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中文核心期刊

流体弹塑性理论模型的历史意义和发展前景

HISTORICAL SIGNIFICANCE AND DEVELOPMENT PROSPECT OF HYDRO-ELASTO-PLASTIC THEORY MODEL

  • 摘要: 郑哲敏与合作者一起创建的流体弹塑性理论, 是研究强作用下物质力学行为特征的一门基础工程科学. 该理论从创建至今近60年, 经历了模型化、软件化、工程化等发展阶段, 日臻成熟, 从中研发出的系列工程化模型, 对解决强爆炸效应等科学计算难题, 起到了核心支撑作用. 具体工程应用中, 尚须进一步发展, 需要做到: 完善的理论能真实反映岩石力学多变行为、成熟的模型能全面描述强作用下岩石破坏过程、新型计算框架能满足基础理论普适性要求、多种材料试验能提供仿真全方位数据需求、破坏分区能精细刻画常规侵彻爆炸破坏特征. 做到上述内容, 需继续完善该理论模型, 建立起国家层面的工程化构架和标准, 并研发可外挂到数值仿真软件系统的流体弹塑性模型软件包和相应数据库.

     

    Abstract: The hydro-elasto-plastic theory independently created by Che-Min Cheng and his collaborators is a fundamental engineering science to investigate the mechanical properties of materials under violent dynamic loads. The theory has been in development for nearly 60 years since its establishment, and it has gone through the development stages of modeling, software, and engineering, and become increasingly mature. The series of engineering models developed form it have played a core supporting role in solving scientific computing problems such as strong explosive effects. However, in specific engineering applications, further development is required, and the following aspects should be done, such as improving the theory which can truly reflect the changeable behavior of rock mechanics, developing the mature model which can comprehensively describe the failure process of rock under violent dynamic loads, establishing a new computing framework which can meet the universal requirements of basic theory, conducting a variety of material tests which can provide all-round data requirements for numerical simulations, and establishing refined zones which can describe the damage characteristics of conventional penetration and explosion effects. To achieve the above, it is necessary to further improve the theory model, establish engineering frameworks and standards at the national level, and develop hydro-elasto-plastic model software packages and corresponding databases which can be plugged into the numerical simulation software system.

     

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