Fracture Modelling of Concrete at Meso-scale Using Piece-wise Based Elastic-Plastic Lattice Model

被引：0

作者：

Zhang H. ^{[1
,2
]}

Jin Z. ^{[3
]}

Jiang N. ^{[1
]}

Ge Z. ^{[1
]}

Erik S. ^{[4
]}

Ling Y. ^{[1
]}

Branko Š. ^{[4
]}

Wang Z. ^{[5
]}

机构：

[1] School of Qilu Transportation, Shandong University, Jinan

[2] Suzhou Research Institute, Shandong University, Jiangsu, Suzhou

[3] School of Civil Engineering, Qingdao University of Technology, Shandong, Qingdao

[4] Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft

[5] Shandong Hi⁃speed Company Limited, Jinan

来源：

Cailiao Daobao/Materials Reports | 2023年 / 37卷 / 08期

关键词：

concrete; elastic⁃plastic constitutive relation; fracture process; lattice model; meso⁃scale;

D O I：

10.11896/cldb.21100198

中图分类号：

学科分类号：

摘要：

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. © 2023 Cailiao Daobaoshe/ Materials Review. All rights reserved.

引用

共 45 条

[1] Snozzi L, Caballero A, Molinari J F., Cement and Concrete Research, 41, 11, (2011)
[2] Zhou X Q, Hao H., International Journal of Solids and Structures, 45, 17, (2008)
[3] Li G, Xu Z H, Niu J G., Materials Reports B:Reaearch Papers, 32, 7, (2018)
[4] Du X L, Jin L., Engineering Mechanics, 30, 2, (2013)
[5] Yang Z J, Huang Y J, Yao F, Et al., Engineering Mechanics, 37, 8, (2020)
[6] Chen S, Wang Y, Ning C., Materials Reports B:Reaearch Papers, 30, 6, (2016)
[7] Mahmud G H, Yang Z J, Hassan A M T, Et al., Construction and Buil⁃ ding Materials, 48, (2013)
[8] Sangha C M, Dhir R K., Matériaux et Construction, 5, (1972)
[9] Huang L, Chen L X, Yan L B, Et al., Construction and Building Mate⁃ rials, 154, (2017)
[10] Kumar S, Mukhopadhyay T, Waseem S A, Et al., Strength of Materials, 48, (2016)

← 1 2 3 4 5 →