| 计算智能在微尺度力学研究中的应用 |
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| 引用本文： | 舒阳,舒思齐.计算智能在微尺度力学研究中的应用[J].工程力学,2009(6). |
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| 作者姓名： | 舒阳 舒思齐 |
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| 作者单位： | 天津大学建筑工程学院;中国科学院力学研究所; |
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| 摘 要： | 微尺度力学的研究常遇到力学模型分析、复杂本构方程求解和跨尺度计算等问题,而传统的数学方法很难给出所研究的微尺度力学问题的解析解。该文探讨运用计算智能方法(主要包括人工神经网络、遗传算法和模糊数学等知识)对微尺度材料的力学行为进行研究。首先,采用人工神经网络建立微尺度材料的纳米压痕硬度随压痕深度变化的力学模型,并用其预测氧化镁材料的纳米压痕硬度;其次,运用遗传算法对A533-B号钢的球形压痕的载荷-位移曲线进行反分析,进而获取其力学参数。
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| 关 键 词： | 尺度效应 微尺度力学 计算智能 纳米压痕 反问题 |
THE APPLICATION OF COMPUTING INTELLIGENCE ON THE RESEARCH OF MICRO-SCALE MECHANICS |
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| SHU Yang,SHU Si-qi.THE APPLICATION OF COMPUTING INTELLIGENCE ON THE RESEARCH OF MICRO-SCALE MECHANICS[J].Engineering Mechanics,2009(6). |
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| Authors: | SHU Yang SHU Si-qi |
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| Affiliation: | *SHU Yang1,SHU Si-qi2 (1. Construction Engineering College,Tianjin University,Tianjin 300072,China,2. Institute of Mechanics,Chinese Academy of Sciences,Beijing 100080,China) |
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| Abstract: | Based on the traditional mathematical methods, the analysis solutions for micro-scale mechanics problems are not usually solved properly for the building of a mechanical model, the solving of comprehensive constitutive equations and multi-scale computing need to be dealt with. In the present paper, computing intelligence, which includes artificial neural network, genetic algorithm, fuzzy mathematics and others, is used to study the mechanical behaviors of micro-scale materials. First, the mechanical model b... |
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| Keywords: | size effect micro-scale mechanics computing intelligence nanoindentation inverse problem |
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