Micromechanics-based elastic-damage analysis of laminated composite structures

Pyo, Sukhoon; Lee, Haeng‐Ki

doi:10.1016/j.ijsolstr.2009.04.004

Cited by 12 publications

(6 citation statements)

References 40 publications

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“…For the current study under investigation, previous work done by Liang et al. 4 and Pyo and Lee 5 is taken into account and Eshelby’s tensor is engaged under investigation. Stiffness transformation of composites is also summarized.…”

Section: Experimental Methodologymentioning

confidence: 99%

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A multi-level damage and creep behaviour of material subjected to high pressure: metal versus composite – A micromechanics approach

Kathavate¹,

Pawar²,

Adkine³

2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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This current study reports on multi-level damage and creep behaviour of metal and composite material under external high pressure using finite element concept. A fatigue damage model with microcracks with improper interface has been portrayed in the present investigation. In addition, the overall elastic properties and damage evaluation are also studied and comparative study of mechanical properties has been outlined. Further thermo-elastic creep response of materials based on Norton’s law is also presented. The results showed that the proposed nonlinear constitutive model and overall elastic damage behaviour of composite material are in agreement. Implemented nonlinear constitutive model is secured by comparing predicted stress–strain curves with experimental data available in the past literature under uniaxial tension. The time-dependent behaviour creep stresses and displacements are studied and plotted. The analysis provides significant new insights of micromechanical damage, creep and collapse behaviour of composite material. For the structural composites, some notable techniques have been developed over the past three decades; review of these techniques is also outlined here in this paper and state of art is established together with insights for upcoming development.

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Section: Experimental Methodologymentioning

confidence: 99%

“…4 But regardless of these engineering characteristics, laminated composites are more fragile and susceptible to damage. 5 Cylindrical shells have been a subject of frequent studies in aerospace, marine and energy structure applications. They have propensity to withstand huge axial compressive loads.…”

Section: Introductionmentioning

confidence: 99%

A multi-level damage and creep behaviour of material subjected to high pressure: metal versus composite – A micromechanics approach

Kathavate¹,

Pawar²,

Adkine³

2017

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…As a result, these models enable the mechanisms of fracture of structurally heterogeneous materials under plastic deformation to be studied and described in detail and their ultimate potentialities under one or another kind of loading to be predicted at the stage of design. Similar studies are made in the mechanics of composite materials (Bednarcyk and Arnold, 2001;Kontou, 2007;Kwon and Liu, 1997;Paul, 2012;Pavan et al, 2009;Prahl et al, 2007;Pyo and Lee, 2009;Segurado and LLorca, 2005;Xia et al, 2001). All those studies when specifying the mechanical properties of the constituents, used data obtained from standard testing of a material close to a constituent of a composite or a metal alloy in the chemical composition.…”

Section: Introductionmentioning

confidence: 97%

Hierarchical simulation of plastic deformation and fracture of complexly alloyed brass

Смирнов

Myasnikova

Пугачева

2015

International Journal of Damage Mechanics

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The paper deals with simulating plastic deformation and fracture of the constituents of complexly alloyed brass in upsetting under the plane strain state in view of their geometry, mechanical properties and the stress state during deformation. The peculiarities of the formation of a net of localised strain bands are discussed. It is demonstrated that brass deformation is mainly due to the malleable matrix and that it is brittle silicide particles that fail. Stress non-uniformity in silicides has been detected with the presence of both tensile and compressive normal stress areas in them. Stress stiffness coefficient distribution functions have been constructed, and a relationship between the ultimate strains of brittle silicide particles in the soft phase and the stress stiffness coefficient has been defined. The dependence has been used to simulate damage accumulation in the silicides before fracture during upsetting under plane strain. The probability of silicide fracture under deformation is shown to be reducible due to the use of stress states offering a high level of macroscopic compressive stresses -high enough to minimise zones with prevailing tensile stresses in the silicides.

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“…Due to a hierarchical composite structure, these studies need to cover multiple scale levels. The established modern paradigm for such studies is the multilevel approach for describing structurally inhomogeneous materials [1][2][3][4]. Multilevel models of plastic deformation and damage are advantageous over the classical approach adopted in mechanics in a way that they allow one to observe stress concentration phenomenon leading to microcrack emergence at early deformation stages.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical modeling of deformation and damage of metal matrix composite under uniaxial loading conditions

Смирнов

Konovalov

Myasnikova

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. A three-dimensional model for deformation of metal matrix composite with aluminum matrix and silicon carbide reinforcement particles is developed. The model accounts for an internal structure of the composite, as well as rheology of its constituents. The model is further used in numerical simulations in order to study the evolution of stress-strain state parameters in a randomly-chosen composite microstructure fragment under uniaxial tension and compression loading on micro-and macroscale. The parameters include the stress stiffness coefficient, the Lode-Nadai coefficient and equivalent (von Mises) strain. It is found that local deformation regions and internal tensile stress concentration regions appear in the material of composite matrix. Adhering to a phenomenological damage theory, a damage development is computed in the matrix metal. We present damage fields and damage distributions for uniaxial tension and compression.

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Micromechanics-based elastic-damage analysis of laminated composite structures

Cited by 12 publications

References 40 publications

A multi-level damage and creep behaviour of material subjected to high pressure: metal versus composite – A micromechanics approach

A multi-level damage and creep behaviour of material subjected to high pressure: metal versus composite – A micromechanics approach

Hierarchical simulation of plastic deformation and fracture of complexly alloyed brass

Hierarchical modeling of deformation and damage of metal matrix composite under uniaxial loading conditions

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