Research on breaking process of 15 kV pyrobreaker

Table 1. Material parameters of RDX
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Table 1. Material parameters of RDX
ρ/(g·cm⁻³) D/(cm·µs⁻¹) p_c-j/GPa A/GPa B/GPa R₁ R₂ ω E
1.63 0.839 34 581 6.8 4.1 1.0 0.35 9.0

Table 2. Material parameters of copper
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Table 2. Material parameters of copper
ρ/(g·cm⁻³) G₀/GPa A/MPa B/MPa n C m
8.96 47.7 900 292 0.31 0.025 1

Table 3. Material parameters of steel
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Table 3. Material parameters of steel
material C/(m·s⁻¹) S₁ S₂ S₃ γ₀ a
steel 4569 1.49 0 0 2.17 0.46

Table 4. Material parameters of epoxy

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Table 4. Material parameters of epoxy

parameter name	value	parameter name	value	parameter name	value	parameter name	value
E₁₁	45.5 GPa	X_c	680 MPa	υ₃₁	0.206	m₁	4.0
E₂₂	12.5 GPa	Y_c	250 MPa	υ₂₃	0.206	m₂	4.0
E₃₃	12.5 GPa	Z_t	82 MPa	A_s	2.5	m₃	4.0
G₁₂	1.38 GPa	Z_c	242 MPa	B_s	0.9	m₄	4.0
G₂₃	1.38 GPa	S₁₂	75 MPa	C_s	0.37	m₅	4.0
G₃₁	1.38 GPa	S₂₃	58 MPa	A_m	1.85	m₆	4.0
X_t	1.28 GPa	S₃₁	58 MPa	B_m	0.5	m₇	4.0
Y_t	90 MPa	υ₁₂	0.25	C_m	1.3	S_c	1.2

Table 5. Comparison of test pressure and numerical simulation
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Table 5. Comparison of test pressure and numerical simulation
No. simulation pressure/MPa test pressure/MPa error/%
1 210 218.41 3.85
2 152.5 155.42 1.88

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Jifei Ye, Hua Li, Zhenhan Li, Zhiquan Song, Peng Fu. Research on breaking process of 15 kV pyrobreaker[J]. High Power Laser and Particle Beams, 2024, 36(11): 115020

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