Results 161 to 170 of about 564 (193)
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Damage characteristics of ship structures subjected to shockwaves of underwater contact explosions
Ocean Engineering, 2016The damage process of ship structures subjected to underwater contact explosions is characterized by strong nonlinearity, thus there are great challenges in solving such problems. Firstly, the full Smoothed Particle Hydrodynamics (SPH) method for the fluid and structure interaction (FSI) is established based on compressible SPH fluid dynamics and SPH ...
F.R. Ming +3 more
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Damage features of RC slabs subjected to air and underwater contact explosions
Ocean Engineering, 2018Abstract Reinforced concrete (RC) slabs are the major components for building structures and underwater engineering plants. However, blast loading, especially from contact explosion, can cause significant damage to the target structures both in air and water.
Xiaohua Zhao +5 more
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Dynamical Response Simulation of Concrete Dam Subjected to Underwater Contact Explosion Load
2009 WRI World Congress on Computer Science and Information Engineering, 2009The LS-DYNA software was employed to simulate the dynamic response of concrete dam subjected to contact explosion load. Based on the ALE (Arbitrary Lagrange-Euler) algorithm, the full coupled model, including the propagation of shock wave and the interaction between water and dam, was used.
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Ship Structure Resistance to Underwater Contact Explosion with Multi Medium Coupling Calculation
International Journal of Advancements in Computing Technology, 2012Abstract To investigate the stiffened double-layer structure of ship resistance to underwater contact explosion, ALE (Arbitrary Lagrangian-Eulerian) was adopted and reinforced double-layer structure model was established on the basis of ship bottom structure by a multi medium coupling calculation technology.
Huang Guangyan - +3 more
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Investigation on charge parameters of underwater contact explosion based on axisymmetric SPH method
Applied Mathematics and Mechanics, 2014This paper investigates the effects of charge parameters of the underwater contact explosion based on the axisymmetric smoothed particle hydrodynamics (SPH) method. The dynamic boundary particle is proposed to improve the pressure fluctuation and numerical accuracy near the symmetric axis.
Fu-ren Ming, Peng-nan Sun, A.-man Zhang
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Reloading effects on plane plates subjected to non-contact underwater explosion
Journal of Materials Processing Technology, 2008Underwater explosion damage of a plane plate restrained at its edges occurs in more than one phase. While the initial plate kick-off velocity is due to the primary shock pulse, the secondary, tertiary and the following responses are clearly due to the reloading effects.
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Physics of Fluids
This paper studies the damage characteristics of underwater explosions on typical underwater structures with array charges, using both experimental and numerical methods. A small-scale explosion experiment is conducted in a water tank to compare the damage effects of single-charge and array charge explosions under contact explosion conditions ...
Zhifan Zhang +5 more
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This paper studies the damage characteristics of underwater explosions on typical underwater structures with array charges, using both experimental and numerical methods. A small-scale explosion experiment is conducted in a water tank to compare the damage effects of single-charge and array charge explosions under contact explosion conditions ...
Zhifan Zhang +5 more
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International Journal of Modern Physics B, 2008
The response of the side shell to non-contact underwater explosion is of major concern in ship design. While extensive research is carried out on air-backed plates, relatively less attention is paid to water-backed plates. Nevertheless, the response of the water-backed plates becomes relevant when the water filled side shells are exposed to an ...
Rajendran, R., Lee, J. M.
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The response of the side shell to non-contact underwater explosion is of major concern in ship design. While extensive research is carried out on air-backed plates, relatively less attention is paid to water-backed plates. Nevertheless, the response of the water-backed plates becomes relevant when the water filled side shells are exposed to an ...
Rajendran, R., Lee, J. M.
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Advanced Materials Research, 2009
As a new type of protection design, composite armor structures have good performance in impact resistance, and have been widely used in ship structure protection. Due to its academic value and potential applicability, the dynamic characteristics of ship composite armor structures were studied in this paper.
Li Yang +3 more
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As a new type of protection design, composite armor structures have good performance in impact resistance, and have been widely used in ship structure protection. Due to its academic value and potential applicability, the dynamic characteristics of ship composite armor structures were studied in this paper.
Li Yang +3 more
openaire +1 more source