Cohesive zone model

Chandra N, Li H, Shet C, Ghonem H, Some issues in the application of cohesive zone models for metal-ceramic interfaces, Int. J. Solids Structures 39, 2002, 2827-55. 

Adhesive, cohesive zone model, finite volume method, impact wedge peel test, TDCB. 

Our treatment in this section will cover three primary thrusts in modeling dislocation core phenomena. Our first calculations will consider the simplest elastic models of dislocation dissociation. This will be followed by our first foray into mixed atomistic/continuum models in the form of the Peierls-Nabarro cohesive zone model. This hybrid model divides the dislocation into two parts, one of which is treated using linear elasticity and the other of which is considered in light of a continuum model of the atomic-level forces acting across the slip plane of the dislocation. Our analysis will finish with an assessment of the gains made in direct atomistic simulation of dislocation cores. 

Mohammed, H. and Leichti, K.M., Cohesive zone modeling of eracknncleation at bimaterial comers, Journal of the Mechanics and Physics of Solids, 2000,48,735-764. 

Li, S., Thouless, M.D., Waas, A.M., Schroeder, J.A., and Zavattieri, P.D. (2005) Use of a cohesive-zone model to analyze the fracture of a fiber-reinforced polymer-matrix composite. Composites Science and Technology, 65,... 

Lorenzis, L.D. and Zavarise, G. (2009) Cohesive zone modeling of interfacial stresses in plated beams. International Journal of Solids and Structures, 46, 4181—4191. 

Figure 17.10 Implementation of the Cohesive Zone Model (CZM) (a) the Traction Separation Law (TSL), (b) Intrinsic TSL and (c) Extrinsic TSL. The cohesive laws are characterized by the strength, the critical opening and the critical energy release rate [145].

The hybrid discontinuous Galerkin/cohesive zone model (DG/CZM) has been proposed by Mergheim et al. [172] and developed by Radovitzky et al. [173] and Prechtel et al. [174]. The DG method is applied to the non-linear solid mechanics In which the unknown field between bulk elements is considered. It can be combined with the CZM, therefore on the beginning of simulation, the interface elements are inserted between bulk elements. Wu et al. [145] studied composite failures at the microscale using hybrid DG/extrinsic cohesive law framework. 

On the other hand, some other alternative approaches have been developed to model the fracture as the XFEM [194] or the embedded localization method [195], These approaches can also be combined with a cohesive zone model [196]. 

In this work the cohesive zone model previously developed by the authors to simulate fatigue crack growth at interfaces in 2D geometries is extended to 3D cracks under mixed-mode 1/n loading. 

Blackman B R K, Hadavinia H, Kinloch A J, Williams J G (2003), The use of a cohesive zone model to study the fracture of fibre composites and adhesively-bonded joints. International Journal of Fracture, 119, 2546. 

Li S, Thouless M D, Waas A M, Schroeder J A and Zavattieri P D (2005), Use of Mode-I cohesive-zone models to describe the fracture of an adhesively-bonded polymer-matrix composite. Composite Science and Technology, 65,281-293. 

Roe K L, Siegmimd T (2003), An irreversible cohesive zone model for interface fatigue eraek growth simulation. Engineering Fracture Mechanics, 70, 209-232. 

Khoramishad H, Crocombe A D, Katnam K B, Ashcroft 1 A (2010), Predicting fatigue damage in adhesively bonded joints using a cohesive zone model, InternationalJournal of Fatigue,32, 1146-1158. 

Moroni F, Pirondi A (2012), A procedure for the simulation of fatigue crack growth in adhesively bonded joints based on a cohesive zone model and various mixed-mode propagation criteria. Engineering EractureMechanics, 89, 129-138. 

A computational—experimental approach was used by Hopkins et al. (2013) to determine the characteristic interface properties for a polymeric coating bonded to stainless steel. To simulate the bond interaction between the coating and substrate, a user-defined subroutine was used to implement the cohesive zone model. Each simulation consisted of a positioning step in which the polymer was lifted from 0° lying flat along the substrate to 90° directly above the first bonded node of the interface and a pulling step that displaces the polymer arm upward at 90° to the substrate. 

Fig. 4. Schematic mode-1 traction-separation law that is generally useful in cohesive-zone models.

Application of cohesive-zone models to the fracture of adhesive joints... 

---