为了研究抗拉强度对钢板抗弹性能的影响,利用12.7mm穿甲燃烧弹对18mm厚不同抗拉强度的40CrNi2Mo钢板进行抗弹性能测试.观察不同弹速下钢板出现的损伤形貌,弹坑周围裂纹和绝热剪切带的形成位置和数量,评定背面强度极限.分析不同抗拉强度钢板的穿甲机理.结果表明:抗弹性能随着抗拉强度的提高,呈现非单调变化的趋势;抗拉强度在1270MPa以下,钢板出现塑性扩孔破坏,弹坑周围基本不形成绝热剪切带与裂纹;抗拉强度在1270MPa至1700MPa之间,由于绝热剪切带的形成与扩展,钢板损伤形式由塑性扩孔向冲塞破坏转变;抗拉强度超过1700MPa,由于板内裂纹的形成与扩展,钢板出现崩落.
参考文献
| [1] | Marvin E.Backmank;Werner Goldsmith .The mechanics of penetration of projectiles into targets[J].International Journal of Engineering Science,1978,16(01):1-99. |
| [2] | Woodward R L .The interrelation of failure modes observed in the penetration of metallic targets[J].International Journal of Impact Engineering,1984,2(02):121-129. |
| [3] | Sangoy L;Meunier Y;Pont G .Steels for ballistic protection[J].ISRAEL JOURNAL OF TECHNOLOGY,1988,24:319-326. |
| [4] | Manganello S J;Abbott K H .Metallurgical factors affecting the ballistic behavior of steel targets[J].Journal of Materials JMLSA,1972,7(02):231-239. |
| [5] | 董瀚;李桂芬;陈南平 .高强度装甲钢的抗弹性能研究[J].钢铁,1996,31(zk):67-71. |
| [6] | Dikshit S N;Kutumbarao V V;Sundararajan G .The influence of plate hardness on the ballistic penetration of thick steel plates[J].International Journal of Impact Engineering,1995,16(02):293-320. |
| [7] | Rawson J D W;Dawson D I.Ingot casting by electroslag remelting[A].Portsmouth,New Hampshire,USA,1972 |
| [8] | Joseph Prifti;Michael Castro;Richard Squillacioti et al.Improved rolled homogeneous armor (IRHA) steel through higher hardness[ARL-TR-1374][R].,1997. |
| [9] | John H.Beatty;Morris Azin.Correlation of ballistic performance to shear instability in high strength steels[A].Orlando,Florida,1992 |
| [10] | ASM Metals hand book[M].,1978:461. |
| [11] | Bandyopadhyay N .The micro-mechanisms of tempered martensite embitterment in 4340 -type steels[J].Metallurgical and Materials Transactions,1983,14A:1313-1325. |
| [12] | Forrestal M J;Luk V K .Dynamic spherical cavity-expansion in a compressible elasticplastic solid[J].Journal of Applied Mechanics Transactions of the ASME,1988,55:275-279. |
| [13] | Luk V K;Forrestal M J;Amos D E .Dynamics spherical cavity expansion of strain-hardening materials[J].Journal of Applied Mechanics Transactions of the ASME,1991,58:1-6. |
| [14] | Corbett G G;Reid S R;Johnson W .Impact loading of plates and shells by free-flying projectiles:a review[J].International Journal of Impact Engineering,1996,18(02):141-230. |
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