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Journal articles on the topic 'Underwater explosions'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 July 2024

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1

Yu, Jun, Hai-tao Li, Zhen-xin Sheng, Yi Hao, and Jian-hu Liu. "Numerical research on the cavitation effect induced by underwater multi-point explosion near free surface." AIP Advances 13, no. 1 (January 1, 2023): 015021. http://dx.doi.org/10.1063/5.0136546.

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In this study, the cavitation effect induced by two charges in underwater explosions near free surfaces is numerical researched by two dimensional compressible multiphase fluids based on a four-equation system with a phase transition model. The occurrence of the generation, development, and collapse of cavitation in two-charge underwater explosions near free surfaces can be captured directly. The detailed density, pressure, and vapor volume fraction contours during the interaction process are obtained and can better reveal the characteristic underlying the cavitation, free surface, and explosi

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2

Zhang, Zhifan, Hailong Li, Longkan Wang, Guiyong Zhang, and Zhi Zong. "Formation of Shaped Charge Projectile in Air and Water." Materials 15, no. 21 (November 7, 2022): 7848. http://dx.doi.org/10.3390/ma15217848.

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With the improvement of the antiknock performance of warships, shaped charge warheads have been focused on and widely used to design underwater weapons. In order to cause efficient damage to warships, it is of great significance to study the formation of shaped charge projectiles in air and water. This paper uses Euler governing equations to establish numerical models of shaped charges subjected to air and underwater explosions. The formation and the movement of Explosively Formed Projectiles (EFPs) in different media for three cases: air explosion and underwater explosions with and without ai

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3

Miralles, Ramón, Guillermo Lara, Alicia Carrión, and Manuel Bou-Cabo. "Assessment of Arrow-of-Time Metrics for the Characterization of Underwater Explosions." Sensors 21, no. 17 (September 4, 2021): 5952. http://dx.doi.org/10.3390/s21175952.

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Anthropogenic impulsive sound sources with high intensity are a threat to marine life and it is crucial to keep them under control to preserve the biodiversity of marine ecosystems. Underwater explosions are one of the representatives of these impulsive sound sources, and existing detection techniques are generally based on monitoring the pressure level as well as some frequency-related features. In this paper, we propose a complementary approach to the underwater explosion detection problem through assessing the arrow of time. The arrow of time of the pressure waves coming from underwater exp

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4

Kiciński, Radosław, and Bogdan Szturomski. "Pressure Wave Caused by Trinitrotoluene (TNT) Underwater Explosion—Short Review." Applied Sciences 10, no. 10 (May 15, 2020): 3433. http://dx.doi.org/10.3390/app10103433.

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The development of computational techniques and computer hardware has an impact the analysis of short-term (fast-changing) processes, such as the impact of a non-contact underwater explosion pressure waves. A theory of underwater explosions, gas bubble formation and pressure waves are presented. The course of the pressure wave in time, and its propagation in the acoustic medium are presented. The study presents empirical descriptions of non-contact pressure explosion waves. We propose to use them in simulations of ship hull strength and other objects immersed in liquids that are exposed to the

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5

Wang, Yan, Xiaoming Wang, Zhehan Liu, Wei Tang, Jian Li, De Nan, and Shiya Zou. "Estimation on the Underwater Explosion Equivalent Based on the Threshold Monitoring Technique." Shock and Vibration 2021 (October 18, 2021): 1–8. http://dx.doi.org/10.1155/2021/1933744.

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Underwater nuclear explosions can be monitored in near real-time by the hydroacoustic network of the International Monitoring System (IMS) established by the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which could also be used to monitor underground and atmospheric nuclear explosions. The equivalent is an important parameter for the nuclear explosions’ monitoring. The traditional equivalent estimation method is to calculate the bubble pulsation period, which is difficult to obtain satisfactory results under the current conditions. In this paper, based on the passive sonar equation and the co

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6

Itoh, S., Z. Liu, and Y. Nadamitsu. "An Investigation on the Properties of Underwater Shock Waves Generated in Underwater Explosions of High Explosives." Journal of Pressure Vessel Technology 119, no. 4 (November 1, 1997): 498–502. http://dx.doi.org/10.1115/1.2842336.

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A cylinder expansion test for high explosives was carried out to determine JWL parameters. Using the JWL parameters, we carried out numerical simulations of the underwater shock waves generated by the underwater explosion of the high explosives. Our results showed that the behavior of the underwater shock waves at the vicinity of the explosives differs greatly from that far from the explosives. Especially, the strength of the underwater shock wave nearby the explosive rapidly decreases due to the effect of the expansion of the gas products.

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7

Chen, Wenge, Lele Cheng, Chao Yu, Haijun Wu, Fenglei Hang, and Ziqi Wu. "Experimental Study on the Cumulative Damage of Shipboard Structure Subject to Near-field Underwater Explosions." Journal of Physics: Conference Series 2419, no. 1 (January 1, 2023): 012003. http://dx.doi.org/10.1088/1742-6596/2419/1/012003.

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Abstract To explore the cumulative damage law of near-field underwater explosions on the side of the ship structure, the multi-cabin model of the shipboard local structure is designed and applied to close-in underwater explosion experiments with different explosive masses and model conditions. The pressure load of the explosion shock wave near the water surface is obtained and analyzed. The damage results, such as the damage pattern of the model and the damage range of cabins, are acquired. The comprehensive comparison shows that: the secondary explosion on the side has a significant cumulativ

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8

Yu, Jun, Xianpi Zhang, Yanjie Zhao, Lunping Zhang, Jiping Chen, and Yuanqing Xu. "Study on the Influence of a Rigid Wall on Cavitation in Underwater Explosions Near the Free Surface." Applied Sciences 14, no. 5 (February 23, 2024): 1822. http://dx.doi.org/10.3390/app14051822.

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A two-fluid, phase transition-based multiphase flow model is employed to simulate the dynamics of phase transition between liquid and vapor phases during shock wave and rarefaction wave propagation in underwater explosions. The aim is to understand the influence of a rigid wall on the cavitation evolution process and the cavitation collapse load, considering various charge quantities and water depths. The evolution of crucial physical qualities, such as the density, pressure, and the cavitation domain, within the flow field are analyzed and summarized. The presence of a rigid wall is found to

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9

Yan, Qiushi, Chen Liu, Jun Wu, Jun Wu, and Tieshuan Zhuang. "Experimental and Numerical Investigation of Reinforced Concrete Pile Subjected to Near-Field Non-Contact Underwater Explosion." International Journal of Structural Stability and Dynamics 20, no. 06 (May 30, 2020): 2040003. http://dx.doi.org/10.1142/s0219455420400039.

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High-pile wharf is an important port structure and may suffer from accidental explosions or terrorist bombing attack during the service life. The reinforced concrete (RC) pile is one of the popular vertical load-bearing piles of high-pile wharf structure. As a main load-bearing member of the high-pile wharf structure, the damage of RC pile due to underwater explosive may cause subsequently progressive collapse of the whole structure. In this paper, the dynamic response and failure mode of RC pile in high-pile wharf structure under the near-field non-contact underwater explosion are investigate

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10

Su, Hao-Chen, Jun Wang, Yun-Long Liu, and Yong-Qiang Gao. "Experimental Study on the Underwater Explosion Bubble Near deformable boundary." Journal of Physics: Conference Series 2660, no. 1 (December 1, 2023): 012012. http://dx.doi.org/10.1088/1742-6596/2660/1/012012.

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Abstract Studying near-field underwater explosions is important for the research of submersible and underwater explosive weapons. In this study, we conducted experiments to investigate the coupling of near-field underwater explosion bubbles with titanium alloy plates and steel plates. Our findings show that the boundary of a titanium alloy plate causes the first pulsation period of a bubble to be longer than in the free field, while the boundary of a steel plate causes the first pulsation period of a bubble to be shorter than in the free field. Furthermore, we simulated the process of the expl

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11

Gel'fand, B. E., and K. Takayama. "Similarity Criteria for Underwater Explosions." Combustion, Explosion, and Shock Waves 40, no. 2 (March 2004): 214–18. http://dx.doi.org/10.1023/b:cesw.0000020144.55275.df.

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12

Molyneaux, T. C. K., Long-Yuan Li, and N. Firth. "Numerical simulation of underwater explosions." Computers & Fluids 23, no. 7 (September 1994): 903–11. http://dx.doi.org/10.1016/0045-7930(94)90060-4.

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13

Dall'Osto, David R. "The Sound from Underwater Explosions." Acoustics Today 19, no. 1 (2023): 12. http://dx.doi.org/10.1121/at.2023.19.1.12.

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14

Seger, Kerri D., Shyam Madhusudhana, Holger Klinck, Kevin D. Heaney, and John Boyle. "Using before-after control-impact methodology to quantify effects of full ship shock trial explosions on marine fauna." Journal of the Acoustical Society of America 155, no. 3_Supplement (March 1, 2024): A133. http://dx.doi.org/10.1121/10.0027061.

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In the summer of 2021, the US Navy conducted a Full Ship Shock Trial (FSST) for the USS Gerald R. Ford. This involved three large underwater explosions off the coast of Florida, USA. We collected underwater acoustic recordings, using low-sensitivity recorders, for the Naval Undersea Warfare Center to validate their underwater acoustic propagation models. We also deployed SoundTraps on the shallow moorings to collect additional acoustical biologics data in hopes of measuring any acoustic responses of marine fauna to the explosions. The acoustic energy of the explosions did not propagate up the

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15

Dulnev, A. I. "Underwater explosion in open water: gas bubble parameters." Transactions of the Krylov State Research Centre 1, no. 403 (February 15, 2023): 31–47. http://dx.doi.org/10.24937/2542-2324-2023-1-403-31-47.

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Object and purpose of research. This paper discusses underwater explosion. The purpose of the study was to justify the mathematical model enabling the assessment of gas bubble pulses of underwater explosion for a wide range of explosion depths and charge weights. Subject matter and methods. The paper discusses an explosion in open-water conditions. The study relies on analytical materials, numerical solution of common differential equations and on the experimental data. Main results. The study describes calculation expressions for gas bubble pulse parameters available in literature. It also co

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16

Mair, Hans U. "Review: Hydrocodes for Structural Response to Underwater Explosions." Shock and Vibration 6, no. 2 (1999): 81–96. http://dx.doi.org/10.1155/1999/587105.

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The applicability of the various hydrocode methodologies (Lagrangian, Eulerian, Coupled Eulerian–Lagrangian, and Arbitrary Lagrangian–Eulerian) for structural response to underwater explosions is reviewed. Only codes employing “structural elements” are realistically applicable to the analysis of thin-walled structural response to underwater explosions.

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17

Wang, Zhenxiong, Wenbin Gu, and Jianqing Liu. "Experimental Study on Peak Pressure of Shock Waves in Quasi-Shallow Water." Mathematical Problems in Engineering 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/702178.

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Based on the similarity laws of the explosion, this research develops similarity requirements of the small-scale experiments of underwater explosions and establishes a regression model for peak pressure of underwater shock waves under experimental condition. Small-scale experiments are carried out with two types of media at the bottom of the water and for different water depths. The peak pressure of underwater shock waves at different measuring points is acquired. A formula consistent with the similarity law of explosions is obtained and an analysis of the regression precision of the formula c

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18

Hayward, Matthew W., Colin N. Whittaker, Emily M. Lane, William L. Power, Stéphane Popinet, and James D. L. White. "Multilayer modelling of waves generated by explosive subaqueous volcanism." Natural Hazards and Earth System Sciences 22, no. 2 (February 25, 2022): 617–37. http://dx.doi.org/10.5194/nhess-22-617-2022.

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Abstract. Theoretical source models of underwater explosions are often applied in studying tsunami hazards associated with subaqueous volcanism; however, their use in numerical codes based on the shallow water equations can neglect the significant dispersion of the generated wavefield. A non-hydrostatic multilayer method is validated against a laboratory-scale experiment of wave generation from instantaneous disturbances and at field-scale subaqueous explosions at Mono Lake, California, utilising the relevant theoretical models. The numerical method accurately reproduces the range of observed

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19

So Gu, Kim. "Forensic seismology vis-à-vis an underwater explosion for the Roks Cheonan sinking in the Yellow Sea of the Korean Peninsula." International Journal of Physics Research and Applications 6, no. 1 (April 18, 2023): 073–89. http://dx.doi.org/10.29328/journal.ijpra.1001054.

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Most underwater explosions show characteristics of a bubble pulse and reverberation effects. To specifically identify the cause of an underwater explosion, it is most important to find a bubble pulse and reverberation effects using spectral and cepstral analyses. For a very shallow underwater explosion, spectral analysis is preferable to cepstral analysis. Time-domain analyses show bubble pulses as well as positive polarities of the first P-wave arrivals on the vertical component, and frequency-domain spectral analyses also clearly reveal the bubble pulse and reverberation effects. This study

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20

Sheng, Zhen-xin, Rong-zhong Liu, and Rui Guo. "Reverberation generated by sequential underwater explosions." Acoustical Physics 58, no. 2 (March 2012): 236–42. http://dx.doi.org/10.1134/s1063771012020200.

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21

Baumann-Pickering, Simone, Amanda J. Debich, Ana Širović, James V. Carretta, Jennifer S. Trickey, Rohen Gresalfi, Marie A. Roch, Sean M. Wiggins, and John A. Hildebrand. "Impact of underwater explosions on cetaceans." Journal of the Acoustical Society of America 134, no. 5 (November 2013): 4045. http://dx.doi.org/10.1121/1.4830763.

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22

Zhao, Qian, Jianxin Nie, Qiushi Wang, Zhengqing Zhou, and Qingjie Jiao. "Numerical and experimental study on cyclotrimethylenetrinitramine/aluminum explosives in underwater explosions." Advances in Mechanical Engineering 8, no. 10 (October 2016): 168781401666790. http://dx.doi.org/10.1177/1687814016667905.

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23

Librescu, Liviu, Sang-Yong Oh, and Jorg Hohe. "Implication of Nonclassical Effects on Dynamic Response of Sandwich Structures Exposed to Underwater and In-Air Explosions." Journal of Ship Research 51, no. 02 (June 1, 2007): 83–93. http://dx.doi.org/10.5957/jsr.2007.51.2.83.

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A study devoted to the dynamic response of sandwich panels to underwater and in-air explosions is presented. The study is carried out in the context of a geometrically nonlinear model of sandwich structures featuring anisotropic laminated face sheets and a transversely compressible orthotropic core. The unsteady pressure generated by the explosion and acting on the face of the sandwich panel includes the effect of the pressure wave transmission through the core. Its implications on the structural time-histories as corresponding to the underwater and in-air explosions are put into evidence. The

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24

Grządziela, Andrzej, Bogdan Szturomski, and Marcin Kluczyk. "Modeling of the Minehunters Hull Strenght." Advanced Materials Research 1036 (October 2014): 189–94. http://dx.doi.org/10.4028/www.scientific.net/amr.1036.189.

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The paper presents problems of modeling the ship’s hull subjected to the load of shock wave associated with non-contact underwater explosion. The article presents equations for describing the parameters of shock wave subjected to an impulse load. The paper presents a proposal of identification of a degree of hazard the ship’s hull forced from underwater explosion. A theoretical analysis was made of influence of changes of hull structure in vicinity of hull. Modeled signals and hull structure were recognized within sensitive symptoms of three sub models: model of hull structure, model of impact

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25

Gong, Yuxiang, Wenpeng Zhang, Zhipeng Du, and Yinghao Zhu. "Numerical Study on the Sagging Damage of the Simplified Hull Girder Subjected to Underwater Explosion Bubble." Applied Sciences 13, no. 4 (February 10, 2023): 2318. http://dx.doi.org/10.3390/app13042318.

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The pulsation of the bubbles resulting from underwater explosions can lead to severe damage to the structure of the ship’s hull, and even to its sinking. To study the damage mechanism of a simplified hull girder (SHG) subjected to near-field underwater explosion bubble, the Coupled Eulerian–Lagrangian (CEL) method based on verifications of the calculation accuracy was used to simulate 11 SHG structures. The sagging bend mechanism of SHGs was analyzed from the perspective of plastic hinge lines. Moreover, the length formula of the potential bend zone was studied through the assumed plastic hing

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26

Maler, D., R. Grikshtas, S. Efimov, L. Merzlikin, M. Liverts, M. Kozlov, and Ya E. Krasik. "Supersonic water jets as point-like sources of extremely high pressure." Physics of Plasmas 30, no. 2 (February 2023): 022710. http://dx.doi.org/10.1063/5.0135486.

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Two interacting supersonic water jets and collisions of a water jet with an aluminum target are studied experimentally and by hydrodynamic simulations. Supersonic water jets form, when shocks generated by underwater electrical explosions of conical wire arrays converge. The arrays are supplied by a ∼250 kA, ∼1 μs rise time current pulse. Underwater explosion of two conical arrays placed face to face produces jets propagating in air with velocities of ∼[Formula: see text] m/s leading to hot plasma formation at a temperature of ∼2200–3000 K, pressure ∼[Formula: see text] Pa, and density >[For

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27

Chen, D., L. J. Zhang, Y. Z. Lv, B. H. Li, and H. P. Gu. "Sensitivity Study on Typical Parameters of Underwater Explosion Numerical Simulation." Journal of Physics: Conference Series 2478, no. 12 (June 1, 2023): 122031. http://dx.doi.org/10.1088/1742-6596/2478/12/122031.

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Abstract In the numerical simulation research for underwater explosion, the selection of simulation parameters has a great influence on the results of numerical calculation. Based on the one-dimensional spherical symmetry model, this paper systematically studies the influence of three factors: grid size, water state equation and artificial viscosity coefficient on the important physical parameters of water explosion when TNT explosive is exploded in water. The important physical parameters selected for the explosion in water are the shock wave intensity, the maximu m radius of the bubble and t

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28

Doroshenko, Stanislav, Sergey Nefediev, and Vadim Malykh. "DESTRUCTION OF ROCKS AND MATERIALS USING AMMUNITION BASED ON SHOCK-WAVE CUTTING TECHNOLOGY IN EMERGENCY SITUATIONS." Problems of risk management in the technosphere 2023, no. 3 (September 28, 2023): 17–28. http://dx.doi.org/10.61260/1998-8990-2023-3-17-28.

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The paper assesses the effectiveness of shock-wave technology cutting for rocks and materials. A comparison of materials cutting technologies using a shock-wave and a shaped charge is done. Shows a significant reduction in the consumption of explosives and an increase in efficiency in shock-wave cutting with a simultaneous reduction in safe distances. Solving the problems of underwater explosions in the interests of rescue operations in emergency situations.

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Doroshenko, Stanislav, Sergey Nefedev, and Vadim Malykh. "DESTRUCTION OF MATERIALS BY SHOCK WAVE CUTTING CHARGES UNDER WATER IN EMERGENCY SITUATIONS." Problems of risk management in the technosphere 2023, no. 4 (February 14, 2024): 8–22. http://dx.doi.org/10.61260/1998-8990-2024-2023-4-8-22.

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The paper assesses the effectiveness of shock-wave technology cutting for rocks. A comparison of materials cutting technologies using a shock-wave and a shaped charge is done. Shows a significant reduction in the consumption of explosives and an increase in efficiency in shock-wave cutting with a simultaneous reduction in safe distances. Solving the problems of underwater explosions in the interests of rescue operations in emergency situations.

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30

Năstăsescu, Vasile, and Ghiță Bârsan. "Upon Bulk Cavitation Appearing in Underwater Explosions." International conference KNOWLEDGE-BASED ORGANIZATION 23, no. 3 (June 27, 2017): 71–78. http://dx.doi.org/10.1515/kbo-2017-0159.

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Abstract This paper presents some results of the author’s researching in connection with SPH (smoothed particle hydrodynamics) method and underwater explosion numerical modelling. All about cavitation fundamentals are considered known and about cavitation effects upon the structures. The authors, deeply preoccupied in using of SPH method, as well in modelling of the underwater explosion effects upon structures, had to take into consideration the bulk cavitation. A main issue in this study was the knowing of the bulk cavitation domain and its characteristic parameters. Such researching was poss

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31

Rajendran, R., J. K. Paik, and B. J. Kim. "Design of warship plates against underwater explosions." Ships and Offshore Structures 1, no. 4 (April 2006): 347–56. http://dx.doi.org/10.1533/saos.2005.0118.

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32

Krieger, John R., and Georges L. Chahine. "Acoustic signals of underwater explosions near surfaces." Journal of the Acoustical Society of America 118, no. 5 (November 2005): 2961–74. http://dx.doi.org/10.1121/1.2047147.

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33

Wiggins, Sean M., Anna Krumpel, Macey Rafter, LeRoy Dorman, John Hildebrand, and Simone Baumann-Pickering. "Explosions recorded underwater offshore of southern California." Journal of the Acoustical Society of America 146, no. 4 (October 2019): 2935. http://dx.doi.org/10.1121/1.5137193.

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34

Petri, Nadan M., Josip Dujella, Marija Definis-Gojanović, Lena Vranjković-Petri, and Dražen Cuculić. "Diving-Related Fatalities Caused by Underwater Explosions." American Journal of Forensic Medicine and Pathology 22, no. 4 (December 2001): 383–86. http://dx.doi.org/10.1097/00000433-200112000-00009.

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35

Shin, Young S. "Advances in ship survivability against underwater explosions." Ocean Systems Engineering 1, no. 2 (June 25, 2011): 111–19. http://dx.doi.org/10.12989/ose.2011.1.2.111.

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Liu, Zhanke, Yin L. Young, and Michael R. Motley. "Transient Response of Partially-Bonded Sandwich Plates Subject to Underwater Explosions." Shock and Vibration 17, no. 3 (2010): 233–50. http://dx.doi.org/10.1155/2010/919304.

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This paper investigated the influence of interfacial bonding on the transient response of sandwich plates subject to underwater explosions. It was found that un-bonded sandwich plates receive lower impact energy, and are able to dissipate more energy through plastic deformation of the foam core, than perfectly bonded plates. Consequently, interfacial de-bonding leads to lower net energy transfer from the explosion to the target structure although it also increases the structural deformation due to stiffness reduction. Parametric studies showed that theadvantage(diminishing of net energy transf

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Wardlaw Jr., Andrew B., and J. Alan Luton. "Fluid-Structure Interaction Mechanisms for Close-In Explosions." Shock and Vibration 7, no. 5 (2000): 265–75. http://dx.doi.org/10.1155/2000/141934.

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This paper examines fluid-structure interaction for close-in internal and external underwater explosions. The resulting flow field is impacted by the interaction between the reflected explosion shock and the explosion bubble. This shock reflects off the bubble as an expansion that reduces the pressure level between the bubble and the target, inducing cavitation and its subsequent collapse that reloads the target. Computational examples of several close-in interaction cases are presented to document the occurrence of these mechanisms. By comparing deformable and rigid body simulations, it is sh

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38

Wang, Jun, Jingxuan Yang, Fengfeng Wu, Tengfei Hu, and Shams Al Faisal. "Analysis of fracture mechanism for surrounding rock hole based on water-filled blasting." International Journal of Coal Science & Technology 7, no. 4 (June 2, 2020): 704–13. http://dx.doi.org/10.1007/s40789-020-00327-y.

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AbstractThe principles of fracture development during underwater blasting are examined based on explosion and impact dynamics, fluid dynamics, fracture dynamics, and field testing. The research reveals that the fracturing of the surrounding rock during underwater blasting is due to the combined action of shock and stress waves for the initial rock breakage and subsequent water expansion. The fracture development model for the surrounding rock of a drilling hole during underwater blasting is established. The rock fracturing range under the combined action of shock and stress waves is developed,

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Maler, D., M. Liverts, S. Efimov, A. Virozub, and Ya E. Krasik. "Addressing the critical parameters for overdamped underwater electrical explosion of wire." Physics of Plasmas 29, no. 10 (October 2022): 102703. http://dx.doi.org/10.1063/5.0118003.

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Experimental and magnetohydrodynamic numerical simulation results and analysis of a μs- and sub- μs-timescale overdamped underwater electrical explosion of copper wires having different lengths and diameters are presented. For these explosions, ∼80% of the energy stored in the pulse generator is deposited into the wire during a time comparable or shorter than a quarter period of the underdamped discharge. It was found that the threshold values of the deposited energy density, energy density rate, and energy density per unit area, which satisfy overdamped discharge, depend on the wire parameter

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40

Bandari, Anashe. "Underwater electrical wire explosions can destroy steel plate." Scilight 2021, no. 24 (June 11, 2021): 241107. http://dx.doi.org/10.1063/10.0005437.

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41

MacBeth, C. D., and P. W. Burton. "Surface waves generated by underwater explosions offshore Scotland." Geophysical Journal International 94, no. 2 (August 1, 1988): 285–94. http://dx.doi.org/10.1111/j.1365-246x.1988.tb05902.x.

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42

Mair, Hans U. "Benchmarks for Submerged Structure Response to Underwater Explosions." Shock and Vibration 6, no. 4 (1999): 169–81. http://dx.doi.org/10.1155/1999/743708.

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Benchmarks for submerged structure response to underwater explosions (UNDEX) are compiled. Both analytical and empirical benchmarks are presented; each type has advantages and disadvantages for the purposes of model validation, though no methodology for employing these benchmarks in a model validation effort is proposed. Benchmark computations are also referenced as part of this compilation. Finally, extension of this compilation to the UNDEX response of internal equipment and floating structures, and to hydrodynamic/hydraulic ram problems, is proposed.

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Adushkin, A. V., V. N. Burchik, A. I. Goncharov, V. I. Kulikov, B. D. Khristoforov, and V. I. Tsykanovskii. "Seismic, Hydroacoustic, and Acoustic Action of Underwater Explosions." Combustion, Explosion, and Shock Waves 40, no. 6 (November 2004): 707–13. http://dx.doi.org/10.1023/b:cesw.0000048276.29822.d6.

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44

Doronin, F. L. "Underwater explosions in dynamic testing of hydraulic structures." Power Technology and Engineering 52, no. 6 (March 2019): 657–59. http://dx.doi.org/10.1007/s10749-019-01008-w.

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Atanov, G. A., and S. V. Vetrov. "Calculation of contact stresses in axisymmetric underwater explosions." Journal of Soviet Mathematics 60, no. 1 (June 1992): 1328–30. http://dx.doi.org/10.1007/bf01097696.

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Smith, Michael E., Alyssa W. Accomando, Victoria Bowman, Brandon M. Casper, Peter H. Dahl, A. Keith Jenkins, Sarah Kotecki, and Arthur N. Popper. "Physical effects of sound exposure from underwater explosions on Pacific mackerel (Scomber japonicus): Effects on the inner ear." Journal of the Acoustical Society of America 152, no. 2 (August 2022): 733–44. http://dx.doi.org/10.1121/10.0012991.

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Studies of the effects of sounds from underwater explosions on fishes have not included examination of potential effects on the ear. Caged Pacific mackerel ( Scomber japonicus) located at seven distances (between approximately 35 and 800 m) from a single detonation of 4.5 kg of C4 explosives were exposed. After fish were recovered from the cages, the sensory epithelia of the saccular region of the inner ears were prepared and then examined microscopically. The number of hair cell (HC) ciliary bundles was counted at ten preselected 2500 μm2 regions. HCs were significantly reduced in fish expose

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Zhang, Jing, Xing Hua Shi, Ding Hai Xu, and Shan Wang. "Destroy Probability of Ship Defensive Structure Subjected to Underwater Contact Explosions." Advanced Materials Research 44-46 (June 2008): 297–302. http://dx.doi.org/10.4028/www.scientific.net/amr.44-46.297.

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The reliability of ship defensive structure subjected to underwater contact explosions is important both in theory and engineering. Because of the complex response of structure under explosions in which the fluid-structure-interaction should be considered, the problem under discussion could not be solved by analytical method. The Monte Carlo combined with FEM method is used to solve this problem in this paper. The samples of basic random variables that are dynamite density, the elastic modulus and ultimate strength of plate material are generated by the random number generate program. Then, wi

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Walters, A. P., J. M. Didoszak, and Y. W. Kwon. "Explicit Modeling of Solid Ocean Floor in Shallow Underwater Explosions." Shock and Vibration 20, no. 1 (2013): 189–97. http://dx.doi.org/10.1155/2013/901042.

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Current practices for modeling the ocean floor in underwater explosion simulations call for application of an inviscid fluid with soil properties. A method for modeling the ocean floor as a Lagrangian solid, vice an Eulerian fluid, was developed in order to determine its effects on underwater explosions in shallow water using the DYSMAS solver. The Lagrangian solid bottom model utilized transmitting boundary segments, exterior nodal forces acting as constraints, and the application of prestress to minimize any distortions into the fluid domain. For simplicity, elastic materials were used in th

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Zhang, Jing, and Xing Hua Shi. "Dynamic Response of Stiffened Plate under Underwater Contact Explosions." Advanced Materials Research 255-260 (May 2011): 1665–70. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.1665.

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In order to study the dynamic responses of stiffened plate under underwater contact explosions, the FEM code LS-DYNA is used to discuss the problem, six different stiffened plates are included. The stiffened plate’s distortion, the size of crevasses in the numerical simulation are analyzed. The position where the maximum plastic strain appears, the effective stress and acceleration are also described. It is revealed that the deformation of stiffened plate is different with the position of the stiffener, but the stiffener can harmonize and reduce the deformation of plate, and the whole structur

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Del Pezzo, E. "Discrimination of Earthquakes and Underwater Explosions Using Neural Networks." Bulletin of the Seismological Society of America 93, no. 1 (February 1, 2003): 215–23. http://dx.doi.org/10.1785/0120020005.

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