Proceedings of the 32nd International Symposium on Ballistics最新文献_第3页

SIMULATION RESEARCH ON FLOW FIELD DISTRIBUTION IN ARTILLERY TURRET UNDER THE SIMULTANEOUS ACTION OF EXHAUST FAN AND BLOWER 火炮炮塔排风机和鼓风机同时作用下流场分布的仿真研究

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36090

N. Zhao, Jiawei Di, JIAN-PING Zhuo

引用次数: 0

EFFECT OF WEAPON SOUND SUPPRESSORS ON DISPERSION: AN EXPLANATION 武器消声器对扩散的影响:解释

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36107

D. Corriveau, C. Rabbath, N. Hamel

引用次数: 0

MEASUREMENT OF DYNAMIC RESPONSE OF SS316 UNDER HIGH STRAIN RATE LOADING 高应变率载荷下ss316的动态响应测量

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36070

R. Kumari, P. P. Sharma, Pankaj Sajan, J. P. Singh

{"title":"MEASUREMENT OF DYNAMIC RESPONSE OF SS316 UNDER HIGH STRAIN RATE LOADING","authors":"R. Kumari, P. P. Sharma, Pankaj Sajan, J. P. Singh","doi":"10.12783/ballistics22/36070","DOIUrl":"https://doi.org/10.12783/ballistics22/36070","url":null,"abstract":"The paper discusses the experimental methods and techniques to measure the dynamic response of austenitic stainless steel SS316 subjected to the intense shock load of high explosive. The strains experienced by the material are transient in nature and last for a fraction of second with peak strain value of 15%. For experimentation, the cylindrical structures of austenitic stainless steel SS316 in various diameter 200mm-400mm, height 200mm-800mm & thickness 1-1.2mm were arranged by IGCAR . These cylinders were filled with water and rigidly held from both ends in a counter weight foundation. The experiments were conducted by detonating the explosive charge at the center of these water filled cylinders. The quantity of explosive used in trials varies from 4grams to 50grams. The response of the cylindrical structure under intense load of high explosive charge was measured by using post yield strain gages having strain limit of 15 %. The TML make post yield strain gauges model No.YFLA-10 were pasted on the cylinder in axial and shear directions to measure the dynamic axial and hoop strains. The strain gauges used were made of constantan material having 120Ω resistance, 10mm length and gauge factor of 2.1. These gauges were pasted on the cylindrical structure with the help of cynoacrylite (CN). As the strain generated in the material under explosive load is dynamic in nature, so TML make modular high bandwidth amplifier each having bandwidth of 200khz were used to condition the outputs of strain gauges. The conditioned outputs from strain gauges were recorded using data acquisition system having bandwidth greater than 200 kHz. High speed photography has also been used to capture the transient deformation of the cylimderical structure during the detonation.. The acquired strain data in instrumented trials has been used in determining the strain limit of austenitic stainless steel SS316 under high strain rate in explosive environment.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125920924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ENHANCED DAMAGE EFFECT OF REACTIVE FRAGMENTS OBLIQUE PENETRATING TITANIUM ALLOY PLATES 活性破片斜穿钛合金板增强损伤效果

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36166

J. Xiang, Tao Sun, Hai-fu Wang

引用次数: 0

ELECTROMAGNETIC RAIL GUN FRAGMENT ACCELERATOR CONCEPT DEMONSTRATOR 电磁轨道炮破片加速器概念演示

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36045

Jose Sequeira

{"title":"ELECTROMAGNETIC RAIL GUN FRAGMENT ACCELERATOR CONCEPT DEMONSTRATOR","authors":"Jose Sequeira","doi":"10.12783/ballistics22/36045","DOIUrl":"https://doi.org/10.12783/ballistics22/36045","url":null,"abstract":"The future objective of this study is to establish testing techniques to evaluate the penetrating ability of shrapnel fragments produced from fragmenting warheads. Difficult to capture data points such as residual velocity and mass are required to, individually, characterise single fragment penetrability. One of the more challenging aspects of penetrability testing is the ability to study individual fragment impact at speeds exceeding 2 km/s. Fragment acceleration by means of an electromagnetic (EM) rail gun seems to be well suited to test weapon applications and is expected to be the future system of choice for high velocity fragment impact analysis. A concept-demonstrator rail gun (6000J, Ma MV 320 m/s) and internal ballistic model is presented in this study establishing technology toward the future development of a full-scale EM fragment accelerator test system. This paper presents the findings and challenges encountered during the development and testing of small-scale electromagnetic rail gun. In particular, findings are presented onunexpectedforward plasma escape likely resulting from excessive joule heating in the armature-railinjection region.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115270151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

BENEFITS OF TAKING INTO ACCOUNT THE STATISTICAL VARIATION OF WARHEAD EFFECTS IN V/L SIMULATIONS 在v / l模拟中考虑战斗部效应统计变化的好处

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36114

Cédric Archambaud

引用次数: 0

NUMERICAL AND EXPERIMENTAL INVESTIGATIONS ON BEHIND ARMOR EFFECTS BY SHAPED CHARGES 聚能装药后装甲效应的数值与实验研究

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36075

S. Göhler, F. Theile, T. Peun, A. Liersch, M. Graswald

{"title":"NUMERICAL AND EXPERIMENTAL INVESTIGATIONS ON BEHIND ARMOR EFFECTS BY SHAPED CHARGES","authors":"S. Göhler, F. Theile, T. Peun, A. Liersch, M. Graswald","doi":"10.12783/ballistics22/36075","DOIUrl":"https://doi.org/10.12783/ballistics22/36075","url":null,"abstract":"The effects that occur after penetration of a vehicle armor are referred to as behind armor (BA)effects. These effects are often not taken into account in the performance description of shaped charges (SC). A total view of the performance of a SC offers the possibility to better describe them. For this purpose, a basic experimental concept was developed to characterize the effects. In addition, copper (Cu) and aluminum (Al) and their combination were chosen as liner material. Hydrocode SPEED simulations have been performed in 90 mm caliber, which serve as a basis for the design of the liners. For the production of the bimetallic liner, a Cu liner was coated with cold gas spraying using Al. First, jet penetration performance in mild steel and its velocity were measured. In the second part, the effects that occur behind the armor were examined in more detail. Pressure and temperature were measured in a specially designed pressure tube at different target strenghts (50 mm, 100 mm and 300 mm) and the residual performance was recorded. The same approach was used to characterize the fragments. After a series of 28 tests, it can be concluded that, in contrast to Cu, the Al liner has a measurably greater effect behind the armor. On the one hand, the measured temperature difference between the two liner (Cu; Al) was above 1000 deg C. On the other hand, as expected, the penetration performance of the Al liner amounts to 60% of the Cu liner. The evaluation of the witness plates shows that the BA effect of the Al liner is more powerful. It was shown that the fabrication of a bimetallic liner by cold gas spraying leads to a functional shaped charge. Furthermore, it was shown that the performance of the bimetallic liner lies generally between the respective values of the monometallic liner. In conclusion, it was demonstrated that the experimental setups provided the opportunity to investigate the individual characteristics of the respective shaped charges and to work out differences.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125295113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MESOSCALE MODELING OF BALLISTIC IMPACT ON PLAIN WEAVE COMPOSITE 平纹编织复合材料弹道冲击的中尺度模拟

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36182

C. Meyer, D. O'Brien, B. Haque, J. GILLESPIE, JR.

引用次数: 0

A METHOD FOR DIGITALLY RECONSTRUCTING PROJECTILE FRAGMENTATION PATTERNS IN GELATIN BLOCKS THAT REQUIRES MINIMAL DATA COLLECTION 一种数字化重建明胶块中弹丸破碎模式的方法，该方法需要最小的数据收集

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36183

Kenneth H. Hohnecker

引用次数: 0

FROM BENCH TO SHOOTING RANGE: CORRELATING BASE BLEED CHEMISTRY WITH THE BALLISTIC PERFORMANCE OF EXTENDED RANGE MUNITION 从试验台到射击场:底渗化学与增程弹药弹道性能的关系

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36134

M. F. Lemos, Ana Paula DA Silva, Priscila Simões Teixeira Amaral, Edson DA Silva Souza, Laurilio SILVA JUNIOR, R. Pinto, William Klinsmann DE Oliveira Ferreira, D. Chalhub, Gil Pinheiro, Leib Neubarth, R. Lucena, N. Mangiavacchi

引用次数: 0