skip to main content

Title: In situ compressive damage of cement paste characterized by lab source X-ray computer tomography

This paper aims at illustrating the potential of lab source X-ray CT for studying the damage behavior of cement based materials through in situ load experiments. This approach permits quantifying the microstructure prior and during loading. The load damage is separated from the specimen deformation using an image interpolation method. A quantitative relationship between external load and internal specimen damage is analyzed using the statistical information of gray scale values of the CT data. Local damage degrees are defined on 3D subset, and the 3D spatial distribution of damage information is clarified in this research. - Highlights: • On line damage is characterized by lab source X-ray CT. • Loading damage is separated with the specimen deformation. • Local damage is analyzed using gray scale values of the CT data. • 3D spatial distribution of the local damage information is clarified.
Authors:
 [1] ;  [2] ;  [3]
  1. Jiangsu Key Laboratory of Construction Materials, Nanjing 211189 (China)
  2. (China)
  3. School of Materials Science and Engineering, Southeast University, Nanjing 211189 (China)
Publication Date:
OSTI Identifier:
22285064
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 82; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CEMENTS; COMPUTERIZED TOMOGRAPHY; DEFORMATION; MICROSTRUCTURE; SPATIAL DISTRIBUTION; X RADIATION