增材制造钛合金等效弹性张量的细观力学建模与实验研究

谭若涵, 宋永锋, 陈超, 李丹, 成庶, 李雄兵

Mesomechanical Modeling and Experimental Study of Effective Elastic Tensors in Additively Manufactured Titanium Alloys

TAN Ruohan, SONG Yongfeng, CHEN Chao, LI Dan, CHENG Shu, LI Xiongbing

表5 基于MMT模型和稀疏法以及拉伸实验测得的AM Ti-6Al-4V试块不同方向的Young's模量及其平均绝对百分比误差(MAPE)和均等系数(EC)

Table 5 γ in different directions of AM Ti-6Al-4V alloy by MMT model, SM, and tensile test, along with its average absolute percentage error (MAPE) and equalization coefficient (EC)

Sample Indicator Horizontal γ / GPa Vertical γ / GPa MAPE / % EC / % A V-MMT 107.86 124.76 0.87 99.51 R-MMT 104.16 121.66 3.80 98.06 H-MMT 106.02 123.21 2.33 98.80 V-SM 107.41 122.61 1.93 99.02 R-SM 103.74 119.48 4.86 97.53 H-SM 105.58 121.05 3.40 98.28 Tensile test 109.46 125.11 B V-MMT 115.46 132.25 2.51 98.20 R-MMT 110.61 128.23 2.98 98.42 H-MMT 111.55 129.00 2.93 98.49 V-SM 114.99 132.35 2.72 98.19 R-SM 110.58 127.82 2.83 98.45 H-SM 112.80 130.10 2.77 98.59 Tensile test 115.56 126.12