3D打印TPU材料的力学性能及模型参数研究

谢博伟,金莫辉,杨洲,段洁利,屈明宇,李锦辉

Research on mechanical properties and model parameters of 3D printed TPU material

Bowei XIE,Mohui JIN,Zhou YANG,Jieli DUAN,Mingyu QU,Jinhui LI

表4 TPU材料本构模型的材料参数 (Pa)

Table 4 Material parameters of TPU material constitutive models

模型 材料常数① 83A60% 83A80% 83A100% 87A60% 87A80% 87A100% 95A60% 95A80% 95A100% Mooney-Rivlin C1/105 4.15 5.01 5.70 5.08 6.88 7.17 11.80 13.20 14.30 C2/106 1.30 0.97 1.40 1.05 1.33 1.45 1.85 2.33 3.93 Yeoh C10/106 0.88 0.95 1.06 0.86 1.16 1.38 2.10 2.36 2.99 C20/103 -1.72 -1.85 -1.51 -0.94 -1.39 -3.40 -12.80 -11.60 -9.67 C30 3.28 3.49 2.02 1.18 1.98 6.58 71.14 61.67 26.11 Ogden μ1/105 3.95 5.59 5.91 5.62 6.38 6.92 3.03 11.90 12.90 μ1/105 -1.36 -1.10 -1.15 -2.11 -1.25 -5.61 -12.50 -10.10 -10.10 μ1/106 2.45 2.60 2.71 2.65 2.73 3.51 5.86 6.96 8.66 α1 2.92 3.18 3.19 3.21 3.25 3.53 3.73 3.56 3.54 α2 3.29 3.58 3.61 3.60 3.64 3.61 3.61 3.49 3.48 α3 1.52 1.26 1.35 1.31 1.39 1.95 1.63 1.57 1.58 Arruda-Boyce μ/106 1.41 1.42 1.73 1.47 2.08 2.16 3.45 4.09 4.75 λm/104 4.91 3.83 5.07 5.38 5.89 5.76 2.79 2.74 5.12