Details
| Original language | English |
|---|---|
| Title of host publication | EPD Congress 2016 |
| Publisher | Springer International Publishing AG |
| Pages | 173-179 |
| Number of pages | 7 |
| ISBN (electronic) | 9783319481111 |
| ISBN (print) | 9781119225782 |
| Publication status | Published - 2016 |
Abstract
Microstructural analysis to support the development of material models provides valuable information to design complex forming operations. Damage models such as e.g. by Gurson consider spherical voids only. However, investigations of bcc steels by scanning electron microscopy reveal that voids exhibit an ellipsoidal shape with progressing deformation. The material’s weakening in the Gurson model is taken into account by the void volume fraction. Therefore, a three-dimensional characterization of the void shape offers important data for modelling. Thus, information on the anisotropy of the process of void evolution and accordingly, about the anisotropy of the deformation process is provided. Application of the information regarding the void shape anisotropy within the Gurson model is discussed.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
- Materials Science(all)
- General Materials Science
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EPD Congress 2016. Springer International Publishing AG, 2016. p. 173-179.
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Evolution of void shape anisotropy in deformed BCC steels
AU - Gerstein, Gregory
AU - Nürnberger, Florian
AU - Maier, Hans Jürgen
PY - 2016
Y1 - 2016
N2 - Microstructural analysis to support the development of material models provides valuable information to design complex forming operations. Damage models such as e.g. by Gurson consider spherical voids only. However, investigations of bcc steels by scanning electron microscopy reveal that voids exhibit an ellipsoidal shape with progressing deformation. The material’s weakening in the Gurson model is taken into account by the void volume fraction. Therefore, a three-dimensional characterization of the void shape offers important data for modelling. Thus, information on the anisotropy of the process of void evolution and accordingly, about the anisotropy of the deformation process is provided. Application of the information regarding the void shape anisotropy within the Gurson model is discussed.
AB - Microstructural analysis to support the development of material models provides valuable information to design complex forming operations. Damage models such as e.g. by Gurson consider spherical voids only. However, investigations of bcc steels by scanning electron microscopy reveal that voids exhibit an ellipsoidal shape with progressing deformation. The material’s weakening in the Gurson model is taken into account by the void volume fraction. Therefore, a three-dimensional characterization of the void shape offers important data for modelling. Thus, information on the anisotropy of the process of void evolution and accordingly, about the anisotropy of the deformation process is provided. Application of the information regarding the void shape anisotropy within the Gurson model is discussed.
UR - http://www.scopus.com/inward/record.url?scp=85030221914&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-48111-1_20
DO - 10.1007/978-3-319-48111-1_20
M3 - Contribution to book/anthology
AN - SCOPUS:85030221914
SN - 9781119225782
SP - 173
EP - 179
BT - EPD Congress 2016
PB - Springer International Publishing AG
ER -