Print Email Facebook Twitter 基于分段步进式弹塑性格构模型的混凝土破坏过程细观模拟 Title 基于分段步进式弹塑性格构模型的混凝土破坏过程细观模拟 Author Zhang, H. (Shandong University) Jin, Zuquan (Qingdao University of Technology) Jiang, Nengdong (Shandong University) Ge, Zhi (Shandong University) Schlangen, E. (TU Delft Materials and Environment) Ling, Yifeng (Shandong University) Šavija, B. (TU Delft Materials and Environment) Wang, Zheng (Shandong Hi-Speed Group) Date 2023 Abstract The classically lattice model assumes the local elements behave elastic brittle, neglecting the ductility of the mortar matrix. This leads to the simulated load⁃displacement response more brittle than the realistic. To solve the aforementioned issue, a piece⁃wise approach was introduced to describe the elastic⁃plastic constitutive relation of lattice element. The fracture process and the load⁃displacement response were obtained through the sequentially⁃linear solution approach. The model was calibrated using the uniaxial tension and compression tests. It is found that the model can precisely simulate the fracture process and load⁃displacement response. Moreover, the model was used to model the size effect in uniaxial tension and the influence of the specimen’s slenderness and boundary confinement on the fracture behavior under compression. It offers a new theoretical method and approach for studying the fracture of concrete. Subject concreteelastic⁃plastic constitutive relationfracture processlattice modelmeso⁃scale To reference this document use: http://resolver.tudelft.nl/uuid:bf642704-ee39-4d2e-93ba-3735bd79bc62 DOI https://doi.org/10.11896/cldb.21100198 Embargo date 2023-10-25 ISSN 1005-023X Source Cailiao Daobao/Materials Reports, 37 (8) Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2023 H. Zhang, Zuquan Jin, Nengdong Jiang, Zhi Ge, E. Schlangen, Yifeng Ling, B. Šavija, Zheng Wang Files PDF Fracture_Modelling_of_Con ... _Model.pdf 13.19 MB Close viewer /islandora/object/uuid:bf642704-ee39-4d2e-93ba-3735bd79bc62/datastream/OBJ/view