Implementation, identification and validation of an elasto-plastic-damage model for the finite element simulation of structural bonded joints

Jousset, Pierre; Rachik, Mohamed

doi:10.1016/j.ijadhadh.2014.01.020

Cited by 18 publications

(9 citation statements)

References 22 publications

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“…This behaviour is also hydrostatic pressure dependent and thermal dependent. This leads to complex behaviours which could be described by different models as non-linear viscoelasticity [5] or viscoplasticity [6] alone or coupled elasto-viscoplasticity [7][8][9]/viscoelasticity-viscoplasticity [10]. In the present study, the identification of the BETA-MATE 1496V…”

Section: Introductionmentioning

confidence: 84%

Elasto-viscoplasticity Behaviour of a Structural Adhesive Under Compression Loadings at Low, Moderate and High Strain Rates

Morin¹,

Haugou

Lauro

et al. 2015

J. dynamic behavior mater.

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Crashworthiness performance of automotives by introducing new materials is of high interest based on the global mass' reduction of cars. Bonded techniques are tested at present with respect to the reduction of the mass/ energy's ratio combined with recycling processes. In this study, a compression test program is performed on a bulk structural adhesive under a very large range of strain rates, thus [0.1; 5000]/s. Uniaxial compression tests at 0.1 and 50/s are achieved using a high-speed hydraulic testing machine. A split Hopkinson bar' device made of PA66 is experimented so as to characterize soft materials in the upper domain of strain rates, thus [500; 5000]/s. A special mold is used for the preparation of the adhesive plates. Two sheets are prepared (thickness 4 mm with 1 MPa pressure and 6 mm with 4 MPa pressure) in order to consider the effect of the pressure during the curing process. Water jet technique is used to extract cylindrical samples from the plates with accurate dimensions. The identification of the compression behaviour of the structural adhesive is lead with objective to find material parameters of a modified G'sell model for finite element modeling of crashworthiness.

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Section: Introductionmentioning

confidence: 84%

Elasto-viscoplasticity Behaviour of a Structural Adhesive Under Compression Loadings at Low, Moderate and High Strain Rates

Morin¹,

Haugou

Lauro

et al. 2015

J. dynamic behavior mater.

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“…Finally, a damage propagation law states how the crack propagates through the adhesive interface until it completely loses its load-bearing capacity. Details about the implementation of damage and fracture in the model can be found in [3]. The main features of the model are recalled here, for a better understanding.…”

Section: Pressure Dependent Elasto-plastic-damage Constitutive Modelmentioning

confidence: 99%

“…The identification of the damage and fracture parameters was tackled in [3]. Important features of the parameter identification are recalled here.…”

Section: Identification Of the Elasto-plastic-damage Modelmentioning

confidence: 99%

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Comparison and evaluation of two types of cohesive zone models for the finite element analysis of fracture propagation in industrial bonded structures

Jousset¹,

Rachik²

2014

Engineering Fracture Mechanics

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“…In some cases, viscoelastic models [11] [12] [13] [14] can be perfectly adapted to characterize the time-dependent behaviour and to predict the influence of the strain rate. Other authors have proposed elastoplastic models [15] [16] or viscoplastic models [17] [18] [19] which are characterized by a threshold and a permanent strain. While various models of adhesive behaviour have been presented, the originality of the present approach is that the viscoelastic response is treated in two separate parts, hydrostatic and deviatoric.…”

Section: Introductionmentioning

confidence: 99%

A viscoelastic-viscoplastic model to describe creep and strain rate effects on the mechanical behaviour of adhesively-bonded assemblies

Ilioni

Bădulescu

Carrèere

et al. 2018

International Journal of Adhesion and Adhesives

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International audienceMost of the adhesives used in the marine industry are polymers with a mechanical behaviour which is strongly influenced by the strain rate. Therefore, it is important to predict with accuracy their viscous behaviour. To describe their mechanical behaviour in a bonded joint, a viscoelastic-viscoplastic constitutive law is proposed here. The viscous effects on the elastic behaviour are described using a spectral distribution, which divides the viscous strain as the sum of the strains of several viscous mechanisms, each of them with a different characteristic time and weight. The viscoplastic component of the model permits a better description of the strong non-linear behaviour of the adhesives. The parameters of the constitutive law are obtained using an inverse identification procedure coupled with a finite element model. Two creep tests, in two loading directions, are needed in order to identify the viscoelastic part. The viscoplastic part is identified using monotonic tests. In order to validate the behaviour law and the identification procedure, the adhesive HuntsmanTMAraldite 420 A/B has been investigated and modelled. All the experimental tests have been conducted using the modified Arcan device

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Implementation, identification and validation of an elasto-plastic-damage model for the finite element simulation of structural bonded joints

Cited by 18 publications

References 22 publications

Elasto-viscoplasticity Behaviour of a Structural Adhesive Under Compression Loadings at Low, Moderate and High Strain Rates

Elasto-viscoplasticity Behaviour of a Structural Adhesive Under Compression Loadings at Low, Moderate and High Strain Rates

Comparison and evaluation of two types of cohesive zone models for the finite element analysis of fracture propagation in industrial bonded structures

A viscoelastic-viscoplastic model to describe creep and strain rate effects on the mechanical behaviour of adhesively-bonded assemblies

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