Finite element analysis of tailor-welded blanks

Zhao, Kunmin; Chun, B.K.; Lee, J. K.

doi:10.1016/s0168-874x(00)00026-3

Cited by 74 publications

(32 citation statements)

References 3 publications

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“…It is determined by the properties of the component blank sheets and the restraining forces with little influence of local friction or local weld properties [14]. Since the effect of local weld properties on the finite element simulation results is insignificant [4,6,10,15], and the focus is to study the effect of anisotropy on the deep-drawing process, the weld-line is excluded in the tailor-welded blank for this study. The two materials chosen for this study are widely used in automobile body parts manufacture and were extensively characterized [16].…”

Section: Finite Element Modelmentioning

confidence: 99%

“…Application of finite element methods to deep-drawing analysis, with the aim to better understand the forming processes, enables precise designing of tailor-welded sheet metal parts, the tools and the forming processes [6][7][8]10]. Many studies have been undertaken to determine the formability of tailor-welded blanks using standard tests, such as free bend test, stretch bend test, Limit Dome Height test, both experimentally and through simulation [10,11]. However, very little information is available regarding the effect of anisotropy under complex stress-strain states, such as that occurs, for example, in a square cup deep-drawing process.…”

Section: Introductionmentioning

confidence: 99%

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Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Padmanabhan

Baptista

Oliveira

et al. 2007

Journal of Materials Processing Technology

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Tailor-welded blanks made of dissimilar, uniform or non-uniform thickness materials have potential applications in automobile industries. Compared to the base metal, the formability of tailor-welded blank is less due to the presence of weld area and strength mismatch between component blanks. Most sheet metals used to produce tailor-welded blanks have anisotropy induced during pre-processing stage due to large deformation. The orientation of the blank sheet rolling direction and the combination of the blank sheet materials has significant influence on the deformation behaviour. The effect of anisotropy in the tailor-welded blank and the orientation of blank sheets rolling direction during deep-drawing process are investigated in this study. Finite element analysis of deep-drawing mild steel and dual-phase steel tailor-welded blank models was carried out using research purpose FE code DD3IMP; to form a basis for tailor-welded blank design and development for a part. Anisotropy in the blank sheets has moderate influence and its contribution to increased material flow depends on the mechanical properties of the blank sheets. Appropriate combination of the blank sheets rolling direction orientation can significantly improve the formability of the tailor-welded blank in the deep-drawing of square cup.

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Section: Finite Element Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Padmanabhan

Baptista

Oliveira

et al. 2007

Journal of Materials Processing Technology

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“…It is because of the fact that the contribution of the weld to the tensile load reduces as the size of the specimen increases.Although tensile testing of tailor welded blanks[TWB] is similar to other materials, some special considerations are to be considered in case of TWBs. The most important factor to be considered in testing of tailor welded blanks [TWB] is the size of the specimen [12]. The size of the specimen to be prepared dependents on whether the joint or the weld metal is to be tested.…”

Section: Forming Characteristics Of Twbsmentioning

confidence: 99%

Forming Characteristics of Tailor Welded Blanks

2017

IJMTER

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Abstract-The possibility of having dissimilar sheets of different thickness, strength, and material properties enable the designer to distribute the material optimally. Tailor welded Blank best suited for both automotive and aerospace applications. In producing of Tailor welded Blanks, a structural part or product is made by joining two or more metal sheets of possibly different thicknesses, materials, and surface coatings. The Demand for lightweight vehicles along with attractive and complicated geometric shapes is growing day to day in a rapid way. By reducing the weight of the vehicles, the fuel consumption and emissions are considerably reduced as well. For weight, cost reduction and for better utilization of scrap remained after some sheet metal operations, the Tailor Welded Blanks (TWBs) is a promising technology. This paper deals with forming characteristics of Tailor welded Blanks.

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“…In conclusion, the first-order hexahedral element can provide the best performance regarding accuracy and convergence rate. Recent studies have shown the possibility of using solid elements in the FEM models of metal sheets [28]. Nevertheless, a significant number of elements should be used so that both the strain and the stress field can be well described.…”

Section: Fem Modelmentioning

confidence: 99%

“…Nevertheless, a significant number of elements should be used so that both the strain and the stress field can be well described. This is a more specific topic when dealing with the bending of metal sheets [28]. The structuring meshing method has been used, meaning that the mesh has been refined were larger stresses and strains were expected.…”

Section: Fem Modelmentioning

confidence: 99%

Experimental and numerical analysis of a beam made of adhesively bonded tailor-made blanks

Monaco

Sinke

Benedictus

2008

Int J Adv Manuf Technol

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For aircraft structures, it is clear that the design and the selection of materials play an important role in the performance of the aircraft. The production costs are also important. The concept of tailor-made blanks (TMBs) is based on the use of dedicated blanks, made of different alloys and/or thickness in order to satisfy different demands such as an increase, if necessary, of local strength, stiffness, and damage tolerance. This paper describes the results of a study to assess the potential weight and cost savings of using TMBs in a typical aerospace structure. A bonded structure representing the floor beam of an aircraft has been selected, analyzed, and tested to validate the numerical and analytical predictions made with MATLAB and finite-element method. The results show weight reduction of 12% and 37% for two studied configurations, compared to the reference beam.

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Finite element analysis of tailor-welded blanks

Cited by 74 publications

References 3 publications

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Effect of anisotropy on the deep-drawing of mild steel and dual-phase steel tailor-welded blanks

Forming Characteristics of Tailor Welded Blanks

Experimental and numerical analysis of a beam made of adhesively bonded tailor-made blanks

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