Simulation of fiber debonding with friction in a model composite pushout test

Lin, Guoyu; Geubelle, Philippe H.; Sottos, Nancy R.

doi:10.1016/s0020-7683(01)00085-3

Cited by 82 publications

(54 citation statements)

References 24 publications

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“…In Equation (16), the loading/unloading conditions are accounted for. From Equations (16) and (17), it follows that for a monotonic process the interface response is linear elastic (i.e. D = 0) as long as 0.…”

Section: Remark 21mentioning

confidence: 99%

“…In presence of friction, being s 1 0, Equations (16) and (17) show that the damage evolves only as a function of s 2 . However, the total dissipated energy in mode II does not equate G cII at the end of the decohesion process (D = 1), but it is rather the sum of G cII and of the energy dissipated by friction.…”

Section: Remark 21mentioning

confidence: 99%

“…s 1 0, complete damage is reached when s 2 = s c2 regardless of the compressive stress. The dependence of the damage evolution on the compressive stress can be introduced in the model by suitably modifying the second of Equation (17), for those cases in which this effect could be significant. Table I.…”

Section: Remark 21mentioning

confidence: 99%

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Combining interface damage and friction in a cohesive‐zone model

Alfano

Sacco

2006

Numerical Meth Engineering

263

150

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SUMMARYA new method to combine interface damage and friction in a cohesive-zone model is proposed. Starting from the mesomechanical assumption, typically made in a damage-mechanics approach, whereby a representative elementary area of the interface can be additively decomposed into an undamaged and a fully damaged part, the main idea consists of assuming that friction occurs only on the fully damaged part. The gradual increase of the friction effect is then a natural outcome of the gradual increase of the interface damage from the initial undamaged state to the complete decohesion. Suitable kinematic and static hypotheses are made in order to develop the interface model whereas no special assumptions are required on the damage evolution equations and on the friction law. Here, the Crisfield's interface model is used for the damage evolution and a simple Coulomb friction relationship is adopted. Numerical and analytical results for two types of constitutive problem show the effectiveness of the model to capture all the main features of the combined effect of interface damage and friction. A finite-step interface law has then been derived and implemented in a finite-element code via interface elements. The results of the simulations made for a fibre push-out test and a masonry wall loaded in compression and shear are then presented and compared with available experimental results. They show the effectiveness of the proposed model to predict the failure mechanisms and the overall structural response for the analysed problems.

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Section: Remark 21mentioning

confidence: 99%

Section: Remark 21mentioning

confidence: 99%

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Combining interface damage and friction in a cohesive‐zone model

Alfano

Sacco

2006

Numerical Meth Engineering

263

150

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“…Within a thermomechanical framework Özdemir et al (2010), Willam et al (2004), Fagerström and Larsson (2008), Fleischhauer et al (2013) studied the effects of degradation of the cohesive interface on thermal properties. The coupling of an interface damage model and friction is provided in (Alfano and Sacco 2006;Chaboche et al 1997;Lin et al 2001;Parrinello et al 2009;Raous 2011, among others) using cohesive zone models.…”

Section: State-of-the-art Review Of Interface Elasticitymentioning

confidence: 99%

Coherent Energetic Interfaces Accounting for In-Plane Degradation

Esmaeili¹,

Javili²,

Steinmann³

2017

Defect and Material Mechanics

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Interfaces can play a dominant role in the overall response of a body. The importance of interfaces is particularly appreciated at small length scales due to large area to volume ratios. From the mechanical point of view, this scale dependent characteristic can be captured by endowing a coherent interface with its own elastic resistance as proposed by the interface elasticity theory. This theory proves to be an extremely powerful tool to explain size effects and to predict the behavior of nano-materials. To date, interface elasticity theory only accounts for the elastic response of coherent interfaces and obviously lacks an explanation for inelastic interface behavior such as damage or plasticity. The objective of this contribution is to extend interface elasticity theory to account for damage of coherent interfaces. To this end, a thermodynamically consistent interface elasticity theory with damage is proposed. A local damage model for the interface is presented and is extended towards a non-local damage model. The non-linear governing equations and the weak forms A. Esmaeili · P. Steinmann (B) Chair of Applied Mechanics, University of Erlangen-Nuremberg, Egerlandstrasse 5, 91058 Erlangen, Germany e-mail: paul.steinmann@ltm.uni-erlangen.de A. Esmaeili e-mail: ali.esmaeili@ltm.uni-erlangen.de A. Javili Department of Mechanical Engineering, Bilkent University, 06800 Ankara, Turkey e-mail: ajavili@bilkent.edu.tr thereof are derived. The numerical implementation is carried out using the finite element method and consistent tangents are listed. The computational algorithms are given in detail. Finally, a series of numerical examples is studied to provide further insight into the problem and to carefully elucidate key features of the proposed theory.

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“…displacement jump Δ across the interface (Lin et al 2001). The use of cohesive zone allows a better control over the debonding process.…”

Section: Debonding Processmentioning

confidence: 99%