DYNAMIC ANALYSIS OF UNDERGROUND COMPOSITE STRUCTURES UNDER EXPLOSION LOADING

• Published in: Applied mathematics and mechanics Vol. 25; no. 3; pp. 272 - 278
• Main Author: 赵晓兵 薛大为 赵玉祥
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Nature B.V 01.03.2004; The Command Institute of the Second Artillery of PLA,Wuhan 430012, P.R.China%University of Macau, C. Postal 3001, Macau, P.R.China%Luoyang Hydraulic Engineering Technology Institute,Luoyang 471023, P.R.China
• Edition: English ed.
• Subjects: Calculus of variations; Composite structures; Equilibrium equations; Lagrange multiplier; Mathematical analysis; Underground explosions; Underground structures; 刚性匹配; 动力学分析; 地下复合建筑; 混凝土结构; 防水处理; rational rigidity matching; composite structure; dynamic analysis; generalized variation principle
• ISSN: 0253-4827; 1573-2754
• DOI: 10.1007/BF02437330

In selecting rational types of underground structures resisting explosion, in order to improve stress states of the structural section and make full use of material strength of each part of the section, the research method of composite structures is presented.Adopting the analysis method of micro-section free body, equilibrium equations, constraint equations and deformation coordination equations are given. Making use of the concept of generalized work and directly introducing Lagrange multiplier specific in physical meaning,the validity of the constructed generalized functional is proved by using variation method.The rational rigidity matching relationship of composite structure section is presentedthrough example calculations.