Maio 2014 vol. 1 num. 1 - 10th World Congress on Computational Mechanics

Full Article - Open Access.

Idioma principal

CONCURRENT MULTI-SCALE MODELING OF COMPOSITES UNDER HIGH RATES OF LOADING

May, Michael ; Hiermaier, Stefan ;

Full Article:

A computationally efficient concurrent multi-scale methodology for modeling com-posites under high rates of loading is proposed. The physically based model relies on micro-mechanical properties of the constituents only. Initially, the material response is calculated based on homogenized linear-elastic, orthotropic material properties at the laminate scale which are calculated using the rule of mixtures. A modified Hashin-Rotem criterion is then used to identify the switch to a more accurate micromechanical analysis based on the gener-alized method of cells (GMC). The methodology is verified using one-element tests on UD-composites and validated against high-velocity impact experiments. Both, the correlation with the experiments and the computational efficiency are good.

Full Article:

Download (PDF)

Palavras-chave: Composites, Multi-scale modeling, Impact,

Palavras-chave:

DOI: 10.5151/meceng-wccm2012-18316

Referências bibliográficas
  • [1] Aboudi J., “Mechanics of Composite Materials - A Unified Micromechanical Approach”, Elsevier, 199
  • [2] Aboudi J., “Micromechanical Analysis of Composites by the Method of Cells - Update”, Appl. Mech. Rev. 49, 83-91, 1996.
  • [3] Daniel I. M., Ishai O., “Engineering Mechanics of Composite Materials – second edition”, Oxford University Press, 2006.
  • [4] Hashin Z., Rotem A., “A fatigue Failure Criterion for Fiber Reinforced Materials”, J. Compos. Materials 7, 448-464, 1973.
  • [5] Hashin Z., “Analysis of Composite Materials – A Survey”, J. Appl. Mech. 50, 481-505, 1983.
  • [6] Lambert J. P., Jonas, G.H., “Towards Standardization of Terminal Ballistic Testing: Ve-locity Representation”, Report BRL-R-1852, Ballistic Res. Lab, Aberdeen, MD, 197
  • [7] Lambert J. P., “A Residual Velocity Predictive Model for Long Rod Penetrators”, Report ARBRL-MR-02828, Ballistic Res. Lab, Aberdeen, MD, 1978.
  • [8] Nossek M., “Multiskalenmodllierung von Impaktbelastungen auf Faserverbundlaminate: Methodenentwicklung, Parameteridentifikation und Anwendung”. ? - Forschungsergeb-nisse aus der Kurzzeitdynamik 18, Thoma K., Hiermaier S. (Eds.), ISBN 978-3-8396-0226-3, 2011.
  • [9] Paley M., Aboudi J., “Micromechanical Analysis of Composites by the Generalized Method of Cells Model”, Mechanics of Materials 14, 127-139, 1992.
  • [10] Knops M., “Analysis of Failure in Fiber Polymer Laminates – The Theory of Alfred Puck”, Springer, 2008.
  • [11] Pindera M.J., Bednarcyk, B.A., “An Efficient implementation of the Generalized Method of Cells for Unidirectional, Multi-Phased Composites with Complex Microstruc-tures”, Composites: Part B. 30, 87-105, 1999.
Como citar:

May, Michael; Hiermaier, Stefan; "CONCURRENT MULTI-SCALE MODELING OF COMPOSITES UNDER HIGH RATES OF LOADING", p. 1245-1257 . In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 2358-0828, DOI 10.5151/meceng-wccm2012-18316

últimos 30 dias | último ano | desde a publicação


downloads


visualizações


indexações