Triaxial Test and Numerical Analysis on the Fiber Reinforced Laterite Clay

Abstract:

Triaxial compressive tests were performed on laterite clay(LC) reinforced with different fiber contents and lengths. It was observed that the curves of stress-strain have a segmented characteristic at the critical strain. The stress-strain curves of fiber reinforced laterite clay(FRLC) were expressed by the combination of hyperbola and straight lines. The parameters of stress-strain curves were obtained by linear and nonlinear fitting method with experimental results. A three-dimensional calculation model of triaxial tests was developed on the basis of ABAQUS software. To express the stress-strain relationship of hyperbola-straight lines, user’s subroutine was established through secondary development. Based on the test conditions, a large number of calculations were conducted. There is a good agreement between the results of numerical calculations and tests. It shows that the stress-strain relationship of FRLC can be described by the hyperbola-straight line combination model.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 1219-1224
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.1219
• Online since: January 2013
• Authors: Jin Li Zhang, Man Yuan, Zheng Guo Jiang, Qing Yang
• Keywords: Laterite Clay, Model of Hyperbola-Straight Line, Polypropylene Fiber, Triaxial Test

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