Experimental Investigation and Numerical Modelling of the Bonding Strength of Full-
Thermoplastic Hybrid Composites
R. Giusti, G. Lucchetta
University of Padua, Padua, Italy.
New design approaches and new technologies are focused on production of hybrid parts in order to lighten them and increase their proprieties by integrating different materials. The In Mold Forming technology was recently proposed for manufacturing of full thermoplastic hybrid composites by coupling thermoforming and injection overmolding process. Knowing the part performances is crucial to justify the initial investment of the production system. The ability to define the boundary conditions that take into account this phenomenon is extremely important in order to develop accurate numerical models. In this work a Cohesive Zone Modelling approach was proposed to describe the damage phenomena at the crack tip by means of a stress-opening relationship, which is the principle of the cohesive phenomena. A hybrid T-joint specimen, in full thermoplastic composite, was manufacture and tested. Experiments were scheduled in accordance to a DOE approach by varying the process parameters and tensile test of the samples were performed. CZM models was calibrated on experimental data.
ITHEC 2016 Manuscript P21
Publication date: 01/10/2016
Manuscript P21 published in Conference Proceedings ITHEC 2016
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