Tensile testing for weld deformation properties in similar gage tailor welded blanks using the rule of mixtures

Kadri, Abdullah; Wild, Peter; Jeswiet, J.; Ghasempoor, Ahmad

doi:10.1016/s0924-0136(01)00555-6

Cited by 111 publications

(47 citation statements)

References 3 publications

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“…Numerical methods are considered to be the most effective for understanding the deformation mechanisms during tensile loading. The rule of mixtures (ROM) model and finite element model utilising local constitutive behaviour have exhibited their capability in predicting the overall response of AA2024 friction stir welded specimens [29][30][31]. However, these studies do not include porosity or defects in their models.…”

Section: Introductionmentioning

confidence: 99%

Effect of porosities on tensile properties of laser-welded Al-Li alloy: an experimental and modelling study

Liu

Lee

et al. 2017

Int J Adv Manuf Technol

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Aluminium-lithium (Al-Li) alloys are very attractive for aerospace applications due to their outstanding properties, such as high specific strength, high rigidity and good resistance to corrosion and fatigue, compared to conventional aluminium alloys. The butt joints of Al-Li 2A97-T3 alloy sheet produced by fibre laser welding with ER2319 filler wire were investigated in this paper. Uniaxial tensile tests have been performed to determine the nominal mechanical properties of the joints with and without porosities. In addition, a defect zone was defined in the welded specimens to investigate the effects of porosity on the joint tensile behaviour. The post-weld strength prediction (PWSP) model in a previous study has been extended by including the effects of the porosity in the welds to predict the overall response of the butt joints. The experimental and the modelling results show a good agreement, with the yield strength having a deviation lower than 5%. Both the yield strength and the ductility of the tensile specimens were observed to have decreased with the presence of porosities. The porosities aggravated the inhomogeneous deformation in the weld zone. Higher strain rate was found in the defect area than the remaining weld zone during plastic deformation, as the porosity in the specimen caused inhomogeneous deformation. It was found that this accelerated the failure of the specimen and lowered the global ductility significantly.

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Section: Introductionmentioning

confidence: 99%

Effect of porosities on tensile properties of laser-welded Al-Li alloy: an experimental and modelling study

Liu

Lee

et al. 2017

Int J Adv Manuf Technol

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“…Other recent methods to characterize the weld zone properties have been proposed based on the uni-axial tension test in accordance with the rule of mixture [21] or the uni-axial tension test using the sub-sized ASTM specimens [22]. However, applying the rule of mixture is rather questionable because the size of the area represented by the average measured properties is rather coarse.…”

Section: Introductionmentioning

confidence: 99%

A hierarchical multi-scale approach to mechanical characterization of heat affected zone in welded connections

Wudtke¹,

Talebi²,

Silani³

et al. 2015

Computational Materials Science

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“…Control of springback for the bending processes applied in practice is difficult for a number of reasons, especially in mass production [2,[9][10][11][12][13][14][15]. In the case of tailor-welded strips the quality of the weld is critical for a successful forming operation [16,17] and affected springback phenomenon [18,19]. Sheet metal forming processes, such as bending, stretching and drawing are widely applied industrially, but design of tools and selection of sheet material remain almost invariably dependent on trial and error [8].…”

Section: Introductionmentioning

confidence: 99%

Springback Characteristics of the Tailor-Welded 18g2a-E355 Steel Strips

Froń¹,

Stachowicz²

2013

Acta Metall Slovaca

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Recently many industry companies are trying to form different products by using tailor-welded blanks. A tailor-welded blank consists of two or more sheets that have been welded together in a single plane prior to forming. And the sheets joined by welding can be identical, or they can have different thickness, mechanical properties or surface coatings. Various welding processes, i.e. laser welding, mash welding, electron-beam welding or induction welding, can join them. Many studies presented a wide range of information about the formability and failure patterns of tailor-welded blanks and the springback of non-welded sheet metal parts. However, accurate prediction of the springback remains elusive, especially in the case of thick sheet metal. The purpose of this study was to predict the springback of the tailor-welded 18G2A-E355 steel strips. Especially, it was focused on comparing the differences of the mechanical properties and springback between the tailor-welded strips and non-welded ones under the same experimental conditions. The set-up mounted on the testing machine, instrumentation and process control system allows the rig to operate in displacement as well as load control. The MAG method with the Argon + CO 2 atmosphere was used for strips welding.

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Tensile testing for weld deformation properties in similar gage tailor welded blanks using the rule of mixtures

Cited by 111 publications

References 3 publications

Effect of porosities on tensile properties of laser-welded Al-Li alloy: an experimental and modelling study

Effect of porosities on tensile properties of laser-welded Al-Li alloy: an experimental and modelling study

A hierarchical multi-scale approach to mechanical characterization of heat affected zone in welded connections

Springback Characteristics of the Tailor-Welded 18g2a-E355 Steel Strips

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