SHPB压缩试验中红砂岩的力学与能量耗散特性研究

胡健,宫凤强,贾航宇

Research on Mechanical and Energy Dissipation Characteristics of Red Sandstone in SHPB Compression Test

Jian HU,Fengqiang GONG,Hangyu JIA

表2 红砂岩试样的动态压缩试验数据

Table 2 Data of red sandstone specimens in dynamic compression test

试样编号 应变率/（s-1） 峰值应力/MPa 入射能/J 耗散能/J 反射能/J 透射能/J 冲击后试样状态 1-19 14.02 30.44 9.84 3.05 1.96 4.83 完整 1-18 25.54 61.81 26.44 7.02 5.75 13.67 完整 1-17 33.67 66.14 38.55 12.67 9.70 16.19 完整 1-16 46.74 72.64 67.26 16.10 22.85 28.31 完整 1-4 48.84 106.63 98.89 18.26 28.13 52.50 完整 1-25 65.60 151.66 157.69 31.64 34.33 91.72 完整 1-22 67.27 143.78 168.81 33.51 47.56 87.74 完整 1-24 74.38 147.12 176.45 37.03 48.71 90.71 破裂 1-23 73.80 152.83 201.09 44.30 53.56 103.24 破裂 1-6 78.39 157.19 215.64 58.94 54.93 101.78 破碎 1-8 79.51 155.29 229.14 65.85 62.38 100.91 破碎 1-26 75.94 175.85 255.27 77.79 47.30 130.18 破碎 1-21 89.66 167.34 256.36 80.51 72.23 103.62 破碎 1-20 87.74 167.60 259.18 89.45 63.24 106.48 破碎 1-13 101.94 124.30 290.31 105.52 112.42 72.38 破碎 1-27 87.31 142.98 295.48 137.39 85.34 72.75 破碎 1-7 92.82 180.35 326.60 127.14 78.53 120.93 破碎 1-9 114.53 158.88 335.57 125.13 118.73 91.71 破碎 1-11 104.75 167.16 344.20 155.52 102.31 86.38 破碎