Stress-Strain Relations of High-Strength Concrete under Triaxial Compression
Publication: Journal of Materials in Civil Engineering
Volume 19, Issue 3
Abstract
Three types of stress-strain relations of high-strength concrete under triaxial compression, axial stress–axial and lateral strain, octahedral normal stress–volume change, and octahedral shear stress-strain curves, are studied in this paper. The influence of different load paths is also addressed. The Saenz equation is found to be appropriate to represent the octahedral shear stress-strain relation of high-strength concrete under low confining pressures. A relation between peak octahedral shear stress and peak octahedral shear strain is developed, which can be used to define the peak point on the curve from the peak stresses obtained from the stress failure surface. The high-strength concrete is found to experience degradation in elastic and shear modulus in cyclic loading under triaxial compression.
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Acknowledgments
The writers acknowledge NSF Grant No. NSFCMS 9413725, Material Testing System ( MTS 815) for Research and Development of High Performance Cementitious Composites, provided to New Jersey Institute of Technology. This study would not have been possible without the availability of the machine funded by the abovementioned grant.
References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 19 • Issue 3 • March 2007
Pages: 261 - 268
Copyright
© 2007 ASCE.
History
Received: Jul 6, 2005
Accepted: Feb 9, 2006
Published online: Mar 1, 2007
Published in print: Mar 2007
Notes
Note. Associate Editor: Carl Liu
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