Mitigation of Shock Waves in a Cylindrical Tunnel by Foam PDF Download
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Author: Grant W. Fondaw (CAPT, USA.)
Publisher:
ISBN:
Category : Foam
Languages : en
Pages : 210
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Book Description
Author: Grant W. Fondaw (CAPT, USA.)
Publisher:
ISBN:
Category : Foam
Languages : en
Pages : 210
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Book Description
This study investigated the effectiveness of foam linings in mitigating shock waves in tunnels. A polyurethane foam liner of varying density, crush strength and thickness was modeled inside a 1 meter radius tunnel and an explosion of 1.25 kg of plastic explosive was simulated. Using CTH, an Eulerian- Lagrangian hydrodynamics code from Sandia National Laboratories, the overpressures were computed and compared graphically to determine the effect of varying each foam parameter. The walls of the tunnel consisted of a perfectly reflecting boundary, and in some cases, a foam liner. Low density foam provided the most shock attenuation. with a 20 cm thick layer of 90% void (0. 1265 g/cm3) foam reducing the shock overpressure by 70% at 50 meters. The effects of foam thickness on the shock pressure varied with the distance from the explosion. The thicker foams raised the initial pressure near the explosion due to constriction of the tunnel area. However, the thicker layers reduced the shock faster. Varying the crush strength of the foam from 1 atm to 3 atm overpressure did not affect its ability to mitigate shock propagation in the tunnel. The results of this study strongly suggest that foam can mitigate shock waves significantly ... Shock, Shock mitigation, Foam, Explosions.
Author: Alon Gany
Publisher: Springer Nature
ISBN: 9811917744
Category : Science
Languages : en
Pages : 640
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Book Description
This book features selected papers presented at the 2021 International Conference on Development and Application of Carbon Nanomaterials in Energetic Materials. It discusses the latest progress in the field of advance carbon nanomaterials in energetic materials; including the structural design, theoretical calculation, synthesis, properties, and applications of carbon materials. It also presents the new technology and applications of advanced carbon nanomaterials in energetic materials. It can be used as a reference book for researchers in energetic materials and related fields. It is also be useful for undergraduates and postgraduates studying these topics.
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 1074
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Book Description
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1461519691
Category : Science
Languages : en
Pages : 426
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 38 (thesis year 1993) a total of 13,787 thesis titles from 22 Canadian and 164 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 38 reports theses submitted in 1993, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Author: Arun Shukla
Publisher: Springer Science & Business Media
ISBN: 1461472679
Category : Technology & Engineering
Languages : en
Pages : 368
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Book Description
Blast Mitigation: Experimental and Numerical Studies covers both experimental and numerical aspects of material and structural response to dynamic blast loads and its mitigation. The authors present the most up-to-date understanding from laboratory studies and computational analysis for researchers working in the field of blast loadings and their effect on material and structural failure, develop designs for lighter and highly efficient structural members for blast energy absorption, discuss vulnerability of underground structures, present methods for dampening blast overpressures, discuss structural post blast collapse and give attention to underwater explosion and implosion effects on submerged infrastructure and mitigation measures for this environment.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 840
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Book Description
Author: Samuel Sai-chak Lee
Publisher:
ISBN:
Category : Shock waves
Languages : en
Pages : 98
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Book Description
Author:
Publisher:
ISBN:
Category : Research
Languages : en
Pages : 1290
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Book Description
Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Author: Zongming Li
Publisher: CRC Press
ISBN: 1000835065
Category : Technology & Engineering
Languages : en
Pages : 778
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Book Description
Advances in Measurement Technology, Disaster Prevention and Mitigation collects papers resulting from the conference on Measurement Technology, Disaster Prevention and Mitigation (MTDPM 2022), Zhengzhou, China, 27–29 May, 2022. The primary goal is to promote research and developmental activities in measurement, disaster prevention and mitigation, and another goal is to promote scientific information interchange between scholars from the top universities, business associations, research centers and high-tech enterprises working all around the world. The conference conducts in-depth exchanges and discussions on relevant topics such as measurement, disaster prevention and mitigation, aiming to provide an academic and technical communication platform for scholars and engineers engaged in scientific research and engineering practice in the field of measurement application, measurement in civil engineering and disaster reduction. By sharing the research status of scientific research achievements and cutting-edge technologies, it helps scholars and engineers all over the world comprehend the academic development trend and broaden research ideas. So as to strengthen international academic research, academic topics exchange and discussion, and promote the industrialization cooperation of academic achievements.
