国家自然科学基金(51009020)

作品数：7被引量：15H指数：2
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相关作者：范书立王铭明陈健云徐强白卫峰更多>>
相关机构：大连理工大学中共四平市委昆明理工大学华北水利水电学院更多>>
相关期刊：《Acta Mechanica Solida Sinica》《Frontiers of Structural and Civil Engineering》《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》《Acta Mechanica Sinica》更多>>
相关主题：DAMAGECONCRETESTUDY橡胶混凝土黏土混凝土更多>>
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A study on the contraction joint element and damage constitutive model for concrete arch dams被引量：2
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2014年第3期208-218,共11页Qiang XU Jian-yun CHEN Jing LI Hong-yuan YUE 
Project supported by the National Natural Science Foundation of China （Nos. 51109029, 51178081, 51138001, and 51009020）, and the State Key Development Program for Basic Research of China （No. 2013CB035905）
A new contraction joint element model for the interface in different meshes between the arch dam sections is con- structed. The study on the elastic-plastic damage constitutive model for concrete, which is applied to ...
关键词：Contraction joint element DAMAGE CONCRETE Arch dam Constitutive model 
Study on spline wavelet finite-element method in multi-scale analysis for foundation
《Acta Mechanica Sinica》2013年第5期699-708,共10页Qiang Xu Jian-Yun Chen Jing Li Gang Xu Hong-Yuan Yue 
supported by the National Natural Science Foundation of China (51109029,51178081,51138001,and 51009020);the State Key Development Program for Basic Research of China (2013CB035905)
A new finite element method （FEM） of B-spline wavelet on the interval （BSWI） is proposed. Through analyzing the scaling functions of BSWI in one dimension, the basic formula for 2D FEM of BSWI is deduced. The 2D F...
关键词：Finite-element method Dynamic response B-spline wavelet on the interval Multi-scale analysis 
改善仿真混凝土塑性的两种方法被引量：6
《建筑材料学报》2013年第5期794-800,共7页王铭明 满志刚 陈健云 范书立 徐强 
国家自然科学基金资助项目(50909015,51009020);国家重点基础研究发展计划(973计划)项目(2013CB035905)
针对仿真混凝土材料脆性过大的特点,通过一系列的试验研究,提出了在原料中添加黏土或细橡胶颗粒来改善其脆性的2种方法.结果表明:与普通仿真混凝土相比,添加黏土可以改善仿真混凝土的脆性,增强其变形能力;依据黏土仿真混凝土的各力学参...
关键词：仿真混凝土 黏土混凝土 橡胶混凝土 塑性 变形性能 
MULTI-SCALE NUMERICAL MODEL FOR SIMULATING CONCRETE MATERIAL BASED ON FRACTAL THEORY被引量：2
《Acta Mechanica Solida Sinica》2013年第4期344-352,共9页Qiang Xu Jianyun Chen Jing Li Mingming Wang 
supported by the National Natural Science Foundation of China(Nos.51109029,51178081,51138001 and51009020);the China Postdoctoral Science Foundation(No.20110491535)
A new multi-scale numerical model is presented using the fractal theory and adopting FEM to simulate the failure of concrete.The relation between the fractal box dimension in large scale and the damage to concrete in ...
关键词：fractal theory concrete material fractal box dimension DAMAGE multi-scale constitutive relation 
Coupled elasto-plasticity damage constitutive models for concrete被引量：2
《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2013年第4期256-267,共12页Qiang XU Jian-yun CHEN Jing LI Gang XU 
Project supported by the National Natural Science Foundation of China(Nos.51109029,51178081,51138001 and 51009020);the China Postdoctoral Science Foundation(No.20110491535);the State Key Development Program for Basic Research of China (No.2013CB035905)
The paper is to design and construct a coupled elasto-plasticity damage constitutive model for concrete.Based on the energy dissipation principle,the Hsieh-Ting-Chen four-parameter yield function is used.The model can...
关键词：CONCRETE Damage constitutive models Hsieh-Ting-Chen four-parameter yield function Uniaxial tension Uniaxial compression Gravity dam Arch dam 
基于Schur分解的比例边界有限元方法求解环形域静电场被引量：3
《四川大学学报（工程科学版）》2013年第1期175-182,共8页白卫峰 何伟 张勇 
国家自然科学基金资助项目(51009020);华北水利水电学院高层次人才科研启动资助项目(201109)
应用比例边界有限元方法求解同轴电缆(环形域)静电场边值问题。为了避免特征值方法出现的奇异问题,采用Schur分解修正原有的特征值方法。在比例边界坐标变换的基础上,利用加权余量法将环形域静电场边值问题的控制方程半弱化为关于径向...
关键词：同轴电缆 静电场 边值问题 比例边界有限元 SCHUR分解 
Study of an artificial boundary condition based on the damping-solvent extraction method
《Frontiers of Structural and Civil Engineering》2012年第3期281-287,共7页Qiang XU Jianyun CHEN Jing LI Mingming WANG 
This study was supported by Project supported by the National Natural Science Foundation of China(Grant Nos.51109029,51178081,51138001,51009020);the China Postdoctoral Science Foundation(Grant No.20110491535).
A new artificial boundary condition for time domain analysis of a structure-unlimited-foundation system was proposed.The boundary condition was based on the damping-solvent extraction method.The principle of the dampi...
关键词：damping-solvent extraction method structure-unlimited-foundation system spring-damper system artificial damping limited region finite element method 
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