Prediction of Static and Dynamic Mechanical Properties of GFRTP Product through Injection Molding

Abstract:

This paper aims at evaluating the prediction accuracy of macroscopic static and dynamic mechanical properties, including damping properties, of glass fiber reinforced thermo plastics (GFRTP) obtained via computer simulations. The prediction procedure is based on the Eshelby-Mori-Tanaka approach using fiber orientation tensor. The prediction accuracy of mechanical properties depends on the fiber orientation tensor. In this paper, we compare that prediction accuracies obtained using measured fiber orientation tensor and using simulated fiber orientation tensor by resin flow analysis. Additionally, we propose a linearized damping model based on the Eshelby-Mori-Tanaka approach and modal strain energy method to predict damping property, as well as a method for evaluating the contribution of the elastic modulus in order to quantitatively comprehend the anisotropic characteristics of GFRTP.

• Periodical: Key Engineering Materials (Volume 749)
• Pages: 223-228
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.749.223
• Online since: August 2017
• Authors: Kohei Furuya*, Makoto Nikawa, Nguyen Ba Tuyen, Yuta Nakamura, Ryo Ueno, Akihiro Chiba, Kazuya Sakurai, Yuichi Matsumura
• Keywords: Damping Ratio, Eshelby-Mori-Tanaka, GFRTP, Injection Molding, Resin Flow Analysis

References

[1] F. Baba, A. Fujita, C. Gon, A. Nakai, H. Hamada, Effect of gate shape on fiber orientation and mech- anical properties of injection molded CF/LCP thin plates, SEIKEIKAKOU, 15 (2003) 698-705 (in Japanese).

DOI: 10.4325/seikeikakou.15.698

[2] Benveniste Y., A new approach to the application of Mori-Tanaka's theory in composite materials, Mechanics of materials, (1987) 147–157.

DOI: 10.1016/0167-6636(87)90005-6

[3] R. Chandra, S.P. Singh and K. Gupta, Micromechanical damping models for fiber-reinforced composites: a comparative study, Applied Science and Manufacturing, 33 (2002) 787–796.

DOI: 10.1016/s1359-835x(02)00019-2

[4] I. Doghri and L. Tinel, Micromechanical modeling and computation of elasto-plastic materials reinforced with distributed-orientation fibers, International Journal of Plasticity, 21(2005) 1919–(1940).

DOI: 10.1016/j.ijplas.2004.09.003

[5] S. G. Advani, Opportunities and challenges of multiscale modeling and simulation in polymer composite processing, Int. J. Mater. Form., 2 (2009) 39-44.

DOI: 10.1007/s12289-009-0601-y