Details
| Original language | English |
|---|---|
| Pages (from-to) | 279-298 |
| Number of pages | 20 |
| Journal | Computer Methods in Applied Mechanics and Engineering |
| Volume | 148 |
| Issue number | 3-4 |
| Publication status | Published - 5 Sept 1997 |
| Externally published | Yes |
Abstract
A finite element formulation is derived, which accounts for materials exhibiting plastic flow after large elastic deformation. Such material behaviour can be observed, for example, in certain kinds of rubber useful in practical situations due to their high tensile strength and resistance to aging. For these materials, then, both the elastic and plastic behaviour must be described by a non-linear material model. Because of this, the return mapping algorithm used in this work requires the solution of several non-linear equations in every Gauss point, which is carried out here via Newton iteration. The fitting of the material model to experimental results demonstrates the necessity of incoporating finite elasticity into the material model in order to successfully account for the observed material behaviour. The conseqence of using an oversimplified elastic material model is demonstrated by means of examples.
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
- General Physics and Astronomy
- Computer Science(all)
- Computer Science Applications
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In: Computer Methods in Applied Mechanics and Engineering, Vol. 148, No. 3-4, 05.09.1997, p. 279-298.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A material model for rubber-like polymers exhibiting plastic deformation
T2 - Computational aspects and a comparison with experimental results
AU - Reese, S.
AU - Wriggers, P.
PY - 1997/9/5
Y1 - 1997/9/5
N2 - A finite element formulation is derived, which accounts for materials exhibiting plastic flow after large elastic deformation. Such material behaviour can be observed, for example, in certain kinds of rubber useful in practical situations due to their high tensile strength and resistance to aging. For these materials, then, both the elastic and plastic behaviour must be described by a non-linear material model. Because of this, the return mapping algorithm used in this work requires the solution of several non-linear equations in every Gauss point, which is carried out here via Newton iteration. The fitting of the material model to experimental results demonstrates the necessity of incoporating finite elasticity into the material model in order to successfully account for the observed material behaviour. The conseqence of using an oversimplified elastic material model is demonstrated by means of examples.
AB - A finite element formulation is derived, which accounts for materials exhibiting plastic flow after large elastic deformation. Such material behaviour can be observed, for example, in certain kinds of rubber useful in practical situations due to their high tensile strength and resistance to aging. For these materials, then, both the elastic and plastic behaviour must be described by a non-linear material model. Because of this, the return mapping algorithm used in this work requires the solution of several non-linear equations in every Gauss point, which is carried out here via Newton iteration. The fitting of the material model to experimental results demonstrates the necessity of incoporating finite elasticity into the material model in order to successfully account for the observed material behaviour. The conseqence of using an oversimplified elastic material model is demonstrated by means of examples.
UR - http://www.scopus.com/inward/record.url?scp=0031554834&partnerID=8YFLogxK
U2 - 10.1016/S0045-7825(97)00034-0
DO - 10.1016/S0045-7825(97)00034-0
M3 - Article
AN - SCOPUS:0031554834
VL - 148
SP - 279
EP - 298
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
SN - 0045-7825
IS - 3-4
ER -