Abstract
ABSTRACT Zhang, L., 2015. Study and application of properties equivalent algorithm for composite wind turbine blade based on strain energy method. To simplify the modeling and improve calculating efficiency of wind turbine blade, properties equivalent method of composite laminate based on strain energy method is put forward. To take representative volume element of composite as research object, basing on the two-dimension strain energy method, the equations set, which shows the relationship between equivalent stiffness matrix coefficient of composite properties and strain energy of RVE, is deduced on the three-dimension strain energy method through utilizing strain energy conservation theory and transforming of different strain energy formula. And the equation set is in accordance with the stress and strain field of RVE is the same as that of homogeneous equivalent unites under certain conditions. Then energy expression of properties equivalent stiffness matrix for composite is given. Turning the stiffnes...
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