Comparison of models for transverse ply cracks in composite laminates

McCartney, L.N.; Schoeppner, G. A.; Becker, Wilfried

doi:10.1016/s0266-3538(00)00030-0

Cited by 77 publications

(40 citation statements)

References 21 publications

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“…Shear-lag analyses and variational models are the most widely used approaches, with the Hashin's variational model [6] being simple and consistent, although rather inaccurate in the case of large or small cracked layer thickness. McCartney and Schoeppner [7,8] have proposed most exact solutions involving complex numerical routines. In most cases the models are restricted to the prediction of some elastic parameters (mainly the longitudinal laminate Young's Modulus, x E ) of a general cross-ply composite system.…”

Section: Introductionmentioning

confidence: 99%

Matrix cracking in polymeric composites laminates: Modelling and experiments

Katerelos

Kashtalyan

Soutis

et al. 2008

Composites Science and Technology

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Section: Introductionmentioning

confidence: 99%

Matrix cracking in polymeric composites laminates: Modelling and experiments

Katerelos

Kashtalyan

Soutis

et al. 2008

Composites Science and Technology

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“…Most of the micromechanics models are focused on an approximate description of the local stress distribution in the repeating element between two cracks, which is further used to determine certain thermo-elastic constant (most often the axial modulus or the Poisson's ratio which are easy to determine experimentally). The simplest calculation schemes used are based on shear lag assumption [3,4] or variational principles [5][6][7][8]. Most of the analytical solutions are applicable to cross-ply type of laminates with cracks in 90-layers only.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the analytical solutions are applicable to cross-ply type of laminates with cracks in 90-layers only. The most accurate numerical routines based on Reissner's variational principle are presented in [8]. An "equivalent constraint model"…”

Section: Introductionmentioning

confidence: 99%

Physical interpretation of parameters in synergistic continuum damage mechanics model for laminates

Vārna¹

2008

Composites Science and Technology

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“…Several micromechanical models of transverse matrix cracks that have been proposed in the literature [19,28] can be used within the framework developed here. The micromechanical model proposed by Tan and Nuismer [17,18] accounts for the effects of the adjoining plies on the homogenized elastic properties of a cracked ply.…”

Section: Micromechanical Modelmentioning

confidence: 99%

“…Alternative methods based on the combination of elastic analysis of cracked plies and finite Fracture Mechanics provide the basis for an accurate representation of the response of composite materials [17]- [28]. Micromechanical models have been developed to predict the initiation and evolution of transverse matrix cracks under either in-plane shear or transverse tension.…”

Section: Introductionmentioning

confidence: 99%

A Micromechanics-Based Damage Model for the Strength Prediction of Composite Laminates

Camanho¹,

Mayugo

Maimí

et al.

III European Conference on Computational Mechanics

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The prediction of the failure of composite laminates subjected to multi-axial loading in regions with mild stress gradients is of considerable interest for some aerospace applications such as pressurized vessels. In such components, which are devoid of notches or other stress concentrations, matrix cracks can accumulate prior to the localization of damage along a narrow fracture path.The prediction of the onset of ply damage can be accomplished by using ply-level failure criteria [1]- [2]. To predict ultimate failure of a laminate the 'ply-discount' method is normally used. The ply discount method reduces by an empirical amount the elastic properties of a damaged ply as a function of the type of damage predicted. Such an approach is not rigorous for the simulation of the progressive accumulation of transverse matrix cracks.The main objective of the current work is to develop an alternative method to predict the onset of ply damage and ultimate failure of a laminate. The failure criteria used to predict damage onset are the LaRC03 failure criteria [2].A micromechanical model of a laminate containing matrix transverse cracks under multi-axial loading is proposed ( Figure 1). The model proposed can predict the increased strength of a ply when it is embedded in a multidirectional laminate [3], and it relates the multi-axial strain state to the density of transverse matrix cracks.Based on the micromechanical analyses, a new model is formulated in the framework of damage mechanics. The characteristics of the constitutive model, e.g. the free energy, the damage evolution functions and the loading-unloading conditions are based on the micromechanical model. [

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Comparison of models for transverse ply cracks in composite laminates

Cited by 77 publications

References 21 publications

Matrix cracking in polymeric composites laminates: Modelling and experiments

Matrix cracking in polymeric composites laminates: Modelling and experiments

Physical interpretation of parameters in synergistic continuum damage mechanics model for laminates

A Micromechanics-Based Damage Model for the Strength Prediction of Composite Laminates

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