PSI - Issue 35

E.A. Dizman et al. / Procedia Structural Integrity 35 (2022) 91–97 Author name / Structural Integrity Procedia 00 (2021) 000–000

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The combined loading yields a higher reaction force which implies that the hardening mechanism is more e ff ective in this case. In fact the confining pressure ( p in equation (5)) distributions for these two loading scenarios are shown in Figure 8.

Fig. 8: Left: Pressure ( p ) distribution for shear loading and Right: Pressure ( p ) distribution for combined (shear and tension) loading

The higher pressure values spread over a larger domain of the sample confirms that friction induced hardening is more pronounced in case of combined loading which in turn results in higher reaction force.

5. Conclusion and Outlook

This paper has focused on crystal plasticity inspired modelling of inelastic response of CFRP’s. An implicit im plementation of the model has been realized in Abaqus through user element subroutine. Preliminary analysis results are quite promising and the capabilities of the model need to be assessed further. To this end, the model is going to be extended so that analysis of multi-ply composites with arbitrary orientations will be possible and the predictions will be compared with experimental results.

References

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