Page 136 - 《爆炸与冲击》2025年第6期
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第 45 卷 周星源，等： 反射爆炸应力波作用下动静裂纹的贯通机理 第 6 期
t=86.67 µs t=88.33 µs t=90.00 µs t=91.67 µs
10 mm 10 mm 10 mm 10 mm
t=93.33 µs t=95.00 µs t=96.67 µs t=98.33 µs
10 mm 10 mm 10 mm 10 mm
t=100.00 µs t=101.67 µs t=103.33 µs t=105.00 µs
(a) Photoelastic fringe series of the unloading wave
1.5 2.5 1.5
0.5 0.5
10 mm 10 mm
10 mm
t=88.33 µs t=95.00 µs
(b) Photoelastic fringe series of pre-existing crack tip
Secondary
crack
Pre-existing
crack
Explosive
Blast-induced
crack
(c) Cracks of specimen after explosion
图 8 爆炸裂纹与预制裂纹贯通后弹性能快速释放的光弹条纹系列图片
Fig. 8 A series of photoelastic stripes with rapid release of elastic energy
after penetration of blast-induced and prefabricated cracks
061431-11
