摘要
采用反射低分辨改进最大熵三维取向分布函数法(MMEMODF)和级数展开法(简ODF),按照织构多晶体连续力学法(CMTP),遵循Konchendrfer模型,选择非二次型屈服函数来预估多晶体深冲IF钢板的塑性应变比R值。预估结果表明,MMEMODF低分辨织构计算法可以准确测算R值。
Based on the models of continues mechanics of textured polycrystals (CMTP) and Kochendorfer in which the quadric yield function form is employed, the plastic strain ratio (R-values) of polycrystalline metal (deep-drawing IF steel sheets) is calculated by the approaches of modified maximum entropy method (MMEM) of low-resolution texture analysis and harmonic method. The computed results indicate that the MMEM of low-resolution texture analysis can predict the R values accurately.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第5期555-560,共6页
Acta Metallurgica Sinica
基金
国家自然科学基金 50231030
关键词
IF钢板
织构
塑性应变比
改进最大熵ODF
IF steel sheet
texture
plastic strain ratio
modified maximum entropy method ODF
