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A Hybrid Local/Nonlocal Continuum Mechanics Modeling of Damage and Fracture in Concrete Structure at High Temperatures

Runze Song1, Fei Han1,*, Yong Mei2,*, Yunhou Sun2, Ao Zhang2

1 Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, International Research Center for Computational Mechanics, Dalian University of Technology, Dalian, 116023, China
2 Institute of Defense Engineering, AMS, Beijing, 100036, China

* Corresponding Authors: Fei Han. Email: email; Yong Mei. Email: email

(This article belongs to the Special Issue: Peridynamics and its Current Progress)

Computer Modeling in Engineering & Sciences 2022, 133(2), 389-412. https://doi.org/10.32604/cmes.2022.021127

Abstract

This paper proposes a hybrid peridynamic and classical continuum mechanical model for the high-temperature damage and fracture analysis of concrete structures. In this model, we introduce the thermal expansion into peridynamics and then couple it with the thermoelasticity based on the Morphing method. In addition, a thermomechanical constitutive model of peridynamic bond is presented inspired by the classic Mazars model for the quasi-brittle damage evolution of concrete structures under high-temperature conditions. The validity and effectiveness of the proposed model are verified through two-dimensional numerical examples, in which the influence of temperature on the damage behavior of concrete structures is investigated. Furthermore, the thermal effects on the fracture path of concrete structures are analyzed by numerical results.

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APA Style
Song, R., Han, F., Mei, Y., Sun, Y., Zhang, A. (2022). A hybrid local/nonlocal continuum mechanics modeling of damage and fracture in concrete structure at high temperatures. Computer Modeling in Engineering & Sciences, 133(2), 389-412. https://doi.org/10.32604/cmes.2022.021127
Vancouver Style
Song R, Han F, Mei Y, Sun Y, Zhang A. A hybrid local/nonlocal continuum mechanics modeling of damage and fracture in concrete structure at high temperatures. Comput Model Eng Sci. 2022;133(2):389-412 https://doi.org/10.32604/cmes.2022.021127
IEEE Style
R. Song, F. Han, Y. Mei, Y. Sun, and A. Zhang "A Hybrid Local/Nonlocal Continuum Mechanics Modeling of Damage and Fracture in Concrete Structure at High Temperatures," Comput. Model. Eng. Sci., vol. 133, no. 2, pp. 389-412. 2022. https://doi.org/10.32604/cmes.2022.021127



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