Paper Title:
Damage Analysis for Quasi-Birttle Materials of CT Image under Uniaxial Compression
  Abstract

In the damage research before on the CT image of quasi-brittle materials such as concrete, the damage evolution is often described by the change of average CT values or image threshold segmentation method. However, the evolution of average CT values is insensitive to the damage, and the threshold value is always not only, which grimly depends on the researchers’ judgment. Because CT image is a gray image and different grayscale expresses different density distribution, it is tried in the paper to express the variety of material density with variety of grayscale of CT image. A description index of Rd from fractal theory is introduced in the paper to describe the variety of grayscale. Thereby, a damage variable is defined by Rd index, which can be used to study the developing process and evolving rule of concrete damage.

  Info
Periodical
Advanced Materials Research (Volumes 168-170)
Edited by
Lijuan Li
Pages
373-379
DOI
10.4028/www.scientific.net/AMR.168-170.373
Citation
C. Yi, H. G. Zhu, L. Z. Liu, "Damage Analysis for Quasi-Birttle Materials of CT Image under Uniaxial Compression", Advanced Materials Research, Vols. 168-170, pp. 373-379, 2011
Online since
December 2010
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: Sang Mook Han, Xiang Guo Wu, Sung Wook Kim, Su Tae Kang
Abstract:Direct uniaxial tension test of ultra high performance cementitious composites I shape specimens have been investigated in this paper. A...
829
Authors: Ming Xie, Shan Suo Zheng, Bin Wang, Lei Li, Wei Wang
Abstract:A stochastic damage constitutive model is proposed based on Kelvin spring-damper model and Li Jie spring stochastic damage model. The model...
921
Authors: Xiang Zheng, Xiao Yan Tong, Hao Chen, Lei Jiang Yao
Abstract:An experimental study of low-velocity impact characteristics and strength after impact was carried out on both woven fiber-reinforced resin...
226
Authors: Jian Yuan, Wen Gang Zhu, Min Chen
Chapter 3: Security and Life Cycle Engineering Design of Civil Engineering
Abstract:The failure process for an extra-long pre-stressed concrete beam under static loads was simulated based on the elastic damage theory with the...
1318
Authors: Li He, Xian Guo Ye
Chapter 7: Seismic Engineering
Abstract:Base on 8 column test data obtained under low cyclic loading test, our study group conducted a comparative study of the four categories of...
2424