Damage and progressive failure of concrete structures using non-local peridynamic modeling  

作　　者：HUANG Dan1,2, ZHANG Qing1,2 & QIAO PiZhong1,3 1 State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China 2 Department of Engineering Mechanics, Hohai University, Nanjing 210098, China 3 Department of Civil and Environmental Engineering, Washington State University, Pullman, WA 99164-2910, USA 

出　　处：《Science China(Technological Sciences)》2011年第3期591-596,共6页中国科学（技术科学英文版）

基　　金：supported by the National Basic Research Program of China ("973" Project) (Grant No. 2007CB714104);the National Natural Science Foundation of China (Grant No. 10972072);the Fundamental Research Funds for the Central Universities (Grant No. 2009B14914);the Special Fund of State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering at Hohai University (Grant Nos. 2009587012, 2009585912)

摘　　要：Peridynamics (PD), a recently developed theory of solid mechanics, which employs a non-local model of force interaction and makes use of integral formulation rather than the spatial partial differential equations used in the classical continuum mechanics theory, has shown effectiveness and promise in solving discontinuous problems at both macro and micro scales. In this paper, the peridynamics theory is used to analyze damage and progressive failure of concrete structures. A non-local peridynamic model for a rectangular concrete plate is developed, and a central pairwise force function is introduced to describe the interior interactions between particles within some definite distance. Damage initiation, evolution and crack propagation in the concrete model subject to in-plane uni-axial tension, in-plane uni-axial compression and out-of-plane impact load are investigated respectively. The numerical results show that discontinuities appear and grow spontaneously as part of the solution to the peridynamic equations of motion, and no special failure criteria or re-meshing techniques are required, which proves the potential of peridynamic modeling as a promising technique for analyzing the progressive failure of concrete materials and structures.

关 键 词：CONCRETE DAMAGE progressive failure peridynamic model DISCONTINUITIES 

分 类 号：TU375[建筑科学—结构工程] TU45