IMPROVEMENT ON THE MODIFIED MAXIMUM ENTROPY METHOD FOR TEXTURE ANALYSIS BY PARTICLE SWARM OPTIMIZATION

Acta Metall Sin

2009, Vol. 45

Issue (1): 63-66 DOI:

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IMPROVEMENT ON THE MODIFIED MAXIMUM ENTROPY METHOD FOR TEXTURE ANALYSIS BY PARTICLE SWARM OPTIMIZATION

WANG Dapeng¹; WANG Dazhi²; WU Baolin¹; ZUO Liang³; WANG Fu³; LIANG Zhide³

1 School of Materials Science and Engineering; Shenyang Institute of Aeronautical Engineering; Shenyang 110136
2 College of Information Science and Engineering; Northeastern University; Shenyang 110004
3 School of Materials and Metallurgy; Northeastern University; Shenyang 110004

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WANG Dapeng WANG Dazhi WU Baolin ZUO Liang WANG Fu LIANG Zhide. IMPROVEMENT ON THE MODIFIED MAXIMUM ENTROPY METHOD FOR TEXTURE ANALYSIS BY PARTICLE SWARM OPTIMIZATION. Acta Metall Sin, 2009, 45(1): 63-66.

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Abstract

The particle swarm optimization (PSO) was successfully applied for the modified maximum entropy method (MMEM) of the quantitative texture analysis. Using two incomplete pole figures or only one incomplete pole figure, the complete orientation distributions of pure copper samples can been obtained. Such an improvement has been verified to keep the merits of primary MMEM, i.e., the complete orientation distribution function (ODF) of samples can be calculated using lesser experimental data, furthermore, the difficulty to choose a set of purposely initial solutions has also been overcome when solving the nonlinear equation, which makes the MMEM more versatile and practicable.

Key words: particle swarm optimization texture orientation distribution function modified maximum entropy method

Received: 23 April 2008

ZTFLH:

TG335.19

Fund:

Supported by National Natural Science Foundation of China (No.50771067) and Doctorate Research Project of Shenyang Institute of Aeronautical Engineering (No.BY2009-2953)

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2009/V45/I1/63

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