Evaluation of Weld-induced Residual Stresses in S690 Steel

The objective of this project is to analyse welding processes in high strength low-carbon steel grade S690 in numerical simulation with MORFEO codes and in experiments with a Gleeble® thermo-mechanical simulator instrument. The influence of phase transformation on residual stresses is investigated with simulations on plate to plate and on tube to plate connections. Furthermore, this study investigates the effects of element activation on numerical results and the possibilities to simplify multi-pass welding by lumped models. In addition to literature based descriptions of temperature depending steel properties, experimental tests are conducted to survey the behavior of steel grad S690 at elevated temperatures.


Advisor(s):
Ummenhofer, Thomas
Nussbaumer, Alain
Year:
2013
Keywords:
Laboratories:


Note: The status of this file is: EPFL only
The status of this file is: Involved Laboratories Only


 Record created 2013-04-11, last modified 2018-03-17

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