科研成果

2019
刘奕, 陈永强, 王刚桥, 吴志鹏.; 2019. 基于数据与模型混合的仿真计算方法及装置. China patent CN
周琪, 陈永强. 轴对称薄壁结构自由振动的边界元分析. 力学学报. 2019;51:146-158.PKU 
2018
周琪. 薄壁结构热应力和波结构耦合的边界元分析. 工学院力学与工程科学系. 2018;硕士:89.
陈永强, 刘奕. 情景计算及其在公共安全中的应用, in 2018公共安全高峰论坛. 崇礼; 2018:144.
吴志鹏, 陈永强. 高性能边界元法模拟复合材料黏性界面分离, in 北方七省市区力学会议.; 2018.
樊振强, 吴志鹏, 谢依钒, 刘奕, 陈永强. 基于情景计算的城市地震灾害分析, in 第17届北方七省市区力学学会学术会议. 焦作; 2018.
从超男, 陈永强. 石墨烯/蒙脱土/聚合物复合材料的细观力学模型, in 全国固体力学学术会议.; 2018.
黄君豪, 陈永强. 边界元法单元积分精度的几何指标研究, in 北方七省市区力学会议. 河南省力学学会; 2018.
Qi ZHOU, Yong-Qiang CHEN. Acoustic-Structural Analysis of Thin-Walled Axisymmetric Structure Using Boundary ElementMethod, in CCCM-ISCM2018. Nanjing; 2018.
Zhen-Qiang FAN, Yi LIU, Yong-Qiang CHEN. Analysis of Urban Earthquake Disaster by ScenarioComputing, in Chinese Conference on Computational Mechanics 2018 in conjunction with the 5th Qian Ling-xi Computational Mechanics Awarding CeremonyInternational Symposium on Computational Mechanics 2018. Nanjing; 2018.
Wu Z, Chen Y. application of BEM in interface debonding of composites, in Chinese Conference on Computational Mechanics in conjunction with International Symposium on Computational Mechanics.; 2018.
Huang J, Chen Y. A Geometry Index Study for Element Integral Accuracy of Boundary Element Method, in Chinese Conference on Computational Mechanics in conjunction with International Symposium on Computational Mechanics.; 2018.
Zhang Z, Chen Y, Huang Z. A novel constitutive model for geomaterials in hyperplasticity. Computers and Geotechnics. 2018;98:102-113.Abstract
This paper proposes a new constitutive model for geotechnical materials that consists two basic constitutive functions, the free energy function and the dissipation rate function, within the framework of hyperplastic theory. This free energy function is capable of describing the pressure-dependent elastic behavior of soils. The new constructed dissipation rate function accounts for the frictional mechanism of energy dissipation. Based on this dissipation rate function, the non-associated flow rule can be obtained. Furthermore, the convexity of the yield surface that is derived from the dissipation rate function is proved. Predictions of the behavior of a soil sample using this new constitutive model agree well with triaxial test data under drained and undrained conditions.
刘奕, 王刚桥, 吴志鹏, 樊振强, 陈永强. 面向深度不确定系统的情景计算方法. 系统仿真学报. 2018;30:3608-3615.AbstractPKU 
提出了一种面向深度不确定系统的情景计算方法,该方法由三部分组成:混合建模、多样性计算、交互验证。混合建模是基于已有模型和相关数据,实现快速高效的动态建模;多样性计算指通过大规模计算实现对系统多样化演化的分析和预测;交互验证是基于人工计算系统与真实客观系统之间的交互验证保障情景计算结果的有效和可靠。给出了地震波经过建筑物后的传播与叠加效应计算和交通与驾驶行为计算两个算例,分析了情景计算方法对不确定系统仿真计算的有效性与应用前景。
贾楠, 郭旦怀, 陈永强, 刘奕. 面向社区风险防范的大数据平台理论架构设计. 清华大学学报. 2018:1-7.AbstractPKU 
社区是公共安全治理的基本单元,社区安全研究意义重大.该文面向社区风险防范的重大需求,首先,从人、物及管理3个角度厘清社区风险的来源,剖析社区风险的特性及原因;然后,阐述社区风险防范的内涵,提出监测监控,预测预警和智能防范是社区风险防范的关键技术,在综合分析当前风险防范研究现状及发展趋势的基础上,指出大数据平台是社区风险防范的基础支撑;最后,分别从功能、结构及构建流程3个层面展开面向社区风险防范大数据平台的理论架构设计.为社区风险防范及大数据平台的基础理论研究大数据平台搭建及风险防范提供理论和技术支撑.
2017
Zhang ZG, Chen YQ, Huang ZP. Equivalent inclusions in micromechanics with interface energy effect. Applied Mathematics and Mechanics. 2017;38:1497-1516.Abstract
In order to apply classical micromechanics in predicting the effective prop-erties of nanocomposites incorporating interface energy, a concept of equivalent inclusion (EI) is usually adopted. The properties of EI are obtained by embedding a single inclusion with the interface into an infinite matrix. However, whether such an EI is universal for different micromechanics-based methods is rarely discussed in the literature. In this pa-per, the interface energy theory is used to study the applicability of the above mentioned EI. It is found that some elastic properties of the EI are related only to the properties of the inclusion and the interface, whereas others are also related to the properties of the matrix. The former properties of the EI can be applied to both the classical Mori-Tanaka method (MTM) and the generalized self-consistent method (GSCM). However, the latter can be applied only to the MTM. Two kinds of new EIs are proposed for the GSCM and used to estimate the effective mechanical properties of nanocomposites.
周琪, 陈永强. 三维薄壁结构应力和自由振动分析的双互易边界元法, in 边界元法与降维方法进展与应用研讨会. 桂林; 2017.
周琪, 陈永强. 薄壁轴对称结构的自由振动和受迫振动, in 力学大会2017. 北京; 2017.
周琪, 陈永强. 轴对称薄壁结构的自由振动分析, in 北京力学会第二十三届学术年会. 中国北京; 2017.
张振国, 陈永强, 黄筑平. 残余界面应力对纤维纳米复合材料热弹性性质的影响. 北京力学会第二十三届学术年会. 2017:3.Abstract
界面效应对纳米复合材料的性质具有重要的影响。但是,大部分文献只考虑了界面弹性的影响,还有一些文献只考虑了残余界面应力的影响。本文利用细观力学方法和一个基于能量的界面理论,同时考虑了界面弹性和残余界面应力,系统地研究了纤维增强纳米复合材料的有效热力学性质,并重点讨论了残余界面应力的影响。本文研究表明,残余界面应力对于纳米复合材料的热力学性质具有重要的影响,不可忽略。

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