A Progressive Damage Model for the Prediction of Fatigue Crack Growth in Bonded Joints

A procedure to predict fatigue crack growth in bonded joints is developed in this work within the framework of cohesive zone modelling and finite element analysis. The idea is to link the fatigue damage rate in the cohesive elements to the macroscopic crack growth rate through a damage homogenisation criterion. In this way, the experimental crack growth rate is related directly to damage evolution in the cohesive zone, that is, no additional parameters have to be tuned beside the quasi-static cohesive zone parameters. The procedure was implemented in the ABAQUS finite element software using the USDFLD subroutine. In order to evaluate the crack growth rate automatically, the strain energy release rate (crack driving force) was calculated and updated automatically within the subroutine. Mode I and Mode II loading cases have been dealt with and the implementation for Mixed Mode I/II is under way.

[1]  Katerina D. Papoulia,et al.  A cohesive zone model for fatigue crack growth allowing for crack retardation , 2009 .

[2]  Thomas Pardoen,et al.  Numerical analysis of the energy contributions in peel tests: A steady-state multilevel finite element approach , 2008 .

[3]  Pedro P. Camanho,et al.  Simulation of delamination in composites under high-cycle fatigue , 2007 .

[4]  Marino Quaresimin,et al.  Life prediction of bonded joints in composite materials , 2006 .

[5]  Ugo Galvanetto,et al.  On the numerical simulation of fatigue driven delamination with interface elements , 2006 .

[6]  Philippe H. Geubelle,et al.  A cohesive model for fatigue failure of polymers , 2005 .

[7]  Ian A. Ashcroft,et al.  Finite element prediction of fatigue crack propagation lifetime in composite bonded joints , 2004 .

[8]  Chad M. Landis,et al.  On the determination of the cohesive zone properties of an adhesive layer from the analysis of the wedge-peel test , 2003 .

[9]  José Costa,et al.  Fatigue behaviour of composite adhesive lap joints , 2002 .

[10]  Ian A. Ashcroft,et al.  Numerical prediction of fatigue crack propagation lifetime in adhesively bonded structures , 2002 .

[11]  Shankar Mall,et al.  A cohesive zone model for fatigue crack growth in quasibrittle materials , 2001 .

[12]  Homayoun Hadavinia,et al.  Predicting the service-life of adhesively-bonded joints , 2000 .

[13]  Kenneth M. Liechti,et al.  COHESIVE ZONE MODELING OF CRACK NUCLEATION AT BIMATERIAL CORNERS , 2000 .

[14]  H. Nakayama,et al.  Evaluation of the fatigue strength of adhesively bonded CFRP/metal single and single-step double-lap joints , 1999 .

[15]  G. Björkman,et al.  How defects in an adhesive layer influence the fatigue strength of bonded steel-sheet specimens , 1999 .

[16]  M. D. Thouless,et al.  Numerical simulations of adhesively-bonded beams failing with extensive plastic deformation , 1999 .

[17]  Viggo Tvergaard,et al.  On the toughness of ductile adhesive joints , 1996 .

[18]  S. Krenk,et al.  Fatigue analysis and testing of adhesive joints , 1996 .

[19]  Steen Krenk,et al.  Energy release rate of symmetric adhesive joints , 1992 .

[20]  J. Rice A path-independent integral and the approximate analysis of strain , 1968 .

[21]  A. Waas,et al.  Mixed-mode cohesive-zone models for fracture of an adhesively bonded polymer–matrix composite , 2006 .

[22]  A. Kinloch,et al.  The prediction of crack growth in bonded joints under cyclic-fatigue loading. I. Experimental studies , 2003 .

[23]  Homayoun Hadavinia,et al.  The prediction of crack growth in bonded joints under cyclic-fatigue loading II: analytical and finite element studies , 2003 .

[24]  T. Siegmund,et al.  An irreversible cohesive zone model for interface fatigue crack growth simulation , 2003 .

[25]  J. K. Spelt,et al.  Observations of fatigue crack initiation and propagation in an epoxy adhesive , 1997 .

[26]  J. G. Williams,et al.  Corrections for mode II fracture toughness specimens of composites materials , 1992 .

[27]  J. Lemaître A CONTINUOUS DAMAGE MECHANICS MODEL FOR DUCTILE FRACTURE , 1985 .