Numerical Modeling on Explosion Protection of Sintered Fiber Network Material

doi:10.12382/bgxb.2025.0402

Abstract

Abstract:

As a novel explosion protection material, sintered fiber network materials exhibit transversely isotropic mechanical properties, posing challenges for engineering design and application. To achieve accurate numerical simulation of sintered fiber network materials, a transversely isotropic phenomenological dynamic constitutive model was established, and a user subroutine was developed to implement the constitutive model algorithms. Constitutive parameters of the sintered fiber network were obtained by fitting experimental stress-strain curves under different loading directions. To validate the constitutive model and parameters, explosion simulation loading tests and corresponding numerical simulations were conducted, revealing the material’s shock pressure attenuation characteristics. Results demonstrate that under varying shock loading directions, the numerical simulations show good agreement with experimental results in terms of shock pressure attenuation and specimen compression deformation. The fiber network material reduces shock pressure by up to 57.4%. The established constitutive model and parameters effectively capture the mechanical behavior of the fiber network material, providing a critical simulation tool for its engineering applications.

Key words: explosion protection, constitutive model, shock test, fiber network materials, numerical simulation

CLC Number:

O383

LI Yuan, WANG Tianchi, HOU Bing, SUO Tao, DOU Qingbo. Numerical Modeling on Explosion Protection of Sintered Fiber Network Material[J]. Acta Armamentarii, 2025, 46(10): 250402-.

Figures/Tables 24

References 25

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相对密度	E₁/ MPa	E₃/ MPa	ν₁₂	ν₃	G₄/ MPa	G₅/ MPa
0.10	3210	1600	0.11	-0.00469	2331	37.6
0.15	6190	3200	0.15	-0.00867	3496.5	102.3
0.20	10710	6400	0.21	-0.01201	4650	201

相对密度	E₁/ MPa	E₃/ MPa	ν₁₂	ν₃	G₄/ MPa	G₅/ MPa
0.10	3210	1600	0.11	-0.00469	2331	37.6
0.15	6190	3200	0.15	-0.00867	3496.5	102.3
0.20	10710	6400	0.21	-0.01201	4650	201

相对密度	B	C	D	E	F	t₁₁	t₁₂	t₁₃	t₁₄	t₁₅	t₃₁	t₃₂
0.10	0.07083	0.03322	0	0.04456	0.39877	-0.04394	-0.05765	0.01484	-1.16×10^-3	3.12×10^-5	10.9558	-31.1684
0.15	0.08316	0.04555	0	0.08495	0.54483	-0.03139	-0.07441	0.02507	-2.61×10^-3	9.46×10^-5	9.4135	-4.0578
0.20	0.10783	0.06988	0	0.13636	0.86538	-0.02528	-0.10213	0.05945	-9.67×10^-3	5.33×10^-4	9.0598	-13.3983
相对密度	t₃₃	t₃₄	t₃₅	t₄₁	t₄₂	t₅₁	t₅₂	${Y}_{3}^{0}$	m₁	m₃	m₄	m₅
0.10	127.5877	-135.7743	71.5584	0.1542	0.4055	0.8918	0.8136	0.221	0.069	0.093	1.2	1.2
0.15	50.6525	-46.3774	39.6585	0.2062	0.3778	1.1305	0.7564	0.632	0.037	0.073	0.2	0.2
0.20	86.1957	-91.2777	47.6583	0.2486	0.3923	1.6195	0.7663	1.35	0.02	0.058	0.2	0.2

相对密度	B	C	D	E	F	t₁₁	t₁₂	t₁₃	t₁₄	t₁₅	t₃₁	t₃₂
0.10	0.07083	0.03322	0	0.04456	0.39877	-0.04394	-0.05765	0.01484	-1.16×10^-3	3.12×10^-5	10.9558	-31.1684
0.15	0.08316	0.04555	0	0.08495	0.54483	-0.03139	-0.07441	0.02507	-2.61×10^-3	9.46×10^-5	9.4135	-4.0578
0.20	0.10783	0.06988	0	0.13636	0.86538	-0.02528	-0.10213	0.05945	-9.67×10^-3	5.33×10^-4	9.0598	-13.3983
相对密度	t₃₃	t₃₄	t₃₅	t₄₁	t₄₂	t₅₁	t₅₂	${Y}_{3}^{0}$	m₁	m₃	m₄	m₅
0.10	127.5877	-135.7743	71.5584	0.1542	0.4055	0.8918	0.8136	0.221	0.069	0.093	1.2	1.2
0.15	50.6525	-46.3774	39.6585	0.2062	0.3778	1.1305	0.7564	0.632	0.037	0.073	0.2	0.2
0.20	86.1957	-91.2777	47.6583	0.2486	0.3923	1.6195	0.7663	1.35	0.02	0.058	0.2	0.2

面内方向			面外方向
编号	相对密度	厚度/mm	编号	相对密度	厚度/mm
IL	0.10	27	OL	0.10	27
IM	0.15	18	OM	0.15	18
IH	0.20	13.5	OH	0.20	13.5