Strain Rate Dependency of Simulated Welding Residual Stresses |
| |
Authors: | Stefanos Gkatzogiannis Peter Knoedel Thomas Ummenhofer |
| |
Affiliation: | 1.KIT Steel & Lightweight Structures,Research Center for Steel, Timber & Masonry,Karlsruhe,Germany |
| |
Abstract: | In the present work, the influence of taking into consideration the strain rate-dependent nature of steel S355 during a calculation of the welding residual stresses through a finite element simulation is investigated. The Perzyna material model is calibrated using experimental values found in the literature and is introduced to a validated weld simulation model, where the strain rate dependency had not been taken into consideration before this study. The calculated profiles of the welding residual stresses, for strain rate-dependent and independent behavior, are then compared with experimentally measured profiles. The results of this first-step analysis show that taking into consideration strain rate dependency during a welding simulation of the investigated S355 has non-negligible influence on the calculated welding residual stresses. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|