Interfacial debonding analysis in multiple fiber reinforced composites

Ghosh, Somnath; Yu, Ling; Majumdar, Bhaskar; Kim, Ran

doi:10.1016/s0167-6636(00)00030-2

Cited by 124 publications

(71 citation statements)

References 30 publications

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“…It has been established that whilst the peak value and area of the T-S curve are vital for capturing the interface separation behavior, its precise shape is of less significance [30]. Consequently, for simplicity, the bilinear T-S law [29,31,32] shown in Fig. 2 is selected for the present study.…”

Section: Cohesive Zone Modelmentioning

confidence: 99%

Strength and interface failure mechanism of adhesive joints

Wei

2012

International Journal of Adhesion and Adhesives

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a b s t r a c tAdhesive joints have a wide range of applications in the civil engineering, automotive and aircraft industries. In the present research, we use the finite element method to systematically study the overall strength and interface failure mechanism of single lap joints, which are subjected to tensile loading, focusing on the effects of various system parameters including fracture energy of the adhesive layer, overlap length and adhesive layer thickness on the load-bearing capability of the joints. The results show that the overlap length and the adhesive fracture energy have combined influences on the load-bearing capability. On the other hand, a preliminary damage analysis of the adhesive layer is carried out, considering the situations when the loads arrive to the peak values. Furthermore, the interface behavior is investigated, including the interface stress analysis and interface slip. The rotation of the joint during loading and its influence factors are studied as well. Obtained results suggest that the interface stress distributions are related to the slip and the rotation angle.Crown

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Section: Cohesive Zone Modelmentioning

confidence: 99%

Strength and interface failure mechanism of adhesive joints

Wei

2012

International Journal of Adhesion and Adhesives

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“…In fact, the FEM discretization of a representative volume element (RVE) with many heterogeneities involves a problem with a large number of degrees of freedom (the RVE contains the heterogeneities characterizing the microstructure of the composite). Such problems have been analysed by Ghosh et al [74], who have developed a plane finite element model based on a polygonal Voronoi cell [75]. Inconveniences due to the use of random distributions of inclusions and defects can be avoided by assuming a periodic distribution of such heterogeneities.…”

Section: Fig 123 the Size Requirements Of A Representative Volumementioning

confidence: 99%

Micromechanical material models for polymer composites through advanced numerical simulation techniques

Kassem

Weichert

2009

Proc Appl Math and Mech

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“…T-S curve can be considered as a representation of the constitutive relation of the equivalent interface [9]. A bilinear assumption model [25][26][27], in which a critical energy release rate G c and a cohesive strength s u are vital to capture the interface separation behavior [9][10][11]15,28], is employed in this study. Owing to the combined loadings, a complex stress state of the joint is present with mixed-mode (Mode I and II) damage propagation, as shown in Fig.…”

Section: Czmmentioning

confidence: 99%

Numerical analysis on load-bearing capacity and damage of double scarf adhesive joints subjected to combined loadings of tension and bending

Liao

Sawa

Huang

2014

International Journal of Adhesion and Adhesives

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a b s t r a c tThe load-bearing capacity and the damage level of the double scarf joint (DSJ) under combined loadings of tension and bending were investigated numerically, which takes into account the effects of scarf angle and adhesive type. A finite element method (FEM), which includes a mixed-mode cohesive zone model (CZM) with a bilinear shape, was employed to govern the interface separation behaviors. At the point corresponding to the ultimate loading, it was observed that the interface damage level of DSJ with the ductile adhesive is higher and more uniform than that of the joint with the brittle one. More than that, the numerical results illustrated that the failure of DSJ is controlled not only by the ultimate loading, but also by the applied displacement until complete failure. Therefore, the failure energy, which is defined as the integral of the loading with respect to the displacement, was adopted to estimate the joint performance. Subsequently, the numerical results showed that the failure energy of the joint with the ductile adhesive is higher than that of the joint with the brittle one. Furthermore, all the discussed characteristic parameters of a DSJ with a given adhesive, including ultimate loading, the von-Mises equivalent stress and interface damage level corresponding to the ultimate loading, and the failure energy, were inversely proportional to the scarf angle. Finally, through comparing with the existing experimental measurements, the adoptive method was validated.

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Interfacial debonding analysis in multiple fiber reinforced composites

Cited by 124 publications

References 30 publications

Strength and interface failure mechanism of adhesive joints

Strength and interface failure mechanism of adhesive joints

Micromechanical material models for polymer composites through advanced numerical simulation techniques

Numerical analysis on load-bearing capacity and damage of double scarf adhesive joints subjected to combined loadings of tension and bending

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