5182-O铝合金屈服演化行为表征及晶体塑性模拟

尚宏春, 田中旺, 牛兰杰, 范晨阳, 张哲伟, 娄燕山

Yield Evolution Behavior Characterization and Crystal Plasticity Simulation for 5182-O Aluminum Alloy

SHANG Hongchun, TIAN Zhongwang, NIU Lanjie, FAN Chenyang, ZHANG Zhewei, LOU Yanshan

图 7 不同等效塑性应变下5182-O铝合金的3D屈服面和实验结果对比

Fig.7 Comparisons of 3D yield surfaces and experimental results of 5182-O aluminum alloys under different λ¯ (λ¯—equivalent plastic strain calculated by plastic potential, UC—uniaxial compression; EBC—equibiaxial compres-sion, EBT—equibiaxial tension, θ—loading angle) (a) λ¯ = 0.002 (b) λ¯ = 0.04