Propellants, Explosives, Pyrotechnics最新文献

{"title":"Future Articles: Prop., Explos., Pyrotech. {{IID:next}}/{{CRYR.YEAR:ifnext}}","authors":"","doi":"10.1002/prep.202480399","DOIUrl":"https://doi.org/10.1002/prep.202480399","url":null,"abstract":"","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cover Picture: (Prop., Explos., Pyrotech. 3/2024)","authors":"","doi":"10.1002/prep.202480301","DOIUrl":"https://doi.org/10.1002/prep.202480301","url":null,"abstract":"","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contents: Prop., Explos., Pyrotech. 3/2024","authors":"","doi":"10.1002/prep.202480311","DOIUrl":"https://doi.org/10.1002/prep.202480311","url":null,"abstract":"","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Forthcoming Meetings: Prop., Explos., Pyrotech. 3/2024","authors":"","doi":"10.1002/prep.202480398","DOIUrl":"https://doi.org/10.1002/prep.202480398","url":null,"abstract":"","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140166925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Memoriam James Callaway 1968 to 2024","authors":"","doi":"10.1002/prep.202400047","DOIUrl":"https://doi.org/10.1002/prep.202400047","url":null,"abstract":"<div>\u0000<figure>\u0000<div><picture>\u0000<source media=\"(min-width: 1650px)\" srcset=\"/cms/asset/5b0a6009-1d6a-4164-a3fc-266a34561b12/prep202400047-gra-0001-m.jpg\"/><img alt=\"image\" data-lg-src=\"/cms/asset/5b0a6009-1d6a-4164-a3fc-266a34561b12/prep202400047-gra-0001-m.jpg\" loading=\"lazy\" src=\"/cms/asset/e3d8b23b-984c-47ac-81bc-3b6826ec7a77/prep202400047-gra-0001-m.png\" title=\"image\"/></picture><p></p>\u0000</div>\u0000</figure>\u0000</div>\u0000<p>James (Jim) Callaway was a pyrotechnician who passed away in January 2024. Most of his career was with the United Kingdom's Ministry of Defence (MOD) where his research focused on countermeasures, and on pyrotechnic formulation, lifetime and defect investigations. Jim was well known in the pyrotechnics community publishing at International Pyrotechnic Society seminars (IPS) on a wide range of topics and often acted as organiser and session chair. In 2005, Jim was a member of the team that received a prestigious TTCP (The Technical Cooperation Programme) award for work on Red Phosphorus, its characterisation and possible replacement. The work was subsequently published <span>1</span>.</p>\u0000<p>During his career Jim registered several patents on infra-red emitting decoy flares. He later worked for Adam Cumming as the pyrotechnic focus for advice and assessment for MOD. This included devising and assessing United Kingdom research programmes as well leading several international collaborations in this area across the world. Jim had an insatiable curiosity about his subject and also the work of others. This also extended to culture and food!</p>\u0000<p>Jim's later career in central MOD developed this interest in ensuring that up-to-date knowledge was available to support strategy and work programmes.</p>\u0000<p>His interest in developing people and research meant he played an active part in the IPS where in 2004 Jim became a trustee of the Frank Carver Bursary. This fund, which was established following the 1989 IPS Conference in Jersey, has supported more than thirty early-career scientists enabling them to attend IPS meetings. It was and remains a critical support to the technology.</p>\u0000<p>While that support will continue building on what he achieved, Jim will be missed by all that knew him.</p>\u0000<p> </p>\u0000<p><b>Adam Cumming</b></p>\u0000<p><i>Formerly Dstl and now Hon Professor University of Edinburgh</i></p>\u0000<p> </p>\u0000<p><b>Trevor Griffiths</b></p>\u0000<p><i>Formerly QinetiQ</i></p>","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140167038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal chemistry and decomposition behaviors of energetic materials with trimerizing furoxan skeleton","authors":"Jing Zhou, Meng Huang, Junlin Zhang, Lianjie Zhai, Yilin Cao, Xiaocong Wang, Lili Qiu, Bozhou Wang, Zihui Meng","doi":"10.1002/prep.202300267","DOIUrl":"https://doi.org/10.1002/prep.202300267","url":null,"abstract":"Trimerizing furoxans are ideal molecular skeletons for the construction of high energetic substances due to their compact structures and high enthalpy of formations. To explore and compare the thermal behaviors of energetic materials with tandem trimerizing furoxan molecular skeleton, we reported the first systematic research on the thermochemical behaviors and decomposition mechanism of 3,4‐bis(3‐fluorodinitromethylfuroxan‐4‐yl)furoxan (BFTF), 3,4‐bis(3‐cyanofurazan)furazan oxide (BCTFO) and benzotrifuroxan (BTF). According to the research results of the DSC‐TG experiments, both the substituted furoxan based energetic compounds (BCTFO and BFTF) exhibited low melting points and complicated thermal decomposition behaviors around 240 °C, while the melting point of unsubstituted furoxan (BTF) was much higher. Their detailed decomposition mechanisms were proposed based on the experimental results through tandem techniques including in‐situ FTIR spectroscopy method and DSC‐TG‐FTIR‐MS quadruple technology, which indicated that the cleavage of substituent would trigger the decompositions of BFTF and the decomposition of trimerizing furoxan skeletons almost synchronous occurrence with substituents in BCTFO. The self‐oxidation‐reduction of the linear and annular trimerizing furoxans lead to similar decomposition fragmented small molecule products.","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk assessment of war wrecks – a comprehensive approach investigating four wrecks containing munitions in the German Bight/North Sea","authors":"Sven Bergmann, Matthias Brenner, Jennifer Susanne Strehse, Tobias Hartwig Bünning, Edmund Maser, Philipp Grassel, David Heuskin, David Brandt, Marco Berger, Simon van der Wulp, Mathew Skellhorn, Polly Hill, Sven Van Haelst, Maarten De Rijcke, Uwe Wichert","doi":"10.1002/prep.202300322","DOIUrl":"https://doi.org/10.1002/prep.202300322","url":null,"abstract":"Shipwrecks and dumped munition continue to be a major hazard, both in the North Sea but also on a global scale. Research within the EU Interreg project North Sea Wrecks (NSW), in cooperation with the German Aerospace Centre, Institute for the Protection of Maritime Infrastructures (DLR), is generating new insights into the status of wrecks, the potential leakage of pollutants from remaining munitions loads and the effects of contamination on exposed marine organisms in the North Sea environment. Further, historical documents are generated from archives to describe ship's history and sinking scenario. These historical findings were compared to models and images of the visual inspections of the wrecks. Further, samples of water, sediment and organisms are being analysed for traces of explosives. Combining the results of these different fields of research allows for a better understanding of the environmental risks deriving from these wrecks. This process is shown below by focusing on the wreck of the German light cruiser SMS MAINZ, which sank in 1914. Data were compared to three additional wrecks situated also within the southern German Bight. Available data about the wrecks were preliminary assessed using a wreck risk model. Finally, wrecks were ranked according to their potential environmental risk.","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deterioration study of sea‐dumped munitions in the eastern Scheldt","authors":"J. H. den Otter, M. C. Olde, W. van de Steeg, A. W. F. Volker, A. E. D. M. van der Heijden","doi":"10.1002/prep.202300302","DOIUrl":"https://doi.org/10.1002/prep.202300302","url":null,"abstract":"Vast amounts of surplus ammunition were dumped in surface waters around the world. After degradation and corrosion of shells, both metal compounds and the energetic contents of the ammunition end up in the environment. These compounds or their metabolites are toxic to the environment and human health. Also in the Netherlands, ammunition was dumped over a period of several decades after World War II at several marine sites. One of these dumpsites is the Eastern Scheldt near Zierikzee. During the monitoring campaign of the ammunition dumpsite in the Eastern Scheldt in 2020, ammunition items were surfaced. The corrosion and presence of leak pathways of sea‐dumped munition were studied for a selection of munition items after being more than 50 years on the seabed in the Eastern Scheldt. For some of the items an estimated uniform corrosion rate of 0.01–0.03 mm/year was determined. Furthermore, a non‐destructive inspection technique based on an ultrasonic method was applied to measure the casing thickness profile. The obtained results corresponded well with the manually determined thickness profiles. The ultrasound method opens the possibility to measure the casing thickness of even intact munition items, thus avoiding the dissection of the munition item and removal of the explosive fill.","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical simulation of the effect of multiple factors on the ignition process of a solid rocket motor","authors":"Zexu Li, Jianzhong Liu, Wenke Zhang, Zhenwei Ye, Bin Yang","doi":"10.1002/prep.202300198","DOIUrl":"https://doi.org/10.1002/prep.202300198","url":null,"abstract":"With the continuous development of manned space technology, higher requirements have been proposed for solid rocket motors. The ignition process of solid rocket motors affects the reliability, stability and safety of their operation. The ignition powder, cover opening pressure and grain length‐diameter ratio are the main factors affecting the ignition process. Therefore, the influence of different factors on the ignition process of solid rocket motors is studied with numerical simulations. Based on the finite volume method, the ignition process of a solid rocket motor is modelled and experimentally verified. Then, the pressure and temperature distribution characteristics during the ignition delay, flame propagation and gas filling times are analysed. Finally, the effects of different ignition powders, cover opening pressures and length‐diameter ratios on the ignition process are compared and analysed. The results show that the model has high prediction accuracy. When the ignition powder is 6 g, the maximum combustion temperature of solid rocket motor increases from 2590 K to 2620 K between 0.1 ms and 0.44 ms. Between 0.44 ms and 3.18 ms, intermittent flame propagation and pressure oscillations occur. In the gas filling time, the flow field gradually stabilizes. Increasing the ignition powder mass is beneficial to the ignition process, but the disadvantages of pressure oscillations should be considered. Increasing the cover opening pressure enhances the ignition process, while increasing the length‐diameter ratio increases the ignition pressure building time. The study results provide technical support for the structural design of solid rocket motors.","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automatic Optimization of JWL‐Miller parameters of HMX‐based aluminized explosive based on genetic algorithm","authors":"Xing‐Long Li, Ke‐Quan Chen, Heng‐Jian Huang, Sha Yang, Qing‐Guan Song, Wei Cao, Zhong‐Hua Lu, Chao Tian, Cheng Hua","doi":"10.1002/prep.202300195","DOIUrl":"https://doi.org/10.1002/prep.202300195","url":null,"abstract":"The calibration of JWL‐Miller equation of state (EOS) parameters for aluminized explosive is a cumbersome but important work in explosive evaluation. Manual calibration is usually adopted while the work may be tedious and the optimal results may be unachievable. An automatic calibrating method was established to optimize this procedure based on genetic algorithm program and finite element software. Optimal JWL‐Miller EOS parameters were achieved by iterative calculation calibrating with cylinder test results and underwater‐explosion experiment results. Cylinder test results were adopted to illustrate the initial phase of explosion, and underwater explosion experiments were conducted to calibrating the Miller term of the equation of state. The results showed that the error between cylinder test and simulation result was less than 1 %, the error of underwater explosion impulse between test and simulation results was less than 3.73 %. The optimized parameters of JWL‐Miller EOS will be useful in the numerical simulation research of aluminized explosives.","PeriodicalId":20800,"journal":{"name":"Propellants, Explosives, Pyrotechnics","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}