This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Accurate Simulation for Multi-Phase Materials in the Small Engine Industry
Technical Paper
2014-32-0042
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Composite materials can bring significant weight saving in the design of a new component. These materials are one of the solutions offered to designers to achieve new fuel efficiency regulation. New challenge arises in term of design optimization and manufacturing. Shifting from a metal to composite paradigm requires a dedicated tool for composite design in order to take into account the specific composite behavior. Material performance varies widely over the entire part mainly due to the manufacturing process and the corresponding microstructure. Classical design tools are not able to describe accurately the local composite material behavior, leading to the introduction of safety factors and lack of confidence in the design.
Accurate modelling of composites require the use of a multi-scale approach. The composite is not seen as a homogeneous material anymore but as a heterogeneous material made of several constituents. The mechanical performance of this composite depends on the performance of each constituent and on its microstructure. Fiber can be chopped or continuous and their orientations are controlled by the manufacturing process: injection, compression, drappage, etc. A bridge between the manufacturing process and the prediction of the structural performance of the component is therefore necessary.
This paper presents the benefits of a nonlinear multi-scale approach applied to composite material in the Finite Element prediction of the performance of an engine cover.
Recommended Content
Authors
Topic
Citation
Alsteens, B., "Accurate Simulation for Multi-Phase Materials in the Small Engine Industry," SAE Technical Paper 2014-32-0042, 2014, https://doi.org/10.4271/2014-32-0042.Also In
References
- Seyfarth , J. Failure Modeling of Short Fiber Reinforced Plastics: MMI Confident Design™ - Digimat Advanced Solutions Webinar 2013
- Lang , R.W. , Manson , J.A. , Hertzberg , R. W. Mechanisms of fatigue fracture in short glass fibre-reinforced polymers Journal of Materials Science 22 11 4015 4030 1987
- Bernasconi , A. , Davoli , P. , Basile , A. , Filippi , A. Effect of fiber orientation on the fatigue behavior of a short glass fiber reinforced polyamide-6 International Journal of Fatigue 29 199 208 2007
- Seyfarth , J. The Design of Injection Molded Plastic Parts in Industrial Environments Virtual Class Autodesk University 2012
- Selmi , A. , Doghri , I. , Adam , L. Micromechanical simulations of biaxial yield, hardening and plastic flow in short glass fiber reinforced polyamide International Journal of Mechanical Sciences 53 696 706 2011
- Mori , T. , Tanaka , K. Average stress in the matrix and average elastic energy of materials with misfitting inclusions Acta Metall. Mater. 21 571 574 1973
- Eshelby , J. The determination of the elastic field of an ellipsoidal inclusion and related problems Proceedings of the Royal Society of London 376 396 1957
- Lielens. G. Micro-macro Modeling of Structured Materials PhD thesis Université catholique de Louvain 1999
- Doghri , I. , Ouaar , A. Homogenization of two-phase elasto-plastic composite material and structure. Study of tangent operators, cyclic plasticity and numerical algorithm International Journal of Solids and Structures 40 1681 1712 2003
- e-Xstream engineering 2013, Digimat - Nonlinear Multiscale Modeling Platform Software Manual, Version 5.0.1
- Autodesk, Moldflow - Simulation tools for plastic injection molding Software Manual, Version 2013