PFC2D simulation of thermally induced cracks in concrete specimens

N/ACitations
Citations of this article
7Readers
Mendeley users who have this article in their library.

Abstract

The appearance of cracks exposed to severe environmental conditions can be critical for concrete structures. The research is to validate Particle Flow Code(PFC2D) method in the context of concrete thermally-induced cracking simulations. First, concrete was discreted as meso-level units of aggregate, cement mortar and the interfaces between them. Parallel bonded-particle model in PFC2D was adapted to describe the constitutive relation of the cementing material. Then, the concrete mechanics meso-parameters were obtained through several groups of biaxial tests, in order to make the numerical results comply with the law of the indoor test. The concrete thermal meso-parameters were determined by compared with the parameters in the empirical formula through the simulations imposing a constant heat flow to the left margin of concrete specimens. At last, a case of 1000mm×500mm concrete specimen model was analyzed. It simulated the formation and development process of the thermally-induced cracks under the cold waves of different durations and temperature decline. Good agreements in fracture morphology and process were observed between the simulations, previous studies and laboratory data. The temperature decline limits during cold waves were obtained when its tensile strength was given as 3MPa. And it showed the feasibility of using PFC2D to simulate concrete thermally-induced cracking. © 2013 AIP Publishing LLC.

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Cite

CITATION STYLE

APA

Liu, X., Chang, X., Zhou, W., & Li, S. (2013). PFC2D simulation of thermally induced cracks in concrete specimens. In AIP Conference Proceedings (Vol. 1542, pp. 261–264). https://doi.org/10.1063/1.4811917

Readers over time

‘13‘15‘17‘19‘20‘2400.511.52

Readers' Seniority

Tooltip

PhD / Post grad / Masters / Doc 4

67%

Professor / Associate Prof. 2

33%

Readers' Discipline

Tooltip

Engineering 4

67%

Earth and Planetary Sciences 1

17%

Materials Science 1

17%

Save time finding and organizing research with Mendeley

Sign up for free
0