Numerical Analysis of Reinforcement Effect of Z-Pins withSpecial-Shaped CrossSection Under Mode I Delamination

Abstract

Abstract: Numerical Analysis of Reinforcement Effect of ZPins with Abstract： A 3D finite element model was proposed to simulate a single Zpin for pullout test and for unpinned/Zpinned double cantilever beam (DCB) test. Static and sliding friction coefficients were used to simulate the debonding and pullout process of the Zpin. Connectors were used in the DCB model to simulate the bridging effect of the Zpins with the bridging curves calculated by the pullout model as input data. The bridging curves of the Z-pin with specialshaped crosssection for the pullout test and the loaddisplacement curves for the DCB test were calculated based on the proposed finite element model. The effect of the cross section perimeter of Zpin on the maximum bridging load was also discussed in detail. The simulation results were in good agreement with the experimental data.

Key words: Z-pin with special-shaped crosssection, bridging force, double cantilever beam (DCB) test, friction coefficient, connector

CLC Number:

TB 303.3

JIN Zhuyu,ZHANG Xiaojing. Numerical Analysis of Reinforcement Effect of Z-Pins withSpecial-Shaped CrossSection Under Mode I Delamination[J]. Journal of Shanghai Jiaotong University, 2016, 50(02): 169-175.

References

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