Details
| Original language | English |
|---|---|
| Pages (from-to) | 110-121 |
| Number of pages | 12 |
| Journal | European journal of mechanics |
| Volume | 55 |
| Publication status | Published - 1 Jan 2016 |
| Externally published | Yes |
Abstract
The pseudoelastic material behavior is one outstanding feature of shape memory alloys. This effect comes along with the forming of two plateaus in the stress/strain diagram of a tension test. Cyclic loading leads to a decrease particularly of the upper stress-plateau due to the evolution of plastic deformations which also implies fatigue of the material. In this work, we develop a variational material model which is able to predict the effect of fatigue using a novel approach for the dissipation potential that couples the evolutions of phase transformations and plastic strains.
Keywords
- Combined Voigt/Reuß energy bound, Functional fatigue, Polycrystalline shape memory alloys
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Physics and Astronomy(all)
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In: European journal of mechanics, Vol. 55, 01.01.2016, p. 110-121.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A coupled dissipation functional for modeling the functional fatigue in polycrystalline shape memory alloys
AU - Waimann, Johanna
AU - Junker, Philipp
AU - Hackl, Klaus
N1 - Publisher Copyright: © 2015 Published by Elsevier Masson SAS.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The pseudoelastic material behavior is one outstanding feature of shape memory alloys. This effect comes along with the forming of two plateaus in the stress/strain diagram of a tension test. Cyclic loading leads to a decrease particularly of the upper stress-plateau due to the evolution of plastic deformations which also implies fatigue of the material. In this work, we develop a variational material model which is able to predict the effect of fatigue using a novel approach for the dissipation potential that couples the evolutions of phase transformations and plastic strains.
AB - The pseudoelastic material behavior is one outstanding feature of shape memory alloys. This effect comes along with the forming of two plateaus in the stress/strain diagram of a tension test. Cyclic loading leads to a decrease particularly of the upper stress-plateau due to the evolution of plastic deformations which also implies fatigue of the material. In this work, we develop a variational material model which is able to predict the effect of fatigue using a novel approach for the dissipation potential that couples the evolutions of phase transformations and plastic strains.
KW - Combined Voigt/Reuß energy bound
KW - Functional fatigue
KW - Polycrystalline shape memory alloys
UR - http://www.scopus.com/inward/record.url?scp=84942156418&partnerID=8YFLogxK
U2 - 10.1016/j.euromechsol.2015.08.001
DO - 10.1016/j.euromechsol.2015.08.001
M3 - Article
VL - 55
SP - 110
EP - 121
JO - European journal of mechanics
JF - European journal of mechanics
ER -