Modeling Interlaminar Shear Crack-Jump Phenomenon in Fiber-Reinforced Polymer Composites

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This paper discusses the simulation technique for the development of a validated finite element model to capture the stable shear crack-jump phenomenon in carbon fiber-reinforced polymer composite laminates. The interlaminar cracking process is characterized using a 16-ply unidirectional ([0]16) end-notch flexure (ENF) specimens. Complementary FE models of the test setup are developed to capture the mechanics of the observed interlaminar crack-jump phenomenon. The cohesive interface response is represented by a damage model with bilinear traction-displacement softening law. Close comparison of measured and FE-predicted load-central deflection response of the beam specimen serves to validate the FE model for the stable shear crack-jump. FE simulation predicts an early onset of damage at the interlaminar crack front corresponding to 13.4 pct. of the maximum deflection at fracture. The mechanism of stable crack-jump is described by the characteristic evolution of the interface damage parameter, and quantified by the damage dissipation energy.

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Periodical:

Edited by:

Denni Kurniawan and Fethma M. Nor

Pages:

74-78

DOI:

10.4028/www.scientific.net/AMR.1125.74

Citation:

S.S.R. Koloor et al., "Modeling Interlaminar Shear Crack-Jump Phenomenon in Fiber-Reinforced Polymer Composites", Advanced Materials Research, Vol. 1125, pp. 74-78, 2015

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October 2015

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$35.00

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