Simulation of the Mechanical Behavior of Nanodispersed Elastomer Particle-Modified Polyamide 6

Abstract:

In this work the nanodispersed elastomer copolymer particle-modified polyamide 6 (PA 6) is investigated. Micromechanical modelling is proposed to predict the mechanical behaviour of this material up to failure. A three-dimensional self-consistent embedded unit cell model is chosen which has been well applied for simulating the elastoplasticdeformation of this PA 6-composite [1,. This model will be here modified with the consideration of debonding between the elastomer particles and the PA 6-matrix. The predictions are in very good agreement with the experimental results. In terms of crash behavior, e.g. in the automotive industry the material behaviour under dynamic loading is also of particular interest. Impact strength is one of the most important parameters for describing this material behaviour. A full three-dimensional dynamic simulation of V-notched Charpy impact test is performed in ABAQUS/Explicit. The calculated impact strength coincides plausibly well with the experimental determination.

• Periodical: Advanced Materials Research (Volume 746)
• Pages: 250-255
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.746.250
• Online since: August 2013
• Authors: Jing Wiedmaier, Ulrich Weber, Siegfried Schmauder
• Keywords: Dynamic Modeling, Impact Strength, Micromechanical Modeling, Polymer Composite

References

[1] I.B. Page, Polyamides as Engineering Thermoplastic Materials, vol. 11 No. (1)RAPRA Technology Ltd., Shawbury (2000).

[2] G.H. Michler, F.J. Balta-Calleja, Mechanical Properties of Polymers based onNanostructure and Morphology, Taylor & Francis Group, (2005).

[3] S. Geier, M. Poindl, P. Eyerer, Thoughening of PA 6 by fine dispersed nanosizedPA 6-polyether block copolymer particles, in: Proceedings of the PolymerProcessing Society 26th Annual Meeting, PPS-26, July 4–8, Banff, Canada, (2010).

[4] J. Huang, U. Weber, S. Schmauder, S. Geier, Micro-mechanical modeling of Young's modulus of semi-crystalline Polyamide 6 (PA 6) and elastomer particle-modified PA 6, Comput. Mater. Sci. 50 (2011) p.1315–1319.

DOI: 10.1016/j.commatsci.2010.03.012

[5] J. Huang, S. Schmauder, U. Weber, S. Geier, Micromechanical modelling of the elastoplastic behavior of nanodispersed elastomer particle-modified PA 6, Comput. Mater. Sci. 52 (2012) p.107–111.

DOI: 10.1016/j.commatsci.2011.01.005

[6] J. Huang, U. Weber, S. Schmauder, Numerisch Modellierung von mechanischen Eigenschaften partikelgefüllter Polyamid-Composite, 23. Stuttgarter Kunststoff-Kolloquium, 06. -07. März 2013, Stuttgart, Tagungsband, Eds:.C. Boten, M. Buchmeister, IKT, IPOC, Universität Stuttgart, pp.205-208 (2013).

[7] J.G. Williams, H. Hadavinia and A.J. Kinloch, cohesive zone models in the characterization of toughness. In: 11th international conference on fracture; 20-25 Mar 2005, Torino , Italy.

[8] M. Anvari, I. Scheider, C. Thaulow, Simulation of dynamic ductile crack growth using strain rate and triaxiality dependent cohesive elements, Engineering fracture mechanics 73 (2006) pp.2210-2228.

DOI: 10.1016/j.engfracmech.2006.03.016