Xi Daoying， Wang Shaogang， Liu Xiaoyan， Wang Chunlei
(Department of Earth and Space Science, University of Science and Technology of China；Advanced Centre for Earth Science and Astronomy，University of Science and Technology of China，The Third World Academy of Science， Hefei 230026 China)
Abstract：The uniaxial cyclical load experiment is conducted. The - hysteresis curve and elastic responses，such as Young′s modulus, Poisson’s ratio, attenuation，elastic wave velocity are obtained when load is below yield-point，and the visco-plastic responses are also gained when load is beyond yield-point.
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2002, Vol. 21 
