非晶合金理想裂纹预制方法及其在小试样$K_{\rm Ic}$测试中的应用 1)
谢怡玲,刘泽(
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A GENERAL METHOD TO INTRODUCE PRE-CRACK IN BULK METALLIC GLASSES FOR PLANE STRAIN FRACTURE TOUGHNESS TEST 1)
Xie Yiling,Liu Ze()
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图 4. 缺口尖端曲率半径对剪切带分布的影响. (a)$\sim$(b)曲率半径为130 $\mu$m、厚度为3.4 mm的断裂试样在断裂前后的裂尖区域表征;(c)$\sim$(d)典型含理想裂纹、厚度为2.7 mm的试样在断裂前后的裂尖区域表征
Fig. 4. Effect of notch radius on the distribution of shear bands after fracture. (a)$\sim$(b) Typical sample with notch radius of 130 $\mu$m and sample thickness of 3.4 mm. (c)$\sim$(d) Typical pre-crack sample by thermoplastic compression, the thickness of the sample is 2.7 mm
