Paper Title:
Random Aggregate Generation and Mesoscale Modeling of Concrete under High Strain Rate Compression
  Abstract

In the mesoscale modeling, concrete is assumed consisting of three components, i.e., coarse aggregates, mortar matrix, and the interfacial transition zone (ITZ), each with different material behavior. The shape and the percentage of the coarse aggregate are the key factors in the mesoscale numerical simulation. The present paper investigates the effect of the coarse aggregate shape on the concrete behavior under high strain rate compression. Simplified methods are adopted to construct the aggregate distribution. Three different aggregate shapes, i.e., circular, oval and polygons, are generated to model the gravel and crushed stone aggregates, respectively. Using these different aggregate shapes, concrete specimens under high strain rate compression are modeled. Numerical results show that the aggregate shapes have a significant effect on the crack path, whereas little effect on the overall responses of the concrete specimen.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Building Materials
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
733-736
DOI
10.4028/www.scientific.net/AMM.71-78.733
Citation
X. Q. Zhou, Y. Xia, "Random Aggregate Generation and Mesoscale Modeling of Concrete under High Strain Rate Compression", Applied Mechanics and Materials, Vols. 71-78, pp. 733-736, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhan Qi Guo, Gui Ming Wang, Piet Stroeven, Zhong He Shui
Abstract:The influence of concrete meso-structure and coarse aggregate size on early age crack is studied. In this study, concrete is regarded as a...
677
Authors: Hai Feng Yang, Zhi Heng Deng, Ying Huang
Abstract:43 Φ50mm × 100mm column stress - strain curve tests are completed through RMT-201, which studied the compressive stress - strain curves of...
900
Authors: Zhen Shuang Wang, Li Jiu Wang, Hao Lin Su
Abstract:According to frame concrete theory, Concrete was composed of mortar matrix, coarse aggregate, and transition zone between mortar matrix and...
1085
Authors: Seung Hyun Ryu, Young Oh Lee, Sun Woo Kim, Hyun Do Yun
Abstract:Acoustic emission (AE) is a powerful nondestructive test that can be used to characterize cracking, growth of cracks, and the degree of...
2528
Authors: Shu Hua Liu, Zhi Yang Gao, Li Hua Li
Chapter 2: Inorganic Nonmetallic Materials
Abstract:In this testing research, a series of High Performance Recycled Aggregate Concrete (HPRAC) with recycled aggregate were prepared and their...
190