Delaminations in composite plates under transverse static or impact loads — A model

Finn, S. R.; Springer, George Ś.

doi:10.1016/0263-8223(93)90221-b

Cited by 68 publications

(24 citation statements)

References 22 publications

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“…Therefore, to characterize the interfacial delamination behaviour in FRP composite joints, three-dimensional finite element analyses are required to be conducted [29] to evaluate the SERRs along the delamination fronts. Calculations of energy release rate components are based on Irwin's theory of crack closure technique [30].…”

Section: Finite Element Analyses Of Slj Embedded With Through-thewidtmentioning

confidence: 99%

Through-the-width delamination damage propagation characteristics in single-lap laminated FRP composite joints

Panigrahi

Pradhan

2009

International Journal of Adhesion and Adhesives

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Section: Finite Element Analyses Of Slj Embedded With Through-thewidtmentioning

confidence: 99%

Through-the-width delamination damage propagation characteristics in single-lap laminated FRP composite joints

Panigrahi

Pradhan

2009

International Journal of Adhesion and Adhesives

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“…In the model spring constant has a quarter value of the linearized contact coefficient, k l as in Eq. (10). The mass of impactor is lumped at one end of the spring element, and the other end of the spring element is attached to laminate at impacted location.…”

Section: Impact Response Analysis Using General-purpose Fem Softwarementioning

confidence: 99%

“…Sun and his pupils, many researchers have studied the low-velocity impact problem on composite laminates following his approach [9][10][11]. In order to follow his approach, each researcher needed to develop each one's own finite element method program.…”

Section: Introductionmentioning

confidence: 99%

Low-velocity impact analysis of composite laminates using linearized contact law

Choi

Lim

2004

Composite Structures

105

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“…The three components of energy release rate are used to characterize the interlaminar fracture behaviour for delamination and debonding analyses of FRP composite structural members (Dattaguru et al 1994;Wang and Raju 1996;Pradhan and Panda 2006). Therefore, to characterize the interfacial delamination behaviour in FRP composite joints, three-dimensional finite element analyses are required to be conducted (Finn and Springer 1993) to evaluate the ERRs along the delamination fronts. Calculations of energy release rate components are based on Irwin's theory of Crack Closure Technique (Irwin 1957).…”

Section: Fea Of Delamination Damage In Frp Composite Lsjsmentioning

confidence: 99%

Delamination damage analyses of adhesively bonded lap shear joints in laminated FRP composites

Panigrahi

Pradhan

2007

Int J Fract

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Three-dimensional non-linear finite element analyses have been carried out to evaluate the outof-plane stresses in the adhesive layer existing between the lap and the strap adherends of the Lap Shear Joint (LSJ) in laminated FRP composites for varied delamination lengths. The delaminations are presumed to be pre-embedded in the thin resin rich layer existing between the first and second plies of the strap adherend. Sublaminate technique has been used to model the LSJ with the delamination. Contact finite element analyses have been performed in order to avoid interpenetration of delaminated surfaces. The effects of varied delamination lengths on the peel and interlaminar shear stresses and the individual modes of Energy Release Rate (ERR) in the delamination zones are highlighted in this paper. It is seen that three-dimensional effects exist near the free edges of the overlap end of the joint. The delamination propagation significantly affects the stress distributions in the adhesive layer existing between the lap and the strap adherends of the LSJ. The variations of interlaminar stresses and ERRs on both the delamination fronts are found to be significantly different and thus, indicate that the propagation of delamination does not occur at same rate at the two delamination fronts. This may throw some light to the evaluation of structural integrity of the LSJ in the presence of pre-embedded delaminations.

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Delaminations in composite plates under transverse static or impact loads — A model

Cited by 68 publications

References 22 publications

Through-the-width delamination damage propagation characteristics in single-lap laminated FRP composite joints

Through-the-width delamination damage propagation characteristics in single-lap laminated FRP composite joints

Low-velocity impact analysis of composite laminates using linearized contact law

Delamination damage analyses of adhesively bonded lap shear joints in laminated FRP composites

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