Modelling the strength of self-piercing riveted joints

Abstract: Predicting the mechanical strength of self-piercing riveted structures is of prime importance in industry. This chapter describes how numerical simulation can be used to obtain accurate predictive results. First, it is important to account for the mechanical history of the material resulting from the SPR process as input data for the mechanical strength simulation. The use of a coupled damage approach to account for the progressive mechanical degradation of the materials’ properties is recommended. The materials’ properties and damage parameters have to be carefully identified. Inverse analysis is an efficient methodology to obtain the materials’ parameters. Finally, some finite element simulations are presented and validated with respect to mechanical tests. The numerical approach presented here also enables the equivalent elements that can be used at the structure scale to be defined.

[1]  Xin Sun,et al.  Fatigue Behaviors of Self-Piercing Rivets Joining Similar and Dissimilar Sheet Metals , 2007 .

[2]  P. K. Mallick,et al.  Effect of process variables on the static and fatigue properties of self-piercing riveted joints in aluminum alloy 5754 , 2001 .

[3]  M. Langseth,et al.  Self-piercing riveting process: An experimental and numerical investigation , 2006 .

[4]  P. Mallick,et al.  Fatigue of self-piercing riveted joints in aluminum alloy 6111 , 2003 .

[5]  T. Wierzbicki,et al.  A new model of metal plasticity and fracture with pressure and Lode dependence , 2008 .

[6]  Jean-Loup Chenot,et al.  Numerical treatment of contact and friction in FE simulation of forming processes , 2002 .

[7]  Determination of plastic properties of metals by instrumented indentation using a stochastic optimization algorithm , 2009 .

[8]  Zbigniew Michalewicz,et al.  Handbook of Evolutionary Computation , 1997 .

[9]  Bertrand Langrand,et al.  Détermination expérimentale du comportement mécanique et de critère de rupture d'assemblages sous chargements mixtes. Application aux rivets et points soudés , 2003 .

[10]  T. Wierzbicki,et al.  Calibration and evaluation of seven fracture models , 2005 .

[11]  J. Chaboche.  Constitutive equations for cyclic plasticity and cyclic viscoplasticity , 1989 .

[12]  P. Bouchard,et al.  Numerical modelling of crack propagation: automatic remeshing and comparison of different criteria , 2003 .

[13]  Pierre-Olivier Bouchard,et al.  An enhanced Lemaitre model formulation for materials processing damage computation , 2011 .

[14]  D. M. Tracey,et al.  On the ductile enlargement of voids in triaxial stress fields , 1969 .

[15]  Z. Hashin,et al.  A method to produce uniform plane-stress states with applications to fiber-reinforced materials , 1978 .

[16]  M. Arcan,et al.  A mixed mode fracture specimen for mode II dominant deformation , 1984 .

[17]  A. Gurson.  Continuum Theory of Ductile Rupture by Void Nucleation and Growth: Part I—Yield Criteria and Flow Rules for Porous Ductile Media , 1977 .

[18]  A. Needleman,et al.  Analysis of the cup-cone fracture in a round tensile bar , 1984 .

[19]  Johannes Gårdstam.  Simulation of mechanical joining for automotive applications , 2006 .

[20]  F. A. McClintock,et al.  A Criterion for Ductile Fracture by the Growth of Holes , 1968 .

[21]  Li Han,et al.  The Effect of Pre-Straining on the Mechanical Behaviour of Self-Piercing Riveted Aluminium Alloy Sheets , 2005 .

[22]  Michael A. Sutton,et al.  A combined modeling–experimental study of the crack opening displacement fracture criterion for characterization of stable crack growth under mixed mode I/II loading in thin sheet materials , 2000 .

[23]  S. Shima,et al.  Criteria for ductile fracture and their applications , 1980 .

[24]  Jean Lemaitre,et al.  A Course on Damage Mechanics , 1992 .

[25]  Pierre-Olivier Bouchard,et al.  Kriging metamodel global optimization of clinching joining processes accounting for ductile damage , 2013 .

[26]  Alain Combescure,et al.  Non-linear and failure behaviour of spotwelds: a “global” finite element and experiments in pure and mixed modes I/II , 2004 .

[27]  Pierre-Olivier Bouchard,et al.  Numerical modeling of self-pierce riveting—From riveting process modeling down to structural analysis , 2008 .

[28]  Christian Westerberg,et al.  Finite Element Simulation of Crash Testing of Self-Piercing Rivet Joints, Peel Specimen , 2002 .

[29]  Pierre-Olivier Bouchard,et al.  Crack propagation modelling using an advanced remeshing technique , 2000 .