International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Yi-Ming Lan a, Elisa D. Sotelino b, and Wai-Fah Chen c*

a Department of Structures and Transportation, Lin Engineering, LTD.,  Springfield, Illinois, U.S.A.
b School of Civil Engineering, PurdueUniversity, West Lafayette, Indiana, U.S.A.
c College of Engineering, University of Hawaii, Honolulu, Hawaii, U.S.A.


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ABSTRACT


Consistent tangent operators with return mapping algorithms in computational mechanics have been recognized to provide accurate and efficient integration for constitutive modeling.  Unlike other studies formulated in stress space, the present consistent tangent operator and return mapping scheme have been derived in strain space for hydrostatic-sensitive and nonlinear bounding surface plasticity, particularly the Drucker-Prager criterion with isotropic hardening rule. The developed formulation has been applied to a modified confined concrete model, and implemented through the developed finite-element program UMATconc along with other available ABAQUS options. The agreements between the present results and available experimental and numerical results demonstrate the validity of the current development.


Keywords: constitutive modeling; computational mechanics; concrete plasticity.


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ARTICLE INFORMATION




Accepted: 2002-12-28
Available Online: 2003-03-01


Cite this article:

Lan, Y.-M., Sotelino, E.D., Chen, W.-F. 2003.The strain-space consistent tangent operator and  return mapping algorithm for constitutive modeling  of confined concrete. International Journal of Applied Science and Engineering, 1, 17–29. https://doi.org/10.6703/IJASE.2003.1(1).17