A coupled dissipation functional for modeling the functional fatigue in polycrystalline shape memory alloys
- verfasst von
- Johanna Waimann, Philipp Junker, Klaus Hackl
- 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.
- Externe Organisation(en)
-
Ruhr-Universität Bochum
- Typ
- Artikel
- Journal
- European journal of mechanics
- Band
- 55
- Seiten
- 110-121
- Anzahl der Seiten
- 12
- Publikationsdatum
- 01.01.2016
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.), Werkstoffmechanik, Maschinenbau, Physik und Astronomie (insg.)
- Elektronische Version(en)
-
https://doi.org/10.1016/j.euromechsol.2015.08.001 (Zugang:
Geschlossen)
