Title: A numerical study of crack propagation with variable temperature in steel structures using peridynamic constitutive model
Authors: Jinhai Zhao; Haiyan Gao; Xiaokang Guo
Addresses: College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China; Department of Civil Engineering, Zhejiang University City College, Hangzhou, 3100151, China; Department of Civil Engineering, Tongji University, Shanghai 20092, China ' Department of Civil Engineering, Tongji University, Shanghai 20092, China ' Shanghai Baoye Group Corp., Ltd, Shanghai, 200941, China
Abstract: Compared with other structures, steel structures have many advantages, such as high strength, small weight, large ductility, good seismic performance, fast construction progress, flexible layout and reusable construction. However, the problem of fire resistance is its fatal flaw. Because the material properties of steel changed significantly with the temperature rising, especially the steel structure with cracks, which brought considerable losses to people's lives and property. Therefore, considering the material properties changed with temperature, we introduced the temperature load into the peridynamic constitutive equation to simulate the cracks propagation paths in steel structures with temperature rising.
Keywords: expansion coefficient; elastic modulus; thermo-solid coupling; bilateral cracks.
International Journal of Hydromechatronics, 2021 Vol.4 No.2, pp.116 - 141
Received: 11 May 2020
Accepted: 28 May 2020
Published online: 06 Aug 2021 *