Research Article
Experimental Study and Damage Effect Analysis of Concrete Structures under the Combined Loadings of Penetration and Explosion
Table 2
Experimental results of penetration-explosion joint damage to concrete targets.
| | No. | Target type | Charge quality (g) | Charge volume () | Buried depth (m) | Charge aspect ratio | Results | | Damage depth (m) | Blast side damage volume () | States of rear side |
| | 1 | C30 | 31.4 | 2.5132 × 10−5 | 0.275 | 4 : 1 | 0.302 | 0.01820 | Crack | | 2 | 39.25 | 3.1416 × 10−5 | 0.265 | 5 : 1 | 0.298 | 0.01507 | Crack | | 3 | 47.9 | 3.7699 × 10−5 | 0.278 | 6 : 1 | 0.316 | 0.01203 | Spallation | | 4 | 39.25 | 3.1416 × 10−5 | 0.231 | 5 : 1 | 0.262 | 0.01198 | No change | | 5 | 39.25 | 3.1416 × 10−5 | 0.226 | 5 : 1 | 0.255 | 0.01481 | No change | | 6 | 39.25 | 3.1416 × 10−5 | 0.221 | 5 : 1 | 0.246 | 0.01041 | No change | | 7 | 39.25 | 3.1416 × 10−5 | 0.211 | 5 : 1 | 0.231 | 0.01004 | No change |
| | 8 | C40 | 47.9 | 3.7699 × 10−5 | 0.284 | 6 : 1 | 0.320 | 0.01473 | Crack | | 9 | 39.25 | 3.1416 × 10−5 | 0.253 | 5 : 1 | 0.278 | 0.01037 | Crack | | 10 | 39.25 | 3.1416 × 10−5 | 0.234 | 5 : 1 | 0.255 | 0.008995 | No change | | 11 | 39.25 | 3.1416 × 10−5 | 0.225 | 5 : 1 | 0.241 | 0.01199 | No change | | 12 | 31.4 | 2.5132 × 10−5 | 0.185 | 4 : 1 | 0.198 | 0.009249 | No change |
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