Mesomodeling of delamination: towards industrial applications

Allix, Olivier; Blanchard, Laurent

doi:10.1016/j.compscitech.2004.12.023

Cited by 58 publications

(54 citation statements)

References 25 publications

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“…The model predicts different modes of composite damage and is formulated by introducing scalar damage variables that degrade the initial material properties. Variations of the Ladevèze meso-model have been implemented successfully by a number of researchers [12][13][14][15].…”

Section: Composite Damage Model Descriptionmentioning

confidence: 99%

Simulating damage and delamination in fibre metal laminate joints using a three-dimensional damage model with cohesive elements and damage regularisation

Frizzell

McCarthy

2011

Composites Science and Technology

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Section: Composite Damage Model Descriptionmentioning

confidence: 99%

Simulating damage and delamination in fibre metal laminate joints using a three-dimensional damage model with cohesive elements and damage regularisation

Frizzell

McCarthy

2011

Composites Science and Technology

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“…This model adopted for delamination is often used in the literature [5,20,33] even if this expression (Eq. 5) is original.…”

Section: Delamination Modelingmentioning

confidence: 99%

“…Some models in the literature [5-7, 16, 17] take into account this interaction due to explicit relations between the damage variables of matrix cracking in the ply and the damage variables of delamination between plies. Another way to [19] model this interaction is to allow for the discontinuity created by matrix cracks, in order to naturally account for this interaction [5,18,19]. Indeed this discontinuity seems essential for the formation of impact damage [20] and should be modeled to correctly simulate this damage morphology.…”

Section: Impact Damagementioning

confidence: 99%

Discrete Impact Modeling of Inter- and Intra-laminar Failure in Composites

Hongkarnjanakul

Rivallant

Barrau

2012

Solid Mechanics and Its Applications

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The goal of this study is to initiate a "test-calculation dialogue" on low velocity/low energy impact tests in laminated composites. The different types of impact damage developing during an impact test, i.e. matrix cracking, fiber failure, interface delamination and permanent indentation, are simulated. The bibliography shows a general lack of detailed validation of impact modeling and the originality of this work is to use refined and complementary experimental data to build and validate a numerical model. The good correlation between the model and this refined experimental database gave us relative confidence in the model, despite a few nonstandard material parameters.Permanent indentation was particularly focused and studied. Then we propose an original scenario to create permanent indentation, with a debris blocking phenomenon in the matrix cracks, as well as the corresponding model. The fiber failure model was set up using an original formulation between the integration points of the volume element in order to dissipate a constant energy release rate per unit area. Finally the model was used to evaluate the distribution of the dissipated energy among the different damage types, and demonstrated an interesting distribution between fiber failure and delamination.

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“…Despite recent improvements achieved in numerical simulation [19][20][21], such phenomena as delamination or strain rate influence are still poorly represented and are the aims of numerous studies nowadays. Experimentation is consequently the only reliable validation method but its setting up can give rise to some problems of cost, of place or of equipment especially for airplane or railway structures.…”

Section: Analytical Model For Similitude Analysismentioning

confidence: 99%

“…Therefore, the stress tensor becomes as Eq. (19) according to the state law and the complementary law.…”

Section: Modeling the Effects Of Strain Rate On The Behavior Of The Lmentioning

confidence: 99%

Composites and Dynamic Failures: Experimental and Numerical Solving Strategies and Solutions

Coutellier

2012

Dynamic Failure of Composite and Sandwich Structures

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The constraints related to structures design in the field of transportation are increasingly complex in order to comply with safety standards. Composite materials being increasingly widespread within these structures, their behavior must therefore be more accurately mastered. Current numerical tools can now permit an accurate simulation in the static field, but concerning fast transient problems, the available numerical methods are not optimal yet. Starting from concrete cases, this chapter introduces problem solving strategies. A procedure is then presented to improve numerical simulations in the field of rapid dynamics. It includes the establishment of experimental protocols to assist in a thorough understanding of materials behavior. These experimental studies can then provide models, laws and methodologies to better simulate the behavior of composite structures under dynamic load. However experimentation is sometimes complicated by the size of structures. The similitude techniques can then provide a solution. Similitude techniques are used to study composite materials subjected to impact. We propose here an approach allowing modeling and numerical simulation validated on an industrial case.

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Mesomodeling of delamination: towards industrial applications

Cited by 58 publications

References 25 publications

Simulating damage and delamination in fibre metal laminate joints using a three-dimensional damage model with cohesive elements and damage regularisation

Simulating damage and delamination in fibre metal laminate joints using a three-dimensional damage model with cohesive elements and damage regularisation

Discrete Impact Modeling of Inter- and Intra-laminar Failure in Composites

Composites and Dynamic Failures: Experimental and Numerical Solving Strategies and Solutions

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