Evaluation of laminated composites strength with different fibers direction subjected to impact load from the implicit and explicit dynamic analysis

Resumo

The composite materials are widely used in mechanical engineering applications. Understand their
behavior and how will load influence on structural elements is extremely important for technological evolution
and innovation. The complexity to evaluate elements of composite materials makes the subject a fertile field for
learning and new proposals. Thus, it is proposed to investigate the performance of implicit and explicit dynamic
methods in the impact analysis of some composite plates. The modelling of problem consists of applying an impact
load in center of the plates, which are represented by bidimensional and linear finite elements with 6 degrees of
freedom per node. The influence of fiber orientation and the number of plies of the plates on their ability to resist
stresses is verified. The results showed good agreement with literature and some behaviors were highlighted.