Assessment and Experimental Study of Damage Power of Anti-Submarine Warhead to the Pressure Hull Structure

doi:10.12382/bgxb.2021.0871

Abstract

Abstract:

Considering the characteristics of different anti-submarine (torpedo/depth charge) warheads, including multiple effects of underwater explosions, and multiple styles of target structures, the normalized comprehensive damage power characterization and assessment of warheads were studied. Based on the damage of the most representative hull structure (pressure hull) and comprehensively considering the effects of large deformation, tearing, and perforation, a method to quantitatively characterize and evaluate the power of the warhead through a comprehensive damage power index was proposed. A test target simulating the damaging effect of single-hull, and the double-hull was designed, and three model warheads were tested. The comprehensive power of the three warheads against the two types of structures was obtained. The results showed that: the proposed comprehensive power assessment method has scientific rationality and engineering practicability; it can quantitatively compare and analyze the differences in the damage power of the same warhead to different hull structures and the damage power of different warheads to the same hull structure; under the same conditions, the blast warhead and the shaped charge warhead had relatively greater damage to the single-hull target and double-hulled targets; implosion warheads had better damage power to both types of targets; for different targets, the damage power of the blast warhead, the implosion warhead, and the implosion warhead dropped by more than 90%, nearly 80%, and less than 20%, respectively.

Key words: anti-submarine warhead, lethality assessment, power index

WANG Shushan, GUI Qiuyang, LU Xi, JIA Xiyu, GAO Yuan, LIANG Ce. Assessment and Experimental Study of Damage Power of Anti-Submarine Warhead to the Pressure Hull Structure[J]. Acta Armamentarii, 2023, 44(4): 919-928.

Figures/Tables 19

Table 1 Damage levels based on the comprehensive DPI

综合毁伤威力指数	毁伤等级
ε_Ⅰ≥1	Ⅰ级
ε_Ⅰ<1∧ε_Ⅱ≥1	Ⅱ级
ε_Ⅱ<1∧ε_Ⅲ≥1	Ⅲ级

Fig.1 Flow chart of quantitative assessment of DPI

Fig.2 Schematic and photo of the test target

Fig.3 Water-cylinder for double-hull simulation

Fig.4 Schematic of the model warheads

Fig.5 Layout andpicture of the offshore test system

Table 2 Test conditions

工况	战斗部类型	弹靶间介质	毁伤效应靶类型
D-1	爆破	空气	模拟单层壳体
D-2	聚能
D-3	聚爆
S-1	爆破	空气+水	模拟双层壳体
S-2	聚能
S-3	聚爆

Fig.6 Results from blast warhead against single-hull target and 3D scan picture

Fig.7 Results from shaped charge warhead against single-hull target and perforation hole

Fig.8 Results from implosion warhead against single-hull target

Fig.9 Results from the blast warhead against double-hull target

Fig.10 Results from shaped charge warhead against double-hull target and perforation hole

Fig.11 Results from implosion warhead against double-hull target and perforation hole

Table 3 Measured values of damage effect parameters

工况	等面积圆直径/mm	变形挠度/mm
D-1	833	512
D-2	81	368
D-3	957	549
S-1	0	304
S-2	73	284
S-3	157	318

Table 4 Test target damage levels and thresholds

毁伤效应参数类型	毁伤等级	毁伤阈值/mm
	Ⅰ	ω≥430
ω	Ⅱ	430>ω≥215
	Ⅲ	215>ω≥132
	Ⅰ	ϕ≥97
ϕ	Ⅱ	97>ϕ≥62
	Ⅲ	62>ϕ≥23

Table 5 DPI of the model warheads against different targets

毁伤等级	战斗部类型	$ε s i$	$ε d i$	$ε d i$ / $ε s i$
	爆破	9.61	0.76	0.08
Ⅰ	聚能	1.74	1.44	0.83
	聚爆	10.94	2.37	0.22
	爆破	16.45	1.52	0.09
Ⅱ	聚能	3.2	2.63	0.82
	聚爆	18.69	4.21	0.23
	爆破	46.78	3.04	0.06
Ⅲ	聚能	7.76	6.49	0.84
	聚爆	53.33	11.03	0.21

Table 5 DPI of the model warheads against different targets

毁伤等级	战斗部类型	$ε s i$	$ε d i$	$ε d i$ / $ε s i$
	爆破	9.61	0.76	0.08
Ⅰ	聚能	1.74	1.44	0.83
	聚爆	10.94	2.37	0.22
	爆破	16.45	1.52	0.09
Ⅱ	聚能	3.2	2.63	0.82
	聚爆	18.69	4.21	0.23
	爆破	46.78	3.04	0.06
Ⅲ	聚能	7.76	6.49	0.84
	聚爆	53.33	11.03	0.21

Fig.12 DPI of different warheads against single-hull targets

Fig.13 DPI of different warheads against double-hull targets

Fig.14 DPI ratio ε d i/ ε s i of the warhead against different targets

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