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Movable cellular automaton
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<p>The movable cellular automaton (MCA) method is a method in <a href="/facts/Computational_mechanics/t8EAMTke">computational solid mechanics</a> based on the discrete concept. It provides advantages both of classical <a href="/facts/Cellular_automaton/6gfkjKAW">cellular automaton</a> and <a href="/facts/Discrete_element_method/NYe767oa">discrete element</a> methods. One important advantage of the MCA method is that it permits direct <a href="/facts/Computer_simulation/Re6o8vzN">simulation</a> of material fracture, including damage generation, crack propagation, fragmentation, and mass mixing. It is difficult to simulate these processes by means of <a href="/facts/Continuum_mechanics/vI7LpFDk">continuum mechanics</a> methods (For example: <a href="/facts/Finite_element_method/eUcfP1vn">finite element method</a>, <a href="/facts/Finite_difference_method/EoG81Qn9">finite difference method</a>, etc.), so some new concepts like <a href="/facts/Peridynamics/SETN0xIm">peridynamics</a> are required. <a href="/facts/Discrete_element_method/NYe767oa">Discrete element method</a> is very effective to simulate granular materials, but mutual forces among movable cellular automata provides simulating solids behavior. As the cell size of the automaton approaches zero, MCA behavior approaches classical <a href="/facts/Continuum_mechanics/vI7LpFDk">continuum mechanics</a> methods. The MCA method was developed in the group of S.G. Psakhie </p>