CAJ | 학술논문

基于数字图像技术,获得非均匀复合材料的真实截面图像,以移动窗口方法依次选取截面中局部区域作为细观力学计算的单个胞元,结合改进的FVDAM方法获得复合材料的局部性能场,最后将得到的材料性能场输入有限元分析模型,求得复合材料在宏观载荷作用下的局部响应,为分析复合材料结构由于局部行为导致的失效提供了新的思路.
기우수자도상기술,획득비균균복합재료적진실절면도상,이이동창구방법의차선취절면중국부구역작위세관역학계산적단개포원,결합개진적FVDAM방법획득복합재료적국부성능장,최후장득도적재료성능장수입유한원분석모형,구득복합재료재굉관재하작용하적국부향응,위분석복합재료결구유우국부행위도치적실효제공료신적사로.
Based on digital image technique, true sectional image of heterogeneous composite materials was ob-tained. By selecting local region of the section as individual cell for micromechanics characterization, local property field of material was acquired with the use of moving-window technique in sequence combined with improved FVDAM (finite volume direct averaging method) ,then local property field is used in FEM ,loal stress is estimated in condition of macro-load,which presents a new way of thinking in analyzing failure of composite due to local behavior.