| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2020)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2020)
|
| Presentation Title |
A Micro-macro Approach to Model the Residual Stresses in Metastable Austenitic Stainless Steel (MASS) Disc Springs Manufactured by Incremental Sheet Forming (ISF) |
| Author(s) |
Fawad Maqbool, Johannes Buhl, Ramin Hajavifard, Frank Walther, Markus Bambach |
| On-Site Speaker (Planned) |
Fawad Maqbool |
| Abstract Scope |
A micro-macro numerical strategy for modeling the beneficial residual stresses induced in metastable austenitic stainless steel (MASS) disc springs through incremental sheet forming (ISF) is presented. In the developed strategy, a CP-FEM framework at micro-level calculates and inputs the phase-specific flow curves of MASS constituents, i.e., austenite γ and martensite α’ phase, to macro-model. The macro-model is calibrated through Feritscope measurements and tension-compression tests and contains implemented a mixture rule, a kinetic model of strain-induced martensite transformation and an isotropic/kinematic hardening rule. Afterward, the incremental forming simulation of disc spring manufacturing is performed and the numerically determined residual stress values are compared to the experimental values. The comparison indicates a quantitative match. Hence, the developed micro-macro strategy provides accurate residual stresses prediction and can be utilized to design the disc spring properties through adjusting residual stresses, which is possible by varying process parameters of the ISF process. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |