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Journal articles on the topic 'AUTODYN Model'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Grunwald, Christoph, Benjamin Schaufelberger, Alexander Stolz, Werner Riedel, and Thomas Borrvall. "A general concrete model in hydrocodes: Verification and validation of the Riedel–Hiermaier–Thoma model in LS-DYNA." International Journal of Protective Structures 8, no. 1 (2017): 58–85. http://dx.doi.org/10.1177/2041419617695977.

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The Riedel–Hiermaier–Thoma model, which is available in ANSYS Autodyn since 2000 as a description of concrete and similar geological materials in highly dynamic loading situations, has recently been implemented in the multi-purpose Finite Element code LS-DYNA. This article gives a brief overview of the physical details and verifies the new implementation by comparing single element test results with the established Autodyn code. Four real cases, ranging from low to very high pressure loading by impact, penetration and blast, are used to demonstrate thereafter the validity of the model in a wid

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2

Zuievska, N., O. Vovk, and R. Kharchenko. "Modeling destructive effects of an explosion in an urban environment using ANSYS AUTODYN." Collection of Research Papers of the National Mining University 75 (December 2023): 55–63. http://dx.doi.org/10.33271/crpnmu/75.055.

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Purpose is to study the impact of explosive waves in an urban environment using comprehensive numerical modeling. A series of simulations were conducted using ANSYS AUTODYN software, allowing us to accurately replicate the dynamics of explosive wave interactions with urban structures. The methods used involves calculations through modeling and analysis of results. The obtained research results demonstrate that the application of numerical modeling with ANSYS AUTODYN allows for highly precise prediction of the influence of explosive waves on urban structures. These methods effectively model com

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3

Hu, Guo, Jun Wu, and Liang Li. "Advanced Concrete Model in Hydrocode to Simulate Concrete Structures under Blast Loading." Advances in Civil Engineering 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/7540151.

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The formulations of the advanced concrete RHT model adopted in AUTODYN are investigated and numerical studies are conducted to study the RHT model’s actual performances under various loading conditions. It is found that using of default values in the RHT model is not able to simulate the realistic behavior of concrete under various loading conditions. Thus modified parameters in the RHT model are proposed to better capture the realistic behavior of concrete under such loading conditions. Furthermore, numerical simulation of normal concrete slabs and multilayer concrete slabs subjected to blast

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4

Hu, XB, L. He, HL Cui, et al. "Research on Material Model of Brick Block Based on Ballistic Penetration." Journal of Physics: Conference Series 2891, no. 7 (2024): 072001. https://doi.org/10.1088/1742-6596/2891/7/072001.

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Abstract In the face of the need for soldiers to strike targets behind walls in military activities and counter-terrorism operations, while preventing projectiles from penetrating walls and harming other non military targets, this paper conducts research on brick blocks material models based on Autodyn software to analyze the penetration of pointed oval projectiles into 24cm thick brick walls. This article first studied the material models and obtained two sets of material models suitable for brick blocks, namely the Riedel-Hiermaier-Thomamodel material model and the Drucker Prager material mo

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Ahmad Mujahid, Ahmad Zaidi, Shah Koslan Md Fuad, and Othman Mohd Zaid. "Response of Armour Plate Subjected to Blast Loading Based on Analytical Model of Second Order Single Degree of Freedom." Materials Science Forum 819 (June 2015): 387–92. http://dx.doi.org/10.4028/www.scientific.net/msf.819.387.

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The rolled homogeneous armour (RHA) plate is commonly used for armoured vehicle skin. Preliminary predictions of the deflections from RHA plate subjected to blast loading is important for establishing guidelines before it is used in vehicle skin. The goal of this work is a reliable technique for predicting the RHA plate response subjected to blast loading, and the empirical result performed by other researchers will be taken as a reference. Based on selected references, a small number of assumptions lead to the developed Single Degree of Freedom (SDOF) idealised models. This paper provides an

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6

Choi, Mijin, Jung-Ryul Lee, and Cheol-Won Kong. "Development of a Numerical Model for an Expanding Tube with Linear Explosive Using AUTODYN." Shock and Vibration 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/436156.

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Pyrotechnic devices have been employed in satellite launch vehicle missions, generally for the separation of structural subsystems such as stage and satellite separation. Expanding tubes are linear explosives enclosed by an oval steel tube and have been widely used for pyrotechnic joint separation systems. A numerical model is proposed for the prediction of the proper load of an expanding tube using a nonlinear dynamic analysis code, AUTODYN 2D and 3D. To compute a proper core load, numerical models of the open-ended steel tube and mild detonating tube encasing a high explosive were developed

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7

Román, Zsolt. "Convergence Study of 1–D CFD Cell Size for Shockwave Parameters Using Autodyn Hydrocode." Academic and Applied Research in Military and Public Management Science 12, no. 2 (2013): 213–20. http://dx.doi.org/10.32565/aarms.2013.2.4.

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The use of CFD codes has become widespread to solve the shockwave propagation problem, as they are able to successfully model explosions. Using the structured grid spherically and cylindrical charges cannot be modelled in 3D, thus remapping techniques have been developed to map spherical shockwaves from 1D to 2D and then to 3D. This method highlights the importance of the accuracy of the 1D model, which is mainly dependent on the mesh size. This study aims at finding the required division ratio for the calculation domain.

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Yarar, Eser, and Alpay Tamer Erturk. "Multiple-Shot Impact Model for Vibration-Assisted SMAT Process." Key Engineering Materials 905 (January 4, 2022): 3–8. http://dx.doi.org/10.4028/www.scientific.net/kem.905.3.

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Surface mechanical attrition treatment enhances the mechanical properties of metallic materials by inducing high strength layer on the top surface. In this study, multiple-shot impact behavior was modeled for the 7075-T6 aluminum alloy to achieve maximum magnitudes of equivalent stress, plastic strain, residual stress depth, and residual stress. Finite element simulations have been carried out to investigate the effect of selected framework on stress and strains in constituent. The plastic deformation process during SMAT was analyzed using ANSYS/AUTODYN explicit dynamic solver according to sho

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9

Kamarudin, Khairul H., Ahmad Mujahid Ahmad Zaidi, Ahmad Humaizi Hilmi, et al. "Simulation Study on Hypervelocity Penetration of Lab Scaled Shape Charge Mechanism." Journal of Engineering and Technological Sciences 54, no. 6 (2022): 220613. http://dx.doi.org/10.5614/j.eng.technol.sci.2022.54.6.13.

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Shaped charge (SC) is a mechanism used by defence industries as anti-armored weapon to penetrate armored plates. Numerous studies have been conducted on the shaped charged effects. However, experimental studies are limited due to great safety requirement and limited access to high grade explosive. Due to these limitations, an experimental study on a small-scale shaped charge mechanism (SCM) penetration blast test was conducted against five (5) types of target materials. The experimental data is then verified by simulation to proof that it can be used to predict the SC penetration data. This pa

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10

Sergii, Shlyk. "Research of ANSYS Autodyn capabilities in evaluating the landmine blast resistance of specialized armored vehicles." Technology audit and production reserves 3, no. 1(59) (2021): 6–15. https://doi.org/10.15587/2706-5448.2021.235397.

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<em>The object of research is the processes of pulse explosive loading in an explicit formulation for simulation of complex nonlinear dynamics of solids, gases, and their interactions.</em> <em>One of the most problematic areas of modern studies of nonlinear dynamic loads of materials using a numerical analysis is that such studies usually do not take into account the characteristic transition of the stationary deformation zone of the loaded material to the unsteady one and the front pressure and shockwave velocity variation by time.</em> <em>The work is aimed at developing a mathematical

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11

Catovic, Alan. "Comparison of Penetration Capability of Several Contemporary 5.56×45 mm Projectiles into Hard Targets." Advances in Military Technology 19, no. 1 (2024): 71–90. http://dx.doi.org/10.3849/aimt.01870.

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The analysis was performed on six commonly used 5.56 × 45 mm projectile types (M193, M855, M855A1, L31A1, M995, and AP45). The projectile’s impact velocity (chosen as 900 m/s) was the same in the examination process. This made it possible to assess how the projectile’s design has affected its performance against a hard steel target. These evaluations included numerical simulations (Ansys Autodyn) of projectile impacts. Using the available experimental data, the materials in the computational model were first validated. A short description and CAD model of projectiles is also given. Relevant co

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12

Chen, Qing-hua, Yue-qiu Jiang, Yu-xin Gao, Yu-hang Liu, and Jia-qi Yang. "Simplified Algorithm Model for Explosion Shockwave Load in the Cabin." Shock and Vibration 2021 (December 31, 2021): 1–12. http://dx.doi.org/10.1155/2021/7726779.

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In order to obtain the shockwave load simplified algorithm model for the semiarmored projectile internal explosion in the cabin, this research made use of AUTODYN to provide a numerical modeling method for explosion in the cabin and verified the accuracy of the method via the experiment. Internal explosion simulation calculation was conducted on the operating condition numerical model with different cabin structural dimensions and different explosive loads. The cabin internal explosion space was divided into the noncorner central area, near-wall area, two-sided corner area, and three-sided cor

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13

Mohottige, Nimasha Weerasingha, Chengqing Wu, and Hong Hao. "Characteristics of Free Air Blast Loading Due to Simultaneously Detonated Multiple Charges." International Journal of Structural Stability and Dynamics 14, no. 04 (2014): 1450002. http://dx.doi.org/10.1142/s0219455414500023.

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Extensive research has been conducted to investigate the characteristics of blast load due to single charge explosion, including numerical simulations and experimental blast tests in both unconfined and confined environments. Further, available guidelines for blast resistant design such as UFC-3-340-02 (2008) and ASCE 59-11 (2011) provide details to predict blast loads on a structure subjected to single charge explosion. However, blast load characteristics due to multiple charge explosions are poorly discussed in available literature. In this paper, commercially available Hydrocode, AUTODYN is

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14

Ding, Yu Qing, Wen Hui Tang, Xian Wen Ran, and Xin Xu. "Computational Simulations of Dynamic Compaction of Dry Sand." Advanced Materials Research 598 (November 2012): 516–19. http://dx.doi.org/10.4028/www.scientific.net/amr.598.516.

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The computational analysis of plate impact experiments on dry sand utilizing the Mie- Grüneisen (MG) equation of state and the P-α compaction model were investigated in this study. A number of two dimensional axial symmetric computations were performed by using the hydrocode AUTODYN. The computational results were compared with the particle velocity on the back surface of the rear plate measured by the VISAR system and the first shock-wave arrival times detected by piezoelectric pins in the samples respectively. It was found that the P-α compaction model was more accurately reproduce the exper

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15

Saravanan, S. "Thermo-Structure Approach to Dissimilar Explosive Cladding with Interlayer." Journal of Physics: Conference Series 2478, no. 4 (2023): 042014. http://dx.doi.org/10.1088/1742-6596/2478/4/042014.

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Abstract A thermodynamic model capable of predicting the change in internal energy, work done, and thermal energy required during aluminum-stainless steel explosive cladding is presented. The mathematical model is instrumental in determining the temperature and pressure developed at the interface, which characterizes the interface microstructure, compared with the numerical simulation. Numerical simulation is implemented by the Smoothed Particle Hydrodynamics method available in ANSYS Autodyn. Furthermore, the effect of different interlayers, such as Al 1100, copper, and SS 304, on kinetic ene

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16

Zhou, Zhangtao, Zheming Zhu, XinXing Jin, and Hao Tang. "Numerical Prediction of Rock Fracturing During the Process of Excavation." International Journal of Geotechnical Earthquake Engineering 1, no. 2 (2010): 12–23. http://dx.doi.org/10.4018/jgee.2010070102.

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During the process of excavation, blasting can induce cracking inside the surrounding rock. Considering the effects of material properties and loading conditions, a rock blasting excavation model with two successive excavation steps was developed through the use of AUTODYN code. Four kinds of equation of state (EOS), linear, shock, JWL, and compaction were applied to the materials employed in this numerical model. A modified principal stress failure criterion was applied to determining material statuses, and TNT explosive and a relatively homogeneous igneous rock, diorite, were used in this nu

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17

Hong, Xiaowen, Anshun Shi, Yuanyuan Ge, et al. "Static and dynamic mechanical behavior and constitutive parameters determination of high nitrogen austenitic stainless steel." Journal of Physics: Conference Series 2808, no. 1 (2024): 012070. http://dx.doi.org/10.1088/1742-6596/2808/1/012070.

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Abstract In order to obtain the material model parameters for numerical simulation of the ballistic performance of high nitrogen austenitic stainless steel (HNASS) perforated armour, the static and dynamic mechanical properties and material fracture experiments of HNASS have been carried out. Parameters for the Johnson-Cook constitutive and failure model were then adjusted based on the experimental findings. The penetration process of perforated armour against 12.7 mm armour-piercing incendiary shells (API) was simulated by AUTODYN software and the simulation results were compared with the bal

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18

Xu, Xing Chun, Xin Bao Gao, and Bo Bo Zhao. "Dynamics Simulation of Particles of a Smoke Generator Based on SPH Method." Applied Mechanics and Materials 723 (January 2015): 176–80. http://dx.doi.org/10.4028/www.scientific.net/amm.723.176.

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With the increasingly wider use of smoke in informationized warfare, the evaluation of combat effectiveness has become a new research focus in the realm. Hence, there is a need to investigate the dynamics regulation of smoke particles. In this paper, the authors construct a simulation model by analyzing the expanding process of initial smoke cloud. Further, the SPH method was employed in the dynamics simulation. The curves of velocity, displacement and pressure with time were presented after calculation in AUTODYN. The curves from the dynamics simulation show a good consistent when compared to

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19

Huang, Jun Qing, Wei Zhang, Xue Hui Yang, and Wen Yue Wang. "Techniques of Fragment Numerical Simulation of Armour-Piercing Warhead Penetrating Target Process Base on AUTODYN." Advanced Materials Research 466-467 (February 2012): 834–38. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.834.

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Needing to analyse fragment’s destructive effect for military researching purpose, it is produced after armour-piercing warhead penetrate target. How to reduce physical test expense and acquire believable researching result at the same time have been puzzled problems that must be solved as soon as possible. Discussing techniques of fragment produced in armour-piercing warhead penetration process with the way of numerical simulation based on AUTODYN, it is a program that analyses dynamics in this paper. Techniques mainly include the Lagrange, the SPH, the Lagrange combining with the SPH and the

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20

Soydan, Ali Murat, Bahadır Tunaboylu, Ahmed Galal Elsabagh, Abdul Kadir Sarı, and Recep Akdeniz. "Simulation and Experimental Tests of Ballistic Impact on Composite Laminate Armor." Advances in Materials Science and Engineering 2018 (August 23, 2018): 1–12. http://dx.doi.org/10.1155/2018/4696143.

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This paper presents the experimental testing and simulation results of ballistic impact tests on laminated armor samples that consist of three layers of different materials: fiber-cement, Kevlar fabric, and steel. In experimental tests, a 9 mm FMJ bullet was launched towards a 100 cm2 sample of the armor from the fiber-cement side. Ansys Workbench Explicit Dynamics and Ansys AUTODYN 3D were used to model and simulate the ballistic impact. Experimental testing and simulation results were compared to analyze the behavior of composite armor designs, and a good agreement was observed.

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21

Taha, Ahmed K., Zhengguo Gao, and Dahai Huang. "The Numerical Investigation of Aluminum Foam-protected Reinforced Concrete Slabs under Blast Loading Using AUTODYN-3D." MATEC Web of Conferences 206 (2018): 01014. http://dx.doi.org/10.1051/matecconf/201820601014.

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Aluminum foam is a lightweight material with high energy absorption capacity. In this study A Nonlinear three-dimensional hydrocode numerical simulation was carried out using autodyn-3d, which is an extensive code dealing with explosion problems. In this simulation, a high explosive material (comp B) is blasted against several concrete panels. The model was first validated using experimental tests carried out by Chengqing and has shown good results. Several numerical tests were carried out to study two parameters that affect the deflection of reinforced concrete panels. The parameters included

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22

Lin, Li, Feng Fan, and Xu Dong Zhi. "Numerical Investigation on the Reticulated Domes Subjected to the Multi-Point Impact." Applied Mechanics and Materials 274 (January 2013): 523–26. http://dx.doi.org/10.4028/www.scientific.net/amm.274.523.

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In the present paper, FE model of the single-layer Kiewitt-8 reticulated domes with a span of 60m was built with using of ANSYS/AUTODYN. The dynamic response of the reticulated domes against the multi-point impact was investigated, where a special impactor was involved. Based on the simulation results, four damage modes were concluded，which are local damage, global collapse, local damage with punching plug, punching plug respectively. It was indicated that the initial kinetic energy of the impactor have a close correlation with the damage mode. Furthermore, the characteristics of dynamic respo

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23

Abdel-Kader, Mohamed. "Numerical predictions of the behaviour of plain concrete targets subjected to impact." International Journal of Protective Structures 9, no. 3 (2018): 313–46. http://dx.doi.org/10.1177/2041419618759109.

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One widely used model implemented in the hydrocode ANSYS Autodyn is the Riedel–Hiermaier–Thoma material model, which is used for the prediction of concrete behaviour under severe loading, such as blast and impact. In the Riedel–Hiermaier–Thoma model, parameters are adjusted to be a function of the compressive strength of specific concrete. This advantage enables occasional users (and those who cannot conduct experiments to determine all the required concrete parameters) to input only this parameter, while the rest is automatically calculated by default settings. This study is an attempt to cal

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24

Ding, Yu Qing, Wen Hui Tang, Xian Wen Ran, and Xin Xu. "Numerical Simulation of Small-Scale Explosion in Dry Sand." Advanced Materials Research 705 (June 2013): 110–14. http://dx.doi.org/10.4028/www.scientific.net/amr.705.110.

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Numerical simulation of small-scale explosion in dry sand using two sand material models including the Sand model and the LA model were carried out in the present study. Three cases were considered which the depths of burial (DOB) of the explosive C4 charge were 0, 30 mm and 80 mm, respectively. The time arrival of the blast-wave front and the maximum overpressure of fixed measuring locations were studied using a two dimensional axisymmetric model in hydrocode ANSYS/AUTODYN. Furthermore, the crater diameters and the heights of detonation product cloud respect to the time were also studied by c

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25

Ma, Chuanlin, Xudong Lu, Xi Lu, and Fengjun Yin. "Damage Rule of Marine Isolator under Secondary Shock Vibration." Journal of Physics: Conference Series 2528, no. 1 (2023): 012027. http://dx.doi.org/10.1088/1742-6596/2528/1/012027.

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Abstract To study the damage of the shock vibration generated by the ship hull to the internal equipment of the ship under the secondary explosion impact, a three-dimensional simulation model of the BE rubber isolator was established. The signal of the impact vibration load was loaded by the AUTODYN software. And the relationship between the damage of the isolator under the primary vibration impact and the frequency, amplitude, and attenuation of the loading signal was found. It is revealed that the damage law curve of the isolator under the secondary shock vibration conforms to a rational fun

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26

Wang, Y. Z., and K. Chen. "Hypersonic target interception based on short-range damage estimation." Journal of Physics: Conference Series 2478, no. 10 (2023): 102007. http://dx.doi.org/10.1088/1742-6596/2478/10/102007.

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Abstract Aiming at the interception problem of hypersonic target end phase, the flight interception simulation based on semi-active radar guidance is firstly established, and a warhead based on fragment damage is designed. Secondly, research proposes an effective method of target damage and verifies the interception effect by simulation. AUTODYN was used to establish the 3D finite element model based on the nonlinear flight dynamics model, to simulate the damage process and fragmentation dispersion. In this paper, the probability of success of missile interception is estimated by using conditi

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27

Shlyk, Sergii. "Research of ANSYS Autodyn capabilities in evaluating the landmine blast resistance of specialized armored vehicles." Technology audit and production reserves 3, no. 1(59) (2021): 6–15. http://dx.doi.org/10.15587/2706-5448.2021.235397.

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The object of research is the processes of pulse explosive loading in an explicit formulation for simulation of complex nonlinear dynamics of solids, gases, and their interactions. One of the most problematic areas of modern studies of nonlinear dynamic loads of materials using a numerical analysis is that such studies usually do not take into account the characteristic transition of the stationary deformation zone of the loaded material to the unsteady one and the front pressure and shockwave velocity variation by time. The work is aimed at developing a mathematical model of a pulsed load of

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28

Lashko, Ye, O. Chencheva, S. Sukach, S. Shlyk, S. Gerashchenko, and V. Diachenko. "APPLICATION OF THE TECHNOLOGY OF IMPULSE PROCESSING OF METALS FOR ARMOR PROTECTION OF SPECIALIZED VEHICLES." Naukovyi visnyk Donetskoho natsionalnoho tekhnichnoho universytetu, no. 1-2 (2022): 73–85. http://dx.doi.org/10.31474/2415-7902-2022-1(8)-2(9)-73-85.

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Purpose. Increasing the technical and economic indicators of the technology of impulse processing of metals and means of their diagnostics based on the development of the theoretical foundations of shape change under the impulse impact and the calculation of power parameters. Methodology. Numerical simulation of explosive loading of a plate made of Quardian 500 steel was performed in the Ansys AUTODYN system using a description of the properties of the material subjected to impulse impact and an iterative procedure. The calculation system included atmospheric air, an explosive charge (9.9 kg o

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Pei, Shan Bao, and Rong Zhong Liu. "Research on Air-Structure Coupling Characteristics of Sounding Board." Advanced Materials Research 308-310 (August 2011): 1074–79. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.1074.

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According to the characteristics of the shape of sounding board, the structure is immersed in gunpowder pulsation flow, the virtual mass method can be used to research on sounding board. The 3-dimensional element is used to discretize the sounding board and its surrounding air, the gas is coupled with the structure directly by the gas mass matrix. The coupling motion equation model of the sounding board and its surrounding air can be derived.The coupling modal of the sounding board system is calculated by using the software of ansys, and the data of gunpowder explosion pressure pulsation is ob

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Liu, Hua Ning, Yu Zheng, Jian Bo Liu, and Wen Bin Li. "The Effect of Tube Materials on Metal Jet Initiating the Confined Composition B." Advanced Materials Research 1014 (July 2014): 175–79. http://dx.doi.org/10.4028/www.scientific.net/amr.1014.175.

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The implementation and validation of a numerical model of the confined Composition B initiated by a metal jet has been studied by AUTODYN-2D. Two different tube thicknesses were used representing strong and weak confinement initiating system. In another contrast, various materials such as Nylon, St45 and Tungsten alloy were adopted to investigate the influence of tube yield stress on the confined explosives initiation behaviour. The results show that, in both cases, the confined explosive is always more likely to be initiated than bare explosive, and the explosive initiation probability increa

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Liu, Xue, and Qing Ming Zhang. "Numerical Study on Characteristics Shock Initiation of Double-Shell Charges by Hypervelocity Impact." Advanced Materials Research 284-286 (July 2011): 2049–52. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.2049.

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Response of shock initiation of cast TNT charges with double-shell casing impacted by hypervelocity fragment was studied using the non-linear dynamics software AUTODYN. The purpose of the study is to gain insight into the physical phenomena underlying debris cloud impacts, and to develop an equation that predicts critical fragment velocity at which a fragment must travel to cause initiation. First, strength model, reaction rate equation and equation of state of materials are briefly described. Second, the threshold law of shock-induced initiation of cast TNT with double-shell casings was obtai

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Bogosian, David, and Bence Gerber. "Analytical Predictions of Fragment Penetration through Hollow Concrete Masonry Units." Shock and Vibration 15, no. 1 (2008): 61–70. http://dx.doi.org/10.1155/2008/586876.

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Modeling steel casing fragment impacts on hollow CMU poses some problems, since the fragments will typically penetrate through the front face and may also penetrate the back face. Techniques are needed for predicting (a) the size of the hole created by the penetration, (b) the size of the annular region of damaged concrete around the hole, and (c) the residual velocity of the fragment. A series of calculations using the AUTODYN code were performed to investigate the accuracy and reliability of the model. The model uses the smooth particle hydrodynamics (SPH) approach to represent the CMU. A va

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Muthusamy, S., and A. Arulmurugu. "Computational of Orthogonal Metal Cutting Process Using Smooth Particle Hydrodynamics." Applied Mechanics and Materials 867 (July 2017): 119–26. http://dx.doi.org/10.4028/www.scientific.net/amm.867.119.

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In modern years, simulating metal cutting process used in Finite element method (FEM). The cutting force is used to identify the excessive friction of machining interface and worn out tool. Optimization of machining parameters are used to maintain the precision of the component, power consumption minimized and tool wear reduced. The current project presents the simulated Finite Element SPH Model used for predict the cutting force and associate with experimental confirmation while turning the AA2219-TiB2/ZrB2 metal matrix composites (MMC). Smooth Particle Hydrodynamics (SPH) machining simulatio

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Toy, Ahmet Tuğrul, and Barış Sevim. "Structural response of multi-story building subjected to blast load." Journal of Structural Engineering & Applied Mechanics 5, no. 1 (2022): 13–21. http://dx.doi.org/10.31462/jseam.2022.01013021.

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This paper aims to present blasting effects on the structural response of a 5-story building considering its columns, shear walls, beams, slabs, raft foundation, masonry walls, and windows. A building with a geometry of 12×20 m in plan and a height of 15.5 m is considered. The three-dimensional finite element model of the building is constituted using ANSYS Workbench and blasting analysis is explicitly performed in ANSYS AUTODYN. TNT is exploded to give blasting effects on the structure. The duration of the explosion is set to 3-msec. Stresses, displacements, material status, and pressures due

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Yang, Li, Qian Li Zhao, Xiao Dong Chai, and Xiao Ying Ma. "Research on the Regular between Concentration of Superfine Powder Extinguishing Agent Explosion Scatter and Fire-Extinguishing Ability." Advanced Materials Research 887-888 (February 2014): 1017–23. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.1017.

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In order to improve high-rise fire-extinguishing efficiency and reduce fire-extinguishing cost, a mathematical model of explosion and dispersion of extinguishing agent was built by using AUTODYN on the basis of isentropic expansion law of detonation outcome and theory of hydrodynamics to simulate the dispensing process of high-rise superfine powder fire-extinguishing agent. Different locations on the high-rise fire-extinguishing bomb were selected to be Gauss points and then were analyzed, all calculating results were contrasted finally. A method used for evaluating fire-extinguishing efficien

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Zhao, Guangming, Chongyan Liu, Cheng Pan, and Xiangrui Meng. "Researches on Crack Propagation of the Two Filled Noncoalescent Coplanar Flaws under the High Strain Rate Loading by means of AUTODYN-Based Simulation." Geofluids 2020 (November 24, 2020): 1–10. http://dx.doi.org/10.1155/2020/8875734.

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To study the influence of fillings on rock failure. By turning to the Drucker-Prager strength model and cumulative damage criteria, investigations are made, with the nonlinear AUTODYN software, into crack propagation behaviors in crack-filled and unfilled specimens under uniaxial dynamic loading. Under investigations are crack initiation position, sequence and angle, and coalescence mode. According to the mode of propagation and coalescence, cracks are divided into three types, i.e., the tensile wing, the antiwing, and the horsetail. The simulation results show that under uniaxial dynamic load

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Li, Gang, Li Da Zhu, Jian Yu Yang, and Wan Shan Wang. "Numerical Simulation of Rock Fragmentation Process for TBM Cutters Based on Three-Dimensional Dynamic Fracturing Method." Advanced Materials Research 472-475 (February 2012): 2033–36. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.2033.

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The rock breakage process is the interaction process between TBM and rock mass, which is affected by TBM specifications, such as thrust force, cutter tip width and profile, cutter spacing, RPM, and torque, and rock mass properties mainly including rock material strength, rock brittleness, joint spacing and orientation. In this study, based on the systematic study of the existed rock constitutive model achievements and introduction of rock breaking mechanism, main failure mode of rock in the breaking process of disc cutter is added and revised in order to meet the actual situation. The method o

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COSTA NETO, M. L., and G. N. DOZ. "A numerical analysis of a concrete slab breaching using high explosives." Revista IBRACON de Estruturas e Materiais 12, no. 1 (2019): 122–38. http://dx.doi.org/10.1590/s1983-41952019000100010.

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Abstract Explosive breaching of walls, demolition of buildings with high structural robustness and non-programmed explosions may be extremely dangerous, the high risk of these events demands continuous researches to support the development of optimized constructive techniques and design. In this context, this work presents a numerical study of the explosive breaching of concrete wall using an optimized contact explosive charge with cilindrical shape, the CFD software Autodyn ® Ansys was used. The results were evaluated in terms of damage pattern of the concrete slab, where was considered the c

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Mamatha, T. G., A. Patnaik, S. Biswas, and P. Kumar. "Finite element modelling and development of SiC-filled ZA-27 alloy composites in erosive wear environment: a comparative analysis." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 225, no. 11 (2011): 1106–20. http://dx.doi.org/10.1177/1350650111412706.

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The erosion wear resistance of silicon carbide (SiC) filled Zn–Al alloys is determined insolid particle erosive wear test rig under five different operation conditions such as impact velocity, SiC content, erodent temperature, impingement angle, and erodent size. This study evaluates the influence of independent parameters on erosive wear behaviour of composites. A design of experiments L16 orthogonal array design is conducted in a controlled way and a regression model is developed in order to verify the experimental results. This article tries to develop finite element simulation model (ANSYS

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Zhou, X., J. B. Men, M. Li, and W. Jin. "Numerical study on breakage of high energy beam controlled projectile with random defects." Journal of Physics: Conference Series 2891, no. 4 (2024): 042012. https://doi.org/10.1088/1742-6596/2891/4/042012.

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Abstract Based on the rapid modeling of high energy beam controlled projectiles, controlled area data processing and model secondary development, the controlled projectile model characterization method with random defects can simulate the internal formation of the projectile after the high energy beam scans it by using random numbers. To solve the defects, AUTODYN-3D software was used to conduct numerical simulation analysis of the explosion drive and rupture process of typical projectiles. The results show that the defects distribution has little impact on the initial velocity of fragments fo

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Jin, Wen, JianBin Men, JianWei Jiang, and HaiFeng Li. "Study on Impact Response of Typical Powder in Confined Space." Journal of Physics: Conference Series 2478, no. 7 (2023): 072061. http://dx.doi.org/10.1088/1742-6596/2478/7/072061.

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Abstract A novel experiment combined with simulation method was developed to investigate the impact response of the powder which was put into a submunition. The powder’s material model parameter was determined by powder mechanical test. Machete hammer test platform was built to apply 20kG~30kG load to the submunition. The submunition was recycled and the powder state was observed after impacting by the Machete hammer. What’s more, nonlinear dynamics analysis software (AUTODYN) was applied to clarify the impact response and density distribution process of the powder. A verified ideal model was

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Zhao, Xiao Xu, and Ya Dong Gong. "Research on the Load on Cutter Head of Hard Rock Tunnel Boring Machine." Applied Mechanics and Materials 684 (October 2014): 303–7. http://dx.doi.org/10.4028/www.scientific.net/amm.684.303.

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Study on the load exerted on cutter head is very useful for the design and performance prediction of hard rock tunnel boring machines. A composite model based on smoothed particle hydrodynamics and finite element method was carried out using AUTODYN software to study the rock fragmentation mechanism of constant cross-section disk cutters in cutter head. The normal force, rolling force and side force on the disk cutters with different cutter radius were researched in the numerical simulation study. The results were verified by historical literature data. To obtain the distribution of the forces

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Dou, Yipu, Zhengfeng Liang, and Jianhao Dou. "Numerical simulation study on the influence of the variation rate of the liner thickness on the damage performance of shaped charge." Journal of Physics: Conference Series 3021, no. 1 (2025): 012064. https://doi.org/10.1088/1742-6596/3021/1/012064.

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Abstract To investigate the impact of the variation rate of the thickness of the conical liner on the damage performance of shaped charge jet during its formation process, using the numerical simulation software Autodyn to construct a numerical model for conducting simulation computations. Subsequently, the corresponding numerical simulation results were acquired, and parameters such as velocity, mass, and penetration depth in the numerical simulation outcomes of shaped charge jet formed from liners with different thickness variation rates were analyzed. The findings reveal that the velocity a

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Grujicic, M., B. Pandurangan, J. D. Summers, B. A. Cheeseman, W. N. Roy, and R. R. Skaggs. "Application of the Modified Compaction Material Model to the Analysis of Landmine Detonation in Soil with Various Degrees of Water Saturation." Shock and Vibration 15, no. 1 (2008): 79–99. http://dx.doi.org/10.1155/2008/765494.

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A series of transient non-linear dynamics computational analyses of the explosion phenomena accompanying the detonation of a 100g C4 mine buried in sand to different depths is carried out using the software package AUTODYN. The mechanical response of sand under high deformation-rate conditions has been represented using the modified compaction material model developed in our recent work [1]. While the mechanical response of the other attendant materials (air, gaseous-detonation products and AISI 1006 mild steel) is accounted for using the material models available in literature. The results ob

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Han, Jing, Hua Wang, and Zhi Fei Wang. "Numerical Simulations of SFRC Projectile Penetrating into Limestone Using FEM/SPH Coupling Method." Applied Mechanics and Materials 217-219 (November 2012): 51–54. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.51.

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The method of using efficient inert projectile with highly efficient propulsion has great potential for the rapid and efficient excavation of rocks and ore in both surface and underground. In this paper, a series of numerical experiments were performed to simulate rock fragmentation resulted from steel fiber reinforced concrete (SFRC) projectile by using hydrodynamic finite element code AUTODYN. The fully coupled method was been adopted, in which the limestone, molded using Lagrangian mesh, is coupled to SFRC projectile molded using smoothed particle hydrodynamics (SPH) method. The numerical m

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Taha, Ahmed K., Zhengguo Gao, Dahai Huang, and M. S. Zahran. "Numerical investigation of a new structural configuration of a concrete barrier wall under the effect of blast loads." International Journal of Advanced Structural Engineering 11, S1 (2019): 19–34. http://dx.doi.org/10.1007/s40091-019-00252-8.

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AbstractIn this study, a non-linear three-dimensional hydrocode numerical simulation was carried out using AUTODYN-3D, which is an extensive code dealing with explosion problems. A high explosive material (comp-B) is blasted against several concrete wall barriers. The model was first validated using referenced experimental tests and has shown good results. Several numerical models were carried out to study the effect of changing the shape of wall barrier from flat to convex curve and concave curve, and also investigated the effect of changing the angle of curvature. The results showed that cha

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Wang, Haifu, Jianguang Xiao, Yuanfeng Zheng, and Qingbo Yu. "Failure and Ejection Behavior of Concrete Materials under Internal Blast." Shock and Vibration 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/8409532.

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In order to investigate the failure and ejection behavior of concrete materials under internal blast, the default Riedel-Hiermaier-Thoma (RHT) concrete model in AUTODYN and a meshfree processor called SPH are employed in this numerical simulation. It is shown that the failure mechanisms are significantly different in these damaged zones. Crushed zone is caused by shear failure while fractured zone is induced by tensile failure, and spalled zone is formed by a combination of shear and tensile failure. In addition, the ejection velocity distribution of the fragmented concrete mass on free surfac

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Shuai, Ma, Xue Hao, Bian Chenxi, et al. "Simulation Study on Adjustable Structural Shaped Charge Water Jet Forming and Penetrating Improvised Explosive Devices." Journal of Physics: Conference Series 2891, no. 9 (2024): 092003. https://doi.org/10.1088/1742-6596/2891/9/092003.

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Abstract To address the need for rapid and safe disposal of improvised explosive devices during bomb disposal operations, a method utilizing a structurally adjustable shaped water jet for the destruction of improvised explosive devices is proposed. Finite element analysis software AUTODYN is employed to develop a simulation model to study the formation process of the shaped water jet. To further explore the influence of structural parameters of the shaped charge on the jet head velocity and effective jet length, an orthogonal optimization design method is utilized. The water thickness and cone

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Bohanek, Vječislav, Barbara Štimac Tumara, Chan Hay Yee Serene, and Muhamed Sućeska. "Shock Initiation and Propagation of Detonation in ANFO." Energies 16, no. 4 (2023): 1744. http://dx.doi.org/10.3390/en16041744.

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The ammonium nitrate (AN) and fuel oil (FO) mixture known as ANFO is a typical representative of non-ideal explosives. In contrast to ideal explosives, the detonation behavior of ANFO exhibits a strong dependence on charge diameter, existence, and properties of confinement, with a large failure diameter and long distance required to establish steady-state detonation. In this study shock initiation and propagation of detonation in ANFO were studied experimentally by determining the detonation velocity at different distances from the initiation point, as well as by numerical modeling using AUTOD

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Xie, Zhi-yuan, Yan-xin Wang, Rui-ze Xu, and Jian-guang Xiao. "Research on ignition and reaction characteristic of PTFE-based reactive materials." Journal of Physics: Conference Series 2478, no. 3 (2023): 032094. http://dx.doi.org/10.1088/1742-6596/2478/3/032094.

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Abstract In order to study the ignition characteristic of PTFE-based reactive materials (RMs), Al/W/PTFE RMs with different W powder contents were prepared and split Hopkinson pressure bar (SHPB) test was carried out under different loading conditions. The temperature rise of three RMs were calculated theoretically. The material model parameters of the three formulations were calculated by using the mixture equation of state theory and Johnson-cook model, and the impact process was numerically simulated by using AUTODYN dynamics software. The results showed that the Al/PTFE (26.5/73.5) formula

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