This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Extension of Material Models and Finite Element Techniques to Improve the Simulation of High Speed Impact of Thermoplastic Materials
Technical Paper
1999-01-0300
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper outlines an approach to model some of the effects of strain-rate in the simulation of thermoplastics in high speed crash simulations. The effect of strain-rate on the material properties can be significant for thermoplastic materials. The models currently available in simulation software were designed to fit more traditional materials, with a limited sensitivity to strain-rate. In order to more accurately simulate these effects, routines are being developed to extend the material models to more accurately account for material properties such as modulus, yield and failure strain variations with strain-rate.
These improvements in simulation capabilities lead to more accurate predictions of mechanical behaviour of thermoplastic materials in crash situations. Such improvements enable more optimisation of system designs leading to weight reductions, shorter development times and hence lower costs.
Recommended Content
| Technical Paper | Evolution of Instrument Panels Made of Polypropylene |
| Technical Paper | Modeling of Strain Rate Effects in Automotive Impact |
| Journal Article | Modeling and Characterization of a Novel Porous Metallic Foam Inside Ducts |
Authors
Citation
Naughton, P., "Extension of Material Models and Finite Element Techniques to Improve the Simulation of High Speed Impact of Thermoplastic Materials," SAE Technical Paper 1999-01-0300, 1999, https://doi.org/10.4271/1999-01-0300.Also In
Polymer Composites and Polymeric Materials for Energy Management and Occupant Safety
Number: SP-1448; Published: 1999-03-01
Number: SP-1448; Published: 1999-03-01
References
- LS-Dyna User’s manual Livermore Software Technology Corporation Feb 21 1997
- Sundararajan S. Aekbote C. Chou C. Lim G.G. Chikola J. Walker L.A. High-strain-rate tensile testing of door trim materials Automotive Engineering 1997
- Gandhe G.V. Lorenzo, L Design Development of Energy Absorbing Ribs for Meeting FMVSS 201 Extended Head Impact SAE Int. Congress & Exp., Detroit Feb. 24-27, 1997 SAE paper number 970161
- Gandhe G.V. Hertema D. Rey T. A Statistical Approach to Design Trim Pillars for FMVSS Extended Head Impact SAE Int. Congress & Exp. Detroit Feb. 24-27, 1997 SAE paper number 970162
- Naughton P. McCallum J. Van Dale R. Hertema D. Characterization of Talc Filled PP for use in Engineering Analyses SAE Int. Congress & Exp. Detroit Feb. 23-26, 1998