積層複合材料の曲げたわみに基づく損傷同定のための損傷のモデル化

概要

論文の詳細を見る
By modeling a damage portion of a laminated composite, strategic way of numerical analysis how to identify the characteristics of damage from bending deflection has been shown. The model is developed by extending the concept of equivalent inclusion. The damage is represented effectively in the formulation by equivalent additional force in view of inhomogeneity of bending stiffness due to existing damage. Deflection of the laminated composite plate with damage can be reproduced by the additional force based on the classical plate theory. Therefore the identification of damage is numerically performed by determining the additional force from given bending deflection of the plate, inversely. When the additional force is assumed as a point force, position and intensity of the force correspond to location and level of the damage, respectively. Identification process of the damage characterization is illustrated with representative numerical results obtained by finite element analysis for cross-play laminated composites.
一般社団法人日本機械学会の論文
1999-06-25