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Numerical simulation of a cod end net. I: Equilibrium in a uniform flow. (English) Zbl 1060.74026

Summary: A cod-end fish net is modelled by a discrete finite network. The nonlinear elastic energy for such a structure is defined and studied. Numerical simulations of the equilibrium state are performed by minimizing the total energy. The minimization algorithm uses a general nonlinear conjugate gradient procedure.

MSC:

74G65 Energy minimization in equilibrium problems in solid mechanics
74B20 Nonlinear elasticity
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