Interface strength, work of adhesion and plasticity in the peel test

Wei, Yueguang; Hutchinson, John W.

doi:10.1007/978-94-017-2854-6_16

Cited by 104 publications

(139 citation statements)

References 8 publications

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“…The right hand side part of Fig. 1 shows the cohesive zone (CZ) model by which the definition of the interface parameters is given [3][4][5][8][9][10]17,18]. There are two important parameters ( 0 ,σ ) in the CZ model.…”

Section: H Zhao · Y Wei (B)mentioning

confidence: 99%

“…A single layer of CZ elements [3][4][5][8][9][10]15,18] is employed to represent the adhesive layer through adopting double-nodal-number method along interface line. The interface parameters governing the traction separation law are the interface fracture toughness 0 , the separation strengtĥ σ , the critical relative displacement at the crack tip δ c = (δ c n 2 + δ c t 2 ) 1/2 , the ratio of critical separation to shear displacements δ c n /δ c t and the shape factors λ 1 and λ 2 (see Fig.…”

Section: Fe Model With Cz Modelmentioning

confidence: 99%

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Inverse analysis determining interfacial properties between metal film and ceramic substrate with an adhesive layer

Zhao

Wei

2008

Acta Mech Sin

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In the present study, peel tests and inverse analysis were performed to determine the interfacial mechanical parameters for the metal film/ceramic system with an epoxy interface layer between film and ceramic. Al films with a series of thicknesses between 20 and 250 µm and three peel angles of 90 • , 135 • and 180 • were considered. A finite element model with the cohesive zone elements was used to simulate the peeling process. The finite element results were taken as the training data of a neural network in the inverse analysis. The interfacial cohesive energy and the separation strength can be determined based on the inverse analysis and peel experimental result

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Section: H Zhao · Y Wei (B)mentioning

confidence: 99%

Section: Fe Model With Cz Modelmentioning

confidence: 99%

Inverse analysis determining interfacial properties between metal film and ceramic substrate with an adhesive layer

Zhao

Wei

2008

Acta Mech Sin

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“…The failure character changes from the indenter grooving growth to the delaminated film strap formation and growth (or post-scratch process). For simplifying the analysis, the problem is divided into two sub-problems [8]. One problem is "plate bend" under elastic-plastic large deformation for the delaminated thin film part BCD, see figure 1(a).…”

Section: Description Of Micro-scratch Testmentioning

confidence: 99%

“…However, it is difficult to use a simple model to describe the strong influence of plastic deformation on the micro-scratch behavior. It is well known that plastic deformation has a strong shielding effect on the interface cracking [8].…”

Section: Introductionmentioning

confidence: 99%

Failure Mechanism Researches of Material Surface and Interface in Micro-Scratch Test

2002

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In the present research, the adhesion properties and failure mechanisms for a ductile thin film on a silicon substrate (Ni/Si) are studied experimentally, and are simulated theoretically. In the experimental research, the relations of the horizontal driving force, vertical displacement and the frictional coefficients with horizontal displacement are measured. Furthermore, the variation of the total energy release rate and the frictional coefficient between contact surfaces are measured through obtaining a frictional effect law. The law displays that the frictional influences on the energy release rate of the total system weakly depend on the thin film thickness. This conclusion leads to that the frictional effect can be eliminated in the toughness ratio relation approximately. So that one can directly obtain the interfacial adhesion toughness from measurements in the micro-scratching test. In addition, the micro-scratching process for the ductile thin film/brittle substrate systems is simulated using the double cohesive zone model. Prediction results of the energy release rate are obtained, and are compared with the experimental results obtained in the present research.

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“…In order to determine C 0 using the peel test, in the previous methods, a beam bending model was adopted [4,5]. However, this model is suitable for the cases of the thick film and weak interface adhesion [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Determination of interfacial properties between metal film and ceramic substrate with an adhesive layer

2009

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a b s t r a c tPeel test measurements and inverse analysis to determine the interfacial mechanical parameters for the metal film/ceramic system are performed, considering that there exist an epoxy interface layer between film and ceramic. In the present investigation, Al films with a series of thicknesses between 20 and 250 lm and three peel angles of 90, 135 and 180°are considered. A finite element model with the cohesive zone elements is used to simulate the peel test process. The finite element results are taken as the training data of a neural network in the inverse analysis. The interfacial cohesive energy and the separation strength can be determined based on the inverse analysis and peel experimental result.

show abstract

Interface strength, work of adhesion and plasticity in the peel test

Cited by 104 publications

References 8 publications

Inverse analysis determining interfacial properties between metal film and ceramic substrate with an adhesive layer

Inverse analysis determining interfacial properties between metal film and ceramic substrate with an adhesive layer

Failure Mechanism Researches of Material Surface and Interface in Micro-Scratch Test

Determination of interfacial properties between metal film and ceramic substrate with an adhesive layer

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