edges of the flat punch in terms of the punch-edge stress intensity factors. Implicit in this particular analysis of the coupled crack/contact problem presented henceforth is that the crack closure behaviour under the compressive contact stress field is not taken into account, ignoring the influence of crack-face contact and friction.

show abstract

Effects of graded properties on the impact response of an interface crack in a coating/substrate system subjected to antiplane deformation

Cited by 6 publications

References 22 publications

Thermoelastic problem of steady-state heat flows disturbed by a crack at an arbitrary angle to the graded interfacial zone in bonded materials

Thermoelastic problem of steady-state heat flows disturbed by a crack at an arbitrary angle to the graded interfacial zone in bonded materials

Mode-3 spontaneous crack propagation along functionally graded bimaterial interfaces

Interfacial cracking in a graded coating/substrate system loaded by a frictional sliding flat punch

Contact Info

Product

Resources

About