Shigen-to-sozai, Vol.116, No.2, pp.105-110.
Numerical Simulation of Bending Test of Steel-Fiber Reinforced Mortar
Seisuke OKUBO1and Katsunori FUKUI1
| 1. Depertment of Geo-system Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113 8656 |
| A non-linear rheological model which was
proposed by the authors mainly for the behavior
of a brittle material in compression is slightly
modified and extended to tensile stress field.
This constitutive equation can be applicable
to the post-failure region / behavior of
steel-fiber reinforced mortar in tensile
stress field. The one-dimensional simulation
results indicate that the stress decreases
more rapidly in the post-failure region as
length of a test piece increases. The constitutive equation is implemented to a FEM program and 4-points bending test is simulated. Calculated results of ultimate strength, absorbed energy and load-deflection curve reasonably coincide with the experimental ones. |
| KEY WORDS: Steel Fiber, Bending Test, Constitutive Equation, REM, Simulation |