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Analysis and Simulation of Evolution Induced Catastrophe |
BAI Yilong1;XIA Mengfen1,2;KE Fujiu1,3;LU Chunsheng1;LING Zhong1 |
1Laboratory for Nonlinear Mechanics of Continuous Media, Institute of Mechanics, Academia Sinica, Beijing 100080
2Department of Physics, Peking University, Beijing 100871
3Department of Applied Mathematics and Physics, Beijing University of Aeronautics and Astronautics, Beijing 100083
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Cite this article: |
BAI Yilong, XIA Mengfen, KE Fujiu et al 1993 Chin. Phys. Lett. 10 155-158 |
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Abstract A model of evolution induced catastrophe (EIC) characterized by a nonlocal interaction is proposed. The general feature of the model is its two bias states: explosively catastrophic and globally stable, both consisting in a cascade of locally unstable states. A one-dimensional analysis reveals a transition region from globally stable to catastrophe. A two-dimensional simulation gives a thin fractal fracture profile similar to that observed and also a possible spectrum of fracture fractal. All these are different from percolation. Hence, the EIC model may represent a prototype of natural processes.
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Keywords:
62.20.Mk
64.60.Ak
64.60.Ht
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Published: 01 March 1993
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