Piezoelastic 1D model for bi-material structure applicable for wind turbine blades

该项目的目的是获得描述双材料结构的压电弹性响应的常微分方程组，其中考虑了以下关键因素：(A)结构的压电弹性第一板中的转移裂纹；(B)界面分层和弹脆脱粘长度；(C)给定的特殊边界条件。这项工作的创新之处在于理论和应用力学领域：(A)将建立一个新的微分方程组，用于分析双材料结构在静、动态时间简谐载荷作用下的压电弹性行为；(B)将应用于具有规定几何和力学性能的风力机叶片。将对结构响应进行参数分析，包括几何、机械和电气特性。

The aim of the project is to obtain the system of ordinary differential equations describing the piezoelastic response of a bi-material structure taking into consideration the following key factors: (a) a transfer crack in a piezoelastic first plate of the structure; (b) an interface delamination and an elastic-brittle debond length; (c) given special boundary conditions. The novelty of the proposed work lies in the fields of theoretical and applied mechanics: (a) a new system of differential equations will be developed for the analysis of the piezoelastic behaviour of the bi-material structure under static and dynamic time harmonic loading; (b) the application to the wind turbine blades with prescribed geometrical and mechanical properties will be done. A parametric analysis of the structure response including geometry, mechanical and electrical characteristics will be done.