Experimental identification of yield surface of Al–Cu bimetallic sheet

Uścinowicz, Robert

doi:10.1016/j.compositesb.2013.06.002

Cited by 16 publications

(4 citation statements)

References 12 publications

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“…The effect of anisotropy in bimetal sheets has been the subject of much research. The study [7] experimentally investigated the effect of the anisotropy of specimens made from aluminum/ copper (Al/Cu) sheets fabricated by a rolling process. Less attention has been devoted to the behavior of plastic anisotropy caused by the textures and mechanical properties of bimetal sheets in the forming processes.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Numerical study on the effect of anisotropy on deformation behavior of aluminum bilayer sheets in single point incremental metal forming

Mohammed

Batbooti

Jabbar

2022

EEJET

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The anisotropy of metals is an important property that has a significant impact on the dimensional accuracy of components in manufacturing. In metal forming processes significant attention has been given to multilayer composite sheets as they may combine the advantages of materials with various mechanical properties. In this study, the effect of anisotropy is investigated in the process of single point incremental forming (SPIF) of aluminum bilayer sheets. The finite element method (FEM) is used to study the effect of layer arrangement and the anisotropy of metal sheets relative to the rolling direction. For the effective description of sheet metal anisotropy, the two-dimensional Yld2000-2D yield function is implemented in Abaqus software using a material subroutine (VUMAT). The calculation and calibration of the coefficients of Yld2000-2D in accordance with the experimental data were performed using a MATLAB code. For comparison, the anisotropic coefficients of Yld2000-2D were replaced by unit values in the same VUMAT to investigate forming behavior in the isotropic case with the von Mises yield function. Anisotropic and isotropic models are compared in a conical geometry by assessing equivalent plastic strain, sheet thickness, and forming tool reaction forces. Our findings show that anisotropy of sheet metal causes less variation in material properties compared to the isotropic case, significantly affecting the stiffness and, subsequently, the final shape dimensional accuracy of the formed component. The results of the study have a practical application in that they can be used to identify strategies for anisotropic bimetal sheets to improve such material forming processes

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Numerical study on the effect of anisotropy on deformation behavior of aluminum bilayer sheets in single point incremental metal forming

Mohammed

Batbooti

Jabbar

2022

EEJET

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“…The composite has the advantages of excellent conductivity as well as low weight, which cannot be obtained from single copper or aluminum. Industrial products of Cu/Al composite include Cu/Al composite joints [1], Cu/Al bimetallic sheets [2][3][4], Cu/Al flat bar [5] and CCA wires [6]. CCA wires refer to the composite wires that copper layer concentrically coated on the surface of aluminum core conductor, implementing solid combination of two metals on the interface and forming an integral.…”

Section: Introductionmentioning

confidence: 99%

Effect of Annealing Treatment on the Mechanical Properties of Cu-Ni-Si/Al-Mg-Si Clad Composite Wires

Yang

Xie

et al. 2017

MSF

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Copper-clad aluminum (CCA) composite wires have been widely used in cable industry. Especially for the application in aerospace, the light weight character of wires is particularly important. To improve the mechanical properties of wires, Cu-Ni-Si alloy and Al-Mg-Si alloy are employed to replace pure copper and pure aluminum, respectively. The objective of this work is to find the appropriate annealing treatment conditions to produce the Cu-Ni-Si/Al-Mg-Si clad composite wires with optimal combination properties. The wires were fabricated by a drawing process and heat treatment at different temperatures and times. Mechanical and electrical properties dependent on outer Cu-Ni-Si, internal Al-Mg-Si and interface properties, are characterized and analyzed. The fracture behavior of Cu-Ni-Si/Al-Mg-Si clad composite wires was studied together with the stress-strain curves of the composite wires.

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“…Başka bir çalışmada, Mg/Al/Paslanmaz çelik (AZ31/Al3004/AISI 430) üç katmanlı sacının hasara uğradığı şekil değiştirme miktarının karışım kuralına uymadığını belirtilmiştir(Kim ve Hong, 2013). Yapılan bazı çalışmalarda katmanlı sacların akma gerilmesi, kopma gerilmesi, elastisite modülü gibi mekanik özellikleri karışım kuralı ile belirlenmiştir(Choi ve ark., 1997; Oya ve ark., 2010;Uscinowicz, 2013).…”

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Yapıştırma ile Oluşturulmuş Al-Çe Katmanlı Sacların Dizilime Bağlı Olarak Mekanik Özelliklerinin Belirlenmesi

Dengiz

Yıldızlı

2023

Karadeniz Fen Bilimleri Dergisi

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Katmanlı saclar iki veya daha fazla metalin farklı yöntemler ile birleştirilmesi ile oluşturulan kompozit yapılardır. Sac metaller haddeleme yöntemi ile üretildikleri için yöne bağlı olarak farklı mekanik özellikler gösterebilirler. Dolayısı ile bu sacların birleştirilmesi ile oluşturulan katmanlı sacların da dizilim yönlerine göre farklı özellik göstermesi beklenir. Bu çalışma kapsamında alüminyum ile çelik sacların birleştirilmesi ile oluşturulmuş katmanlı sacların mekanik özellikleri incelenmiştir. Çalışmada öncelikle tekil ve katmanlı sacların mekanik özellikleri çekme testi ile belirlenmiştir. Çekme testi sonucunda elde edilen akma gerilmesi, kopma dayanımı, uzama miktarı, pekleşme üsteli gibi farklı parametreler karşılaştırılmıştır. Ayrıca sacların anizotropi katsayıları belirlenerek derin çekme işlemlerinde oluşabilecek olan kulaklanma durumu hakkında yorum yapılmıştır. Çalışma sonucunda katmanlı sacların mekanik özelliklerinin kendisi oluşturan sacların mekanik özelliklerinin arasında olduğu belirlenmiştir. Ayrıca alüminyum sac üzerine hadde yönüne göre farklı dik, paralel ve diagonal şekilde çelik sac yapıştırılarak anizotropik özelliklerin minimize edilebileceği belirlenmiştir. Dolayısı ile derin çekme gibi sac metal şekillendirme işlemlerinde daha kısa kulak yükseklikleri elde etmek mümkün olmaktadır.

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Experimental identification of yield surface of Al–Cu bimetallic sheet

Cited by 16 publications

References 12 publications

Numerical study on the effect of anisotropy on deformation behavior of aluminum bilayer sheets in single point incremental metal forming

Numerical study on the effect of anisotropy on deformation behavior of aluminum bilayer sheets in single point incremental metal forming

Effect of Annealing Treatment on the Mechanical Properties of Cu-Ni-Si/Al-Mg-Si Clad Composite Wires

Yapıştırma ile Oluşturulmuş Al-Çe Katmanlı Sacların Dizilime Bağlı Olarak Mekanik Özelliklerinin Belirlenmesi

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