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学者姓名：黄瑞源
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Abstract ：
Shock waves inflict catastrophic impacts and severe damage on ships. To investigate the following bubble dynamics near damaged ship structures subjected to shock waves, underwater explosion experiments were conducted using 2.5 g TNT detonated beneath clamped elastoplastic plates with varying hole dimensions and shapes. The experimental results indicated that the dimension and shape of these holes significantly influence the morphology of resulting water jets. A finite element model was developed and validated, followed by a series of numerical simulations to systematically investigate the evolution of water jets and the dynamic response of clamped elastoplastic plates across varying stand-off distances, hole dimensions, and explosive equivalents. The findings reveal that the interaction of various loads and boundary conditions lead to distinct water jets: upward, counter, and downtown water jets. Based on these findings, a criterion was proposed to classify jet morphologies beneath clamped elastoplastic plates. Finally, full-scale ship numerical simulations were performed at varying distances to assess the damage modes associated with various jet types. This investigation offers certain guidance for the blast-resistance ship design.
Keyword ：
Clamped elastoplastic plate Clamped elastoplastic plate Full-size ships Full-size ships Hole Hole Underwater explosion Underwater explosion Water jet Water jet
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| GB/T 7714 | Jiang, Yipeng , Qin, Jian , Lai, Zhichao et al. Experimental and numerical investigation on bubble dynamics near plates with a hole under near-field underwater explosion [J]. | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING , 2025 , 200 . |
| MLA | Jiang, Yipeng et al. "Experimental and numerical investigation on bubble dynamics near plates with a hole under near-field underwater explosion" . | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 200 (2025) . |
| APA | Jiang, Yipeng , Qin, Jian , Lai, Zhichao , Meng, Xiangyao , Wen, Yanbo , Huang, Ruiyuan . Experimental and numerical investigation on bubble dynamics near plates with a hole under near-field underwater explosion . | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING , 2025 , 200 . |
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This paper first conducted quasi-static uniaxial compression tests and Split Hopkinson Pressure Bar (SHPB) dynamic compression tests to investigate the effects of strain rate on the stress-strain curves, yield strength, and energy absorption capacity of Nitrile butadiene rubber (NBR). The measured stress-strain curves were then used to modify the classical Mooney-Rivlin (MR) model to incorporate the strain rate effect. Results from numerical simulations indicated that: (i) both the MR and modified MR models can effectively predict the behavior of NBR under quasi-static conditions, and (ii) the modified MR model demonstrates superior accuracy across varying strain rates. Drop weight impact tests were also conducted to further validate the modified MR model. Subsequently, 90 drop weight impact numerical simulations with varying thickness-to-radius ratios were performed using the modified MR model. The influence of the thickness-to-radius ratio on the cushioning performance of NBR was analyzed, and an empirical formula relating the thickness-to-radius ratio to peak contact force was established.
Keyword ：
Constitutive model Constitutive model Energy-absorbing material Energy-absorbing material Impact loading Impact loading Nitrile butadiene rubber (NBR) Nitrile butadiene rubber (NBR) Numerical simulation Numerical simulation Strain rate effect Strain rate effect
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| GB/T 7714 | Huang, Ruiyuan , He, Chenyang , Wen, Yanbo et al. Strain rate effect and cushioning performance of nitrile butadiene rubber under high-speed impact [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 494 . |
| MLA | Huang, Ruiyuan et al. "Strain rate effect and cushioning performance of nitrile butadiene rubber under high-speed impact" . | CONSTRUCTION AND BUILDING MATERIALS 494 (2025) . |
| APA | Huang, Ruiyuan , He, Chenyang , Wen, Yanbo , Wang, Tao , Guan, Zhenhuang , Liu, Lei et al. Strain rate effect and cushioning performance of nitrile butadiene rubber under high-speed impact . | CONSTRUCTION AND BUILDING MATERIALS , 2025 , 494 . |
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Abstract ：
The strain rate-temperature coupling effect (STCE) on the stress-strain curves and energy absorption capacity of nitrile rubber (NBR) is investigated. It is found that the energy absorption capacity of NBR increases with increasing strain rate, and this enhancement is essentially independent of temperature; however, it decreases with increasing temperature, and this weakening trend is essentially consistent across different strain rates. The classical Mooney-Rivlin (MR) model is modified to develop a revised MR model incorporating STCE. Material parameters of the modified MR model are determined through experimental data fitting. Numerical simulations of uniaxial compression tests are performed using the modified MR model. The results indicate that: (i) Both modified MR and classical MR models effectively predict the quasi-static mechanical behavior of NBR at ambient temperature; (ii) Prediction errors of the MR model increase with higher strain rates and elevated temperatures. In contrast, the modified MR model can accurately predict the static and dynamic mechanical behavior of NBR under varying strain rates and temperatures, with prediction accuracy improved by approximately 90%. These findings provide a theoretical basis for optimizing the performance design of NBR components such as sealing elements and damping parts in fields including automotive, aerospace, and mechanical manufacturing.
Keyword ：
applications applications kinetics kinetics rubber rubber theory and modeling theory and modeling
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| GB/T 7714 | He, Chenyang , Wen, Yanbo , Lai, Zhichao et al. Study on the Strain Rate-Temperature Coupling Effect of Nitrile Rubber [J]. | JOURNAL OF APPLIED POLYMER SCIENCE , 2025 . |
| MLA | He, Chenyang et al. "Study on the Strain Rate-Temperature Coupling Effect of Nitrile Rubber" . | JOURNAL OF APPLIED POLYMER SCIENCE (2025) . |
| APA | He, Chenyang , Wen, Yanbo , Lai, Zhichao , Huang, Xidi , Ye, Ying , Huang, Ruiyuan . Study on the Strain Rate-Temperature Coupling Effect of Nitrile Rubber . | JOURNAL OF APPLIED POLYMER SCIENCE , 2025 . |
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Repeated loading and unloading tests were carried out on concrete under different confining pressures and strain rates to characterize the damage using the decrease in elastic modulus, and a damage evolution equation considering the effects of confining pressure and strain rate was established. At the same time, the yield criterion and equation of state of the Holmquist-Johnson-Cook (HJC) model were modified by combining the experimental data of high confining pressure. The modified model was validated by performing single -element numerical simulations for different stress states. Then, experiments were carried out on the penetration of tungsten alloy projectiles into concrete slabs, with penetration velocities ranging from 172 m/s to 302 m/s. The depth of penetration and crater area were obtained. Numerical simulations were subsequently carried out using the proposed model. The results showed that this model can describe the behaviour of concrete under dynamic loading. Finally, the damage evolution mechanism of concrete during the penetration process is analysed in conjunction with the proposed damage evolution equation.
Keyword ：
Concrete Concrete Constitutive model Constitutive model Mechanical properties Mechanical properties Numerical simulation Numerical simulation Projectile Projectile
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| GB/T 7714 | Huang, Ruiyuan , Wen, Yanbo , Li, Yi et al. Application of concrete damage evolution equation considering confining pressure and strain rate effects in projectile penetration [J]. | ENGINEERING FAILURE ANALYSIS , 2024 , 158 . |
| MLA | Huang, Ruiyuan et al. "Application of concrete damage evolution equation considering confining pressure and strain rate effects in projectile penetration" . | ENGINEERING FAILURE ANALYSIS 158 (2024) . |
| APA | Huang, Ruiyuan , Wen, Yanbo , Li, Yi , Zhou, Hao , Yang, Xiaoqiang , Qin, Jian et al. Application of concrete damage evolution equation considering confining pressure and strain rate effects in projectile penetration . | ENGINEERING FAILURE ANALYSIS , 2024 , 158 . |
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Using the method combining experiments and numerical simulations, the dynamic behavior of explosion bubbles for the cylindrical charges with different length-diameter ratios (L/D) under fixed square plates was studied. Explosion tests of TNT explosives with the mass of 2.5g and L/D of 1:1 and 2:1 under a fixed square plate was carried out, and the evolution of explosive bubbles was recorded by the high-speed camera. ABAQUS software was used to numerically simulate the underwater explosion bubble evolution process of cylindrical charges with L/D of 5:1, 10:1, and 20:1 under vertical and horizontal settings. The results show that there is no obvious difference between the explosion of 2.5g TNT explosives with a L/D of 1:1 and 2:1 under the board. When the explosives are placed vertically, the difference in the initial shape of the explosion bubble caused by different L/D of the explosives will be quickly eliminated during the evolution of the bubble. Moreover, the L/D and the starting position have effects on the water jet. When the explosives are placed horizontally, the symmetry of the bubble and the shape of the water jet will be affected by the location of the initiation point. To be specific, for the detonation from the end face, there is a slight asymmetry in the process of the bubble expansion, and the jet is offset in the direction of the starting point. Moreover, the larger the L/D of the explosives, the wider the water jet in the explosion bubble, and the smaller the load of the water jet. For the detonation from the center, the explosive bubble forms a vertical water jet without offset. © 2024 China Ordnance Industry Corporation. All rights reserved.
Keyword ：
ABAQUS ABAQUS Detonation Detonation High speed cameras High speed cameras Jets Jets Numerical methods Numerical methods Underwater explosions Underwater explosions
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| GB/T 7714 | Liu, Yuan-Kai , Qin, Jian , Chi, Hui et al. Dynamic Behavior Characteristics of Underwater Explosion Bubbles with Different Length-diameter Ratios [J]. | Chinese Journal of Explosives and Propellants , 2024 , 47 (1) : 51-63 . |
| MLA | Liu, Yuan-Kai et al. "Dynamic Behavior Characteristics of Underwater Explosion Bubbles with Different Length-diameter Ratios" . | Chinese Journal of Explosives and Propellants 47 . 1 (2024) : 51-63 . |
| APA | Liu, Yuan-Kai , Qin, Jian , Chi, Hui , Meng, Xiang-Yao , Wen, Yan-Bo , Huang, Rui-Yuan . Dynamic Behavior Characteristics of Underwater Explosion Bubbles with Different Length-diameter Ratios . | Chinese Journal of Explosives and Propellants , 2024 , 47 (1) , 51-63 . |
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The current research on the cavitation phenomenon in the underwater explosion process is focused on the shock wave phase. In this study, it was found that there was also significant cavitation during bubble pulsation. Underwater explosion experiments were carried out at the bottom of a sheet using 2.5 g of TNT, which also showed that: (a) Cavitation lasts for the same duration as the bubble contraction time, (b) A cavitation closure pressure, the peak of which is greater than the bubble pulsation pressure, is produced by the closing of the cavitation zone. A tensile cut-off model was introduced to simulate the cavitation phenomenon during bubble pulsation, and the formation mechanism was investigated. The numerical simulation results show that: (a) The cavitation phenomenon is visible when the sheet above the explosive and the explosion distance are between 0.93 and 1.17 times the radius of the largest bubble, or between 0.69 and 1.85 times the maximum radius of the bubble when the sheet below the explosive, (b) The cavitation region and cavitation closure pressure increase and decrease with increasing explosion distance, peaking at a value close to one times the theoretical maximum bubble radius, and (c) The cavitation zone shrinks and the cavitation closing pressure drops as sheet thickness increases.
Keyword ：
Bubble pulsation Bubble pulsation Cavitation Cavitation Near-field Near-field Underwater explosion Underwater explosion
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| GB/T 7714 | Wen, Yanbo , Qin, Jian , Lai, Zhichao et al. Experimental and numerical simulation investigation of cavitation phenomenon during bubble pulsation process [J]. | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING , 2024 , 186 . |
| MLA | Wen, Yanbo et al. "Experimental and numerical simulation investigation of cavitation phenomenon during bubble pulsation process" . | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 186 (2024) . |
| APA | Wen, Yanbo , Qin, Jian , Lai, Zhichao , Meng, Xiangyao , Yang, Xiaoqiang , Chi, Hui et al. Experimental and numerical simulation investigation of cavitation phenomenon during bubble pulsation process . | INTERNATIONAL JOURNAL OF IMPACT ENGINEERING , 2024 , 186 . |
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Near-field underwater explosions generate complex load forms and cause destructive strikes on ships. To investigate the damage characteristics of ships under the combined effect of multiple loads, local and overall damage modes were first investigated through the combination of experimental tests and numerical simulation. Then a series of numerical simulations of full-scale ships subjected to near-field underwater explosions with different stand-off distances, equivalents, and detonation positions were carried out. The damage effects of shock wave, bubble pulsation, after flow, and water jet loads on ships were analyzed. The results show that the combined effects of different loads lead to different damage modes. Shock waves and after flow loads are the main cause of local damage and hogging damage, while pressure difference and bubble adsorption are the main reasons for the hogging damage. Finally, a criterion was proposed to determine the damage modes of ships under near-field underwater explosions.
Keyword ：
CEL method CEL method Full-size ships Full-size ships Near-field underwater explosion Near-field underwater explosion Numerical simulation Numerical simulation Ship damage modes Ship damage modes
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| GB/T 7714 | Huang, Ruiyuan , Jiang, Yipeng , Qin, Jian et al. Investigation on the coupling damage effects of ships subjected to near-field underwater explosion loads [J]. | MARINE STRUCTURES , 2024 , 98 . |
| MLA | Huang, Ruiyuan et al. "Investigation on the coupling damage effects of ships subjected to near-field underwater explosion loads" . | MARINE STRUCTURES 98 (2024) . |
| APA | Huang, Ruiyuan , Jiang, Yipeng , Qin, Jian , Meng, Xiangyao , Chi, Hui , Yang, Xiaoqiang et al. Investigation on the coupling damage effects of ships subjected to near-field underwater explosion loads . | MARINE STRUCTURES , 2024 , 98 . |
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Concrete is a strain rate sensitive material, which is widely used in protective structures, and its strain rate effect needs to be considered. This study aims to obtain the real strain rate effect of concrete material. Firstly, the dynamic compression test of concrete was carried out by using split Hopkinson pressure bar (SHPB). The classical Holmquist-Johnson-Cook (HJC) model of concrete is modified based on the test results and the test data of the static performance of concrete. Then the finite element model is established. The numerical simulation results and theoretical analysis show that the inertia effect leads to the error between the test value and the simulation value. To eliminate the influence of inertia effect, this study embeds the inertia effect term into the constitutive model for secondary modification. According to the results of numerical analysis, the specific form of this term and its related parameters are determined. The modified constitutive model can better predict the test results and reproduce the damage morphology of concrete under impact load.
Keyword ：
Concrete Concrete Constitutive model Constitutive model Inertia effect Inertia effect SHPB SHPB Strain rate Strain rate
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| GB/T 7714 | Huang, Ruiyuan , Guan, Zhenhuang , Qin, Jian et al. Strain rate effect of concrete based on split Hopkinson pressure bar (SHPB) test [J]. | JOURNAL OF BUILDING ENGINEERING , 2024 , 86 . |
| MLA | Huang, Ruiyuan et al. "Strain rate effect of concrete based on split Hopkinson pressure bar (SHPB) test" . | JOURNAL OF BUILDING ENGINEERING 86 (2024) . |
| APA | Huang, Ruiyuan , Guan, Zhenhuang , Qin, Jian , Wen, Yanbo , Lai, Zhichao . Strain rate effect of concrete based on split Hopkinson pressure bar (SHPB) test . | JOURNAL OF BUILDING ENGINEERING , 2024 , 86 . |
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The cavitation phenomenon caused by near-field underwater explosion imposes a secondary loading on ship structures. Studying the cavitation effects of plates during underwater explosions has implications for ship protection since plate is a typical structure of ships. This paper experimentally investigated the behavior of fixed square plates subjected to near-field underwater explosions. Experimental results indicated that cavitation existed in both shockwave and bubble pulsation stages; and the cavitation closure load at bubble pulsation stage was measured. To further investigate the cavitation phenomenon and the load characteristics at the bubble pulsation stage, finite element models were developed. The numerical results show that cavitation will increase the bubble load impulse by 47 % under specific conditions. These models were then used to investigate the influence of the stand-off distance and charge weight on cavitation area and load characteristics. An empirical formula was finally proposed to predict the coupled impulse of cavitation closure, bubble pulsation and water jet. This research has practical guidelines for the protection design of ship structures.
Keyword ：
Bubble pulsation Bubble pulsation Cavitation Cavitation Impulse Impulse Load Load Underwater explosion Underwater explosion
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| GB/T 7714 | Huang, Ruiyuan , Chen, Yufan , Qin, Jian et al. Investigation on cavitation phenomena and load characteristics of fixed square plates subjected to near-field underwater explosion [J]. | OCEAN ENGINEERING , 2024 , 295 . |
| MLA | Huang, Ruiyuan et al. "Investigation on cavitation phenomena and load characteristics of fixed square plates subjected to near-field underwater explosion" . | OCEAN ENGINEERING 295 (2024) . |
| APA | Huang, Ruiyuan , Chen, Yufan , Qin, Jian , Meng, Xiangyao , Wen, Yanbo , Yang, Xiaoqiang et al. Investigation on cavitation phenomena and load characteristics of fixed square plates subjected to near-field underwater explosion . | OCEAN ENGINEERING , 2024 , 295 . |
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With the advancement of weapon systems, high-strength concrete (HSC) has been extensively utilized in protective engineering. To investigate the damage characteristics of HSC under impact resistance, this study first conducted Split Hopkinson Pressure Bar (SHPB) tests on HSC, along with cyclic loading and unloading tests. Based on the test data of SHPB and cyclic loading and unloading, the original Holmquist-Johnson-Cook (HJC) model was adjusted accordingly. Additionally, tungsten alloy bullet penetration tests on concrete plates with different initial velocities were performed to measure the depth of penetration (DOP) and crater area corresponding to each velocity. A numerical model was then established using Abaqus software. The test results and numerical simulations were compared and analyzed, demonstrating that the predicted results closely matched the test, with a DOP error margin of less than 10 %. This confirmed the feasibility and accuracy of the modified model and its parameters. Finally, the results of numerical simulation were used to analyze the mechanical properties of HSC during impact resistance.
Keyword ：
Constitutive model Constitutive model High-strength concrete High-strength concrete Numerical simulation Numerical simulation Projectile penetration Projectile penetration
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| GB/T 7714 | Guan, Zhenhuang , Lai, Zhichao , Qin, Jian et al. Mechanical properties of high-strength concrete (HSC) under projectile penetration [J]. | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 442 . |
| MLA | Guan, Zhenhuang et al. "Mechanical properties of high-strength concrete (HSC) under projectile penetration" . | CONSTRUCTION AND BUILDING MATERIALS 442 (2024) . |
| APA | Guan, Zhenhuang , Lai, Zhichao , Qin, Jian , Chen, Yufan , Wen, Yanbo , Huang, Ruiyuan . Mechanical properties of high-strength concrete (HSC) under projectile penetration . | CONSTRUCTION AND BUILDING MATERIALS , 2024 , 442 . |
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