Details
| Original language | English |
|---|---|
| Pages (from-to) | 4536-4557 |
| Number of pages | 22 |
| Journal | Journal of Mechanical Engineering and Sciences |
| Volume | 13 |
| Issue number | 1 |
| Publication status | Published - Mar 2019 |
| Externally published | Yes |
Abstract
Tensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures. The low transformation-temperature (LTT) fillers, due to introducing compressive residual stresses caused by prior martensitic transformation, can reduce tensile residual stresses in the weld zone. The effects of using LTT fillers on welding residual stresses of high strength steel sheets are studied and compared with conventional fillers. 3D finite element simulations including coupled thermal-metallurgical-mechanical analyses are developed using SYSWELD software to predict the welding residual stresses. For validation of the finite element model, the residual stresses are measured through hole drilling strain gage method. The results indicate that using the LTT fillers cause a decrease of the longitudinal tensile residual stresses of the weld metal from 554 MPa to 216 MPa in comparison with conventional fillers. The transverse residual stresses of the weld line are changed from tensile 156 MPa to compressive 289 MPa with using LTT fillers instead of conventional fillers.
Keywords
- Coupled thermal-metallurgical-mechanical analyses, Finite element simulation, Low transformation-temperature filler, Phase transformation, Welding residual stress
ASJC Scopus subject areas
- Engineering(all)
- Computational Mechanics
- Energy(all)
- Fuel Technology
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Journal of Mechanical Engineering and Sciences, Vol. 13, No. 1, 03.2019, p. 4536-4557.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Application of low transformation-temperature filler to reduce the residual stresses in welded component
AU - Azizpour, K.
AU - Moshayedi, H.
AU - Sattari-Far, I.
N1 - Publisher Copyright: © 2019 Universiti Malaysia Pahang. All rights reserved.
PY - 2019/3
Y1 - 2019/3
N2 - Tensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures. The low transformation-temperature (LTT) fillers, due to introducing compressive residual stresses caused by prior martensitic transformation, can reduce tensile residual stresses in the weld zone. The effects of using LTT fillers on welding residual stresses of high strength steel sheets are studied and compared with conventional fillers. 3D finite element simulations including coupled thermal-metallurgical-mechanical analyses are developed using SYSWELD software to predict the welding residual stresses. For validation of the finite element model, the residual stresses are measured through hole drilling strain gage method. The results indicate that using the LTT fillers cause a decrease of the longitudinal tensile residual stresses of the weld metal from 554 MPa to 216 MPa in comparison with conventional fillers. The transverse residual stresses of the weld line are changed from tensile 156 MPa to compressive 289 MPa with using LTT fillers instead of conventional fillers.
AB - Tensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures. The low transformation-temperature (LTT) fillers, due to introducing compressive residual stresses caused by prior martensitic transformation, can reduce tensile residual stresses in the weld zone. The effects of using LTT fillers on welding residual stresses of high strength steel sheets are studied and compared with conventional fillers. 3D finite element simulations including coupled thermal-metallurgical-mechanical analyses are developed using SYSWELD software to predict the welding residual stresses. For validation of the finite element model, the residual stresses are measured through hole drilling strain gage method. The results indicate that using the LTT fillers cause a decrease of the longitudinal tensile residual stresses of the weld metal from 554 MPa to 216 MPa in comparison with conventional fillers. The transverse residual stresses of the weld line are changed from tensile 156 MPa to compressive 289 MPa with using LTT fillers instead of conventional fillers.
KW - Coupled thermal-metallurgical-mechanical analyses
KW - Finite element simulation
KW - Low transformation-temperature filler
KW - Phase transformation
KW - Welding residual stress
UR - http://www.scopus.com/inward/record.url?scp=85065484391&partnerID=8YFLogxK
U2 - 10.15282/jmes.13.1.2019.14.0384
DO - 10.15282/jmes.13.1.2019.14.0384
M3 - Article
VL - 13
SP - 4536
EP - 4557
JO - Journal of Mechanical Engineering and Sciences
JF - Journal of Mechanical Engineering and Sciences
IS - 1
ER -