Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 9-18 |
| Number of pages | 10 |
| Journal | Computer methods in materials science |
| Volume | 15 |
| Issue number | 1 |
| Publication status | Published - 2015 |
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Keywords
- METIS-309144
- IR-94154
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Cyclic shear behavior of austenitic stainless steel sheet. / Geijselaers, Hubertus J.M.; Bor, Teunis Cornelis; Hilkhuijsen, P.; van den Boogaard, Antonius H.
In: Computer methods in materials science, Vol. 15, No. 1, 2015, p. 9-18.Research output: Contribution to journal › Article › Academic
TY - JOUR
T1 - Cyclic shear behavior of austenitic stainless steel sheet
AU - Geijselaers, Hubertus J.M.
AU - Bor, Teunis Cornelis
AU - Hilkhuijsen, P.
AU - van den Boogaard, Antonius H.
PY - 2015
Y1 - 2015
N2 - An austenitic stainless steel has been subjected to large amplitude strain paths containing a strain reversal. During the tests, apart from the stress and the strain also magnetic induction was measured to monitor the transformation of austenite to martensite. From the in-situ magnetic induction measurements an estimate of the stress partitioning among the phases is determined. When the strain path reversal is applied at low strains, a classical Bauschinger effect is observed. When the strain reversal is applied at higher strains, a higher flow stress is measured after the reversal compared to the flow stress before reversal. Also a stagnation of the transformation is observed, meaning that a higher strain as well as a higher stress than before the strain path change is required to restart the transformation after reversal. The observed behavior can be explained by a model in which for the martensitic transformation a stress induced transformation model is used. The constitutive behavior of both the austenite phase and the martensite is described by a Chaboche model to account for the Bauschinger effect. In the model mean-field homogenization of the material behavior of the individual phases is employed to obtain a constitutive behavior of the two-phase composite. The overall applied stress, the stress in the martensite phase and the observed transformation behavior during cyclic shear are very well reproduced by the model simulations.
AB - An austenitic stainless steel has been subjected to large amplitude strain paths containing a strain reversal. During the tests, apart from the stress and the strain also magnetic induction was measured to monitor the transformation of austenite to martensite. From the in-situ magnetic induction measurements an estimate of the stress partitioning among the phases is determined. When the strain path reversal is applied at low strains, a classical Bauschinger effect is observed. When the strain reversal is applied at higher strains, a higher flow stress is measured after the reversal compared to the flow stress before reversal. Also a stagnation of the transformation is observed, meaning that a higher strain as well as a higher stress than before the strain path change is required to restart the transformation after reversal. The observed behavior can be explained by a model in which for the martensitic transformation a stress induced transformation model is used. The constitutive behavior of both the austenite phase and the martensite is described by a Chaboche model to account for the Bauschinger effect. In the model mean-field homogenization of the material behavior of the individual phases is employed to obtain a constitutive behavior of the two-phase composite. The overall applied stress, the stress in the martensite phase and the observed transformation behavior during cyclic shear are very well reproduced by the model simulations.
KW - METIS-309144
KW - IR-94154
M3 - Article
VL - 15
SP - 9
EP - 18
JO - Computer methods in materials science
JF - Computer methods in materials science
SN - 1641-8581
IS - 1
ER -