Design of Discontinuous Fiber Reinforced Injection Molded Polymer Matrix Composite Parts

Abstract:

Injection molded discontinuous fiber reinforced components are widely used in many demanding engineering applications and are exposed to a complex combination of thermo-mechanical loads. Mean field homogenization approach was successfully applied for predicting the global stiffness behavior over wide part geometry complexity, fiber orientation distribution (FOD) and loading situations including loading rate and temperature dependence. The prediction of the component strength, however, is significantly more complicated and requires additional and theoretical considerations as well as the application of various numerical tools and sophisticated experiments. To overcome above difficulties the MFH technique was extended with the first pseudo grain failure or damage (FPGF or FPGD) approach proposed by the research group of Doghri [1] elaborated in detail using short glass fiber reinforced PP-GF in the PhD Thesis of Reiter [2] and shortly described in this study.

• Periodical: Applied Mechanics and Materials (Volumes 633-634)
• Pages: 266-269
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.633-634.266
• Online since: September 2014
• Authors: Zoltan Major*, Martin Reiter
• Keywords: Components Exposed to Complex Service Loads, Discontinuous Fiber Reinforced Injection Molded Polymers, Integrated Simulation Approach for Strength Prediction

References

[1] I. Doghri et al. Mean-field based on a general incrementally affine linearization method,. International Journal of Plasticity, Vol. 26, pp.219-238, (2010).

DOI: 10.1016/j.ijplas.2009.06.003

[2] M. Reiter, PhD Thesis, in preparation, JKU Linz, (2014).