Experimental and numerical study of machined aluminum tailor-made blanks

Zadpoor, Amir A.; Sinke, J.; Benedictus, Rinze

doi:10.1016/j.jmatprotec.2007.09.049

Cited by 38 publications

(17 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of the effects of the welding parameters are reflected in the heat input (Eq. [1]). However, the welding parameters may have other effects that cannot be understood without measurement of other involving factors such as the temperature profile.…”

Section: B Global Mechanical Propertiesmentioning

confidence: 99%

“…This may be described in terms of the heat input during the FSW estimated with Eq. [1]. The equation can be simplified if the friction coefficient and efficiency can be assumed to be similar:…”

Section: Local Mechanical Propertiesmentioning

confidence: 99%

“…That is because the high welding temperatures of fusion welding adversely affect the mechanical properties of precipitation-hardened aluminum alloys. New techniques such as machining, [1] adhesive bonding, [2,3] and alternative welding methods such as friction stir welding (FSW) have been suggested for production of TMBs in the aircraft industry.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Global and Local Mechanical Properties and Microstructure of Friction Stir Welds with Dissimilar Materials and/or Thicknesses

Zadpoor

Sinke

Benedictus

2010

Metall Mater Trans A

Self Cite

View full text Add to dashboard Cite

This article studies the properties of a wide range of friction-stir-welded joints with dissimilar aluminum alloys or thicknesses. Two aluminum alloys, namely, 2024-T3 and 7075-T6, are selected for the study and are welded in ten different combinations of alloys and thicknesses. The welding parameters are optimized for each configuration, and a systematic study of the effects of material and thickness combinations on the microstructural features, global and local mechanical properties, and fracture mechanisms of the welds is carried out. It is shown that dissimilar alloys are extruded into each other, the texture is heterogeneous in the weld zone, and that there is no significant diffusion of alloying elements between the alloys. For most configurations, the local and global mechanical properties decrease as the thickness ratio increases. The local yield strength and plasticity parameters substantially vary next to the weld centerline, hence requiring their implementation in finite element method (FEM) models. Machining to obtain a constant thickness significantly influences the mechanical properties of the welds. The fracture mechanism is found to be a mixture of ductile and brittle fractures and to qualify as ''quasi-cleavage.''

show abstract

Section: B Global Mechanical Propertiesmentioning

confidence: 99%

Section: Local Mechanical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Global and Local Mechanical Properties and Microstructure of Friction Stir Welds with Dissimilar Materials and/or Thicknesses

Zadpoor

Sinke

Benedictus

2010

Metall Mater Trans A

Self Cite

View full text Add to dashboard Cite

show abstract

“…-Welding processes, like laser beam welding, TIG welding, or friction stir welding [5,16] -Adhesive bonding -Local milling/machining of the sheet [7,16] The fabrication of TMB is based on several possibilities of combining sheets: different aluminum alloys and different thicknesses, as presented in Table 1. Considering all the possibilities, six variants of TMB can be derived, as shown in Fig.…”

Section: The Tmb Concept and Selected Materialsmentioning

confidence: 99%

“…However, the TWB concept, though by far the most advanced, is not the only concept for TMB. Alternatives are tailored blanks made by adhesive bonding [6] as discussed in this study and tailor-made blanks made by machining [7], i.e., that the thickness of a (thick) sheet is reduced locally before the forming operation. Since the literature on the latter type of TMB is scarce, the state of the art on some relevant aspects is reviewed by using the information on TWB.…”

mentioning

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

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Analytical relationships for prediction of the mechanical properties of additively manufactured porous biomaterials

Zadpoor

Hedayati

2016

J. Biomed. Mater. Res.

Self Cite

119

View full text Add to dashboard Cite

Recent developments in additive manufacturing techniques have motivated an increasing number of researchers to study regular porous biomaterials that are based on repeating unit cells. The physical and mechanical properties of such porous biomaterials have therefore received increasing attention during recent years. One of the areas that have revived is analytical study of the mechanical behavior of regular porous biomaterials with the aim of deriving analytical relationships that could predict the relative density and mechanical properties of porous biomaterials, given the design and dimensions of their repeating unit cells. In this article, we review the analytical relationships that have been presented in the literature for predicting the relative density, elastic modulus, Poisson's ratio, yield stress, and buckling limit of regular porous structures based on various types of unit cells. The reviewed analytical relationships are used to compare the mechanical properties of porous biomaterials based on different types of unit cells. The major areas where the analytical relationships have improved during the recent years are discussed and suggestions are made for future research directions. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 3164–3174, 2016.

show abstract

Experimental and numerical study of machined aluminum tailor-made blanks

Cited by 38 publications

References 30 publications

Global and Local Mechanical Properties and Microstructure of Friction Stir Welds with Dissimilar Materials and/or Thicknesses

Global and Local Mechanical Properties and Microstructure of Friction Stir Welds with Dissimilar Materials and/or Thicknesses

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

Analytical relationships for prediction of the mechanical properties of additively manufactured porous biomaterials

Contact Info

Product

Resources

About