Distribution Character of Structural Stress for Aluminum Alloy Thick Plate

Article Preview

Abstract:

Generation of structural stress in aluminum alloy thick plate is divided into three stages including the early, stable and late period using thermodynamics and elasticity theory. With FEM and mechanical state of materials, nonuniform plastic deformation is discussed, and distributions and characters of structural stress are analysized in each stage. Finally, experimental results agreed with date of the FEM. This truth demonstrated that mechanism of stress that changes in the process of thermal field works on formation of the final residual stress in the thick plate.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 311-313)

Pages:

1930-1934

Citation:

Online since:

August 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] LIN G Y. Fundamentsl Research Relsted to The Fabrication Technology for High Quality Thick Plates of 7X75 Series Aluminum Alloys , Central South University, 2006.

Google Scholar

[2] HU S Q, ZENG S M. The Theoretical Model of the Thermal Stress Evolution Mechanism during Quenching of no Phase Change Alloy — (1) The Corner and Edge Model for Thermal Stress during Quenching and the Corner Effect during Quenching, Rare Metal Materials and Engineering Vol.35 (2006),p.538.

Google Scholar

[3] DENG Y L, ZHANG X M, LIU Y. Inhomogeneities of icrostructures and micro-orientations in cold-rolled high purity Al columnar grains, The Chinese Journal of Nonferrous Metals Vol.15(2005),p.1173.

Google Scholar

[4] F. Lefebvre, S. Ganguly, I. Sinclair. Micromechanical aspects of fatigue in a MIG welded aluminium airframe alloy:Part 1. Microstructural characterization, Materials Science and Engineering A Vol.397(2005),p.338.

DOI: 10.1016/j.msea.2005.02.051

Google Scholar

[5] Todinov, M.T.. Mechanism for formation of the residual stresses from quenching, Modelling and Simulation in Materials Science and Engineering Vol.6 (1998),p.273.

DOI: 10.1088/0965-0393/6/3/006

Google Scholar

[6] L. LI, J. ZHOU, J. DUSZCZYK, Prediction of temperature evolution during the extrusion of 7075 aluminium alloy at various ram speeds by means of 3D FEM simulation[J]. Materials Processing Technology Vol.145(2004),p.360.

DOI: 10.1016/j.jmatprotec.2003.09.003

Google Scholar

[7] Michael B Prime, Michael R Hill. Residual stress, stress relief, and inhomogeneity inaluminum plate[J]. Scripta Materilia Vol. 46 (2002),p.77.

DOI: 10.1016/s1359-6462(01)01201-5

Google Scholar

[8] KE Ying-lin, DONG Hui-yu. Pre-stretching process and its application in reducing residual stress of quenched 7075 aluminum alloy thick-plate[J]. The Chinese Journal of Nonferrous Metal, 14(2004):639-645.

Google Scholar