Research of Correctness on Internal Stress Measurement in Aluminum Alloy Thick Plate

Abstract:

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It’s necessary to research and analyze the correctness of internal stress measurement, in order to effectively deal with the measurement problem of stress field and rightly describe the distribution character of stress in aluminum alloy thick plate. Firstly, the total uncertainty of stress calculation in layer removal method (LRM) is determined by experimental error and model error, and less than ±10MPa, in which the accuracy of experiment is high. Secondly, in the integral calculation of LRM, a modified function is proposed by the multi-methods of simulation and experiment, and can compensate the deviation resulted from unpredictable error for experimental conditions. Then the multi-methods achieve the value of X-ray surface stress, simulation calculation and experimental results to consistent, the correctness of experimental calculation is enhanced. The research presents that the LRM can exactly describe distribution of internal stress in thick plate under special experiment conditions.

Info:

Periodical:

Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan

Pages:

3272-3278

DOI:

10.4028/www.scientific.net/AMR.383-390.3272

Citation:

K. Liao and Y. X. Wu, "Research of Correctness on Internal Stress Measurement in Aluminum Alloy Thick Plate", Advanced Materials Research, Vols. 383-390, pp. 3272-3278, 2012

Online since:

November 2011

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$35.00

[1] Gary S. Schajer, Michael B. Prime. Use of inverse solutions for residual stress measurement,. Journal of Engineering Materials and Technology, pp.375-382. July (2006).

[2] Jaroslav Mackerle. Finite element analysis and simulation of quenching and other heat treatment processes,. Computational Materials Science. Vol. 27, pp.313-332, (2003).

DOI: 10.1016/s0927-0256(03)00038-7

[3] Virkar, A. V. Determination of Residual Stress Profile Using a Strain Gage Technique,. Journal of the American Ceramic Society, 1990, 73(7): 2100-2102.

DOI: 10.1111/j.1151-2916.1990.tb05276.x

[4] Michael B Prime, Michael R Hill. Residual stress, stress relief, and inhomogeneity in aluminum plate,. Scripta Materialia, Vol, 46. pp.77-82. January (2000).

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

[6] E. Bendek, I. Lira, M. Franc-ois, C. Vial. Uncertainty of residual stresses measurement by layerremoval,. International Journal of Mechanical Sciences. Vol. 48, pp, 1429-1438. (2006).

DOI: 10.1016/j.ijmecsci.2006.07.002

[6] LIAO Kai, WU Yun-xin, GONG Hai. Analysis of measuring residual stress depth profiling in aluminum alloy thick plate using integral method,. Journal of Central South University. Vol. 41, pp.179-183. January (2010).

DOI: 10.1007/s11771-011-0692-8

[7] Schajer G S, Prime M B. Use of inverse solutions for residual stress measurement,. Journal of Engineering Materials and Technology. Vol. 128, p.375−382. March (2006).

[8] Kuang-Hua Fuh, Chih-Fu Wu. A residual-stress model for the milling of aluminum alloy (2014-T6),. Journal of Materials Processing Technology. Vol. 51, pp.87-105. (1995).

DOI: 10.1016/0924-0136(94)01355-5

[9] M. B. Prime,Michael R. Hill. Uncertainty analysis, Model Error, and Order Selection for Series-Expanded, Residual-Stress Inverse Solutions,. Journal of Engineering Materials and Technology. pp.175-185, November (2006).

DOI: 10.1115/1.2172278

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