集成人工智能的计算机方法在fg -碳纳米管增强Mindlin镂空复合材料板非线性后屈曲行为中的应用

IF 2.9 3区 工程技术 Q2 MECHANICS
Bo Cheng, Yanmei Sun, A. Horri
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引用次数: 0

摘要

利用计算机数值方法结合不同技术的某些优势,可以提高非线性后屈曲分析的精度、效率和稳定性。结合先进的计算机数值方法,对功能梯度碳纳米管切割的Mindin复合材料板进行了非线性后屈曲计算分析。它将能量法、瑞利-里兹数值法和域计算机分解方法与牛顿-拉夫森迭代格式相结合,以有效地求解控制非线性方程。采用一阶剪切变形理论对结构行为进行建模,考虑了纳米复合材料板厚度对配筋强度的影响,采用了Mori-Tanaka均质化技术对材料性能的影响。基于应用计算机方法,分析了碳纳米管分布、弹性基础、外加磁场等关键参数对计算框架的影响。结果表明,CNTs的存在增强了材料的屈曲后性能。本研究的一个重要贡献是混合数值技术对碳纳米管增强复合材料结构非线性后屈曲预测的鲁棒性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of computer approach integrating AI for nonlinear post-buckling behavior of Mindlin cut-out composite plates reinforced with FG-carbon nanotubes

Using computer numerical methods to combine certain strengths of different techniques produces enhanced accuracy, efficiency and stability in nonlinear post-buckling analysis. A combination of advanced computer numerical methods is carried out for nonlinear post-buckling computational analysis of Mindin composite plates cut-out by the functionally graded-carbon nanotubes. It combines the energy methodology, Rayleigh–Ritz numerical and domain computer decomposition methods with the Newton–Raphson iterative scheme in order to efficiently solve the governing nonlinear equations. The structural behavior is modeled using first-order shear deformation theory and as the reinforcement variation through the nanocomposite plate thickness is considered, the material property variation from the Mori–Tanaka homogenization technique is used. The effects of several key parameters such as such as CNT distribution, elastic foundation, and external magnetic field on the computational framework are analyzed based on applied computer methods. Based on results, the presence of CNTs enhances the post-buckling performance. An important contribution of this study is robustness of hybrid numerical techniques for prediction of nonlinear post-buckling in CNT-reinforced composite structures.

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来源期刊
Acta Mechanica
Acta Mechanica 物理-力学
CiteScore
4.30
自引率
14.80%
发文量
292
审稿时长
6.9 months
期刊介绍: Since 1965, the international journal Acta Mechanica has been among the leading journals in the field of theoretical and applied mechanics. In addition to the classical fields such as elasticity, plasticity, vibrations, rigid body dynamics, hydrodynamics, and gasdynamics, it also gives special attention to recently developed areas such as non-Newtonian fluid dynamics, micro/nano mechanics, smart materials and structures, and issues at the interface of mechanics and materials. The journal further publishes papers in such related fields as rheology, thermodynamics, and electromagnetic interactions with fluids and solids. In addition, articles in applied mathematics dealing with significant mechanics problems are also welcome.
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