Experimentally validated peridynamic fracture modelling of mortar at the meso-scale

被引：16

作者：

Hou, Dongshuai ^{[1
]}

Zhang, Wei ^{[1
]}

Ge, Zhi ^{[2
]}

Wang, Pan ^{[1
]}

Wang, Xinpeng ^{[1
]}

Zhang, Hongzhi ^{[2
]}

机构：

[1] Qingdao Univ Technol, Dept Civil Engn, Qingdao 266033, Peoples R China

[2] Shandong Univ, Sch Qilu Transportat, Jinan 250002, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 267卷

基金：

中国国家自然科学基金;

关键词：

Mortar; Peridynamics; Fracture behaviour; Mechanical properties; MONTE-CARLO SIMULATIONS; DYNAMIC FRACTURE; FINITE-ELEMENTS; CEMENT PASTE; CONCRETE; DAMAGE; CRACKING; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2020.120939

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Peridynamics (PD) model is a nonlocal theory to describe the formation of discontinuities, e.g., cracks and fractures due to deformations in the displacement field. The current study aims at implementing the Peridynamics theory on the fracture performance modelling of mortar at the meso-scale. For this purpose, a computational uniaxial tension test was performed on a multi-phase virtual specimen consisting of sand, hydrated cement paste and air voids. The mechanical properties of each phase were derived from the recent outcome of micromechanical models. The modelling results (stress-strain response and fracture pattern) were compared with the experimental observations in the literature. The comparison shows that, without further calibration, the PD theory can predict the load-displacement response and crack pattern satisfactorily. The model was further used to explain the load-displacement response and fracture process. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：11

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