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Numerical Studies Of The Dynamic Response Of Shallow Buried Arches Subjected To Blast Loading
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Book Synopsis Numerical Studies of the Dynamic Response of Shallow-buried Arches Subjected to Blast Loading by : Caryll R. Whipple
Download or read book Numerical Studies of the Dynamic Response of Shallow-buried Arches Subjected to Blast Loading written by Caryll R. Whipple and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Dynamic Response of Shallow-buried Arches Subjected to Blast Loading by : Caryll Robbins Whipple
Download or read book The Dynamic Response of Shallow-buried Arches Subjected to Blast Loading written by Caryll Robbins Whipple and published by . This book was released on 1961 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the effectiveness of the surrounding soil in restraining the lateral movement of shallow-buried arches subjected to blast overpres ures from a nuclear explosion. The theory is developed for parabolic arches with circular or barrel arches included as a special case. It can be pplied equally well to arches oriented with their longitudinal axes perpendicular to or parallel to the direction of travel of the blast wave. The arch is considered to be buried near the surface of a semi-infinite soil mass. The depth of cover over the crown is limited to one-half of the arch span. The twohinged rather than the fixed arch is selected as representing more closely the shallow-buried rch structures used in full-scale nuclear tests to date. While these structures were not actually pinned at the arch abutments, their behavior under blast loading appears to resemble more closely the pinned th n the fixed case. he principal variables studied in the numerical examples include: (1) depth of cover, (2) overpressure loading, (3) arch material, and (4) arch span. (Author).
Book Synopsis The Dynamic Response of a Simulated Buried Arch to Blast Loading by : Thomas Edward Kennedy
Download or read book The Dynamic Response of a Simulated Buried Arch to Blast Loading written by Thomas Edward Kennedy and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of analysis for buried arches with footings was developed to predict their response to a nuclear airblast overpressure. The method of analysis was formulated by considering the arch ring as a discrete model consisting of a finite number of nodes (flexible joints) connected by rigid bars initially of equal length. The results of laboratory and field tests on 1/4.5- and 1/2-scale models, respectively, of an arch structure are compared with predictions made using the analysis. Arch internal loads, footing motions, and free-field motions are compared with those predicted by the analysis and compare favorably. The analytical technique was used to predict the response of the prototype structure to a 140-psi air overpressure loading resulting from the detonation of 10-kt, 100-kt, and 1-Mt weapons, to a 100-psi air overpressure for a 1-Mt weapon, and to the Operation Prairie Flat (500-ton TNT) 140-psi overpressure and the predicted response was compared with that assumed in designing the structure. The method of analysis developed is recommended whenever a significant cost savings can be realized because a number of structures are to be constructed or when local soil conditions make design by cruder methods uncertain. (Author).
Download or read book Technical Report written by and published by . This book was released on 1963 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Body Motions of a Buried Arch Subjected to Blast Loading by : Jay R. Allgood
Download or read book Body Motions of a Buried Arch Subjected to Blast Loading written by Jay R. Allgood and published by . This book was released on 1963 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: An approximate method is developed for predicting the deflections of the footings of a buried arch subjected to a blast wave traveling along the surface. Results from the theory are compared with measured values from Operation Plumbbob Structure 3.3a. The influence of the dominant parameters is discussed. It is shown that duration of loading is exceedingly important in governing the magnitude of footing deflections. The theory is presented in a form suitable for use in the design office. (Author).
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1963-04 with total page 1468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Blast Loading of Small Buried Arches by : Jay R. Allgood
Download or read book Blast Loading of Small Buried Arches written by Jay R. Allgood and published by . This book was released on 1963 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: It was evident that the passive pressures which developed on the sides played the dominant role in providing resistance. It has been found that in static tests some of the surface load is carried by arching through the soil. In the dynamic tests the inertial forces of the soil above the arch were found to be important. The inertial load overcame the soil shear resistance so that a load approximately equal to the surface load acted on the structure. A model analysis of the system and subsequent comparison of the deflections from the small-structure tests and the Operation Plumbbob Structure 3.3 tests indicate that modeling of deflections is possible.
Book Synopsis U.S. Government Research Reports by :
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1963 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Similitude Study of Flexible Buried Arches Subjected to Blast Loads by : Jimmy P. Balsara
Download or read book Similitude Study of Flexible Buried Arches Subjected to Blast Loads written by Jimmy P. Balsara and published by . This book was released on 1968 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the study was to investigate and verify model-to-prototype scaling relations for blast loaded buried arches that respond both elastically and inelastically. Four geometrically similar, semicircular aluminum alloy arches with 4-, 8-, 12-, and 36-inch diameters were buried in dense dry sand and subjected to air-blast-induced loads on the surface. The tests were conducted at the Large Blast Load Generator located at the U.S. Army Engineer Waterways Experiment Station. The results of two series of tests, each consisting of 3 repeated shots, ranging from 70 to 300 psi, are presented. Within the range of parameters investigated, the scaling of the dependent variables were adequately verified. These variables included acceleration, velocity, displacement, thrust, and bending moment. (Author).
Book Synopsis Model Study of a Buried Arch Subjected to Dynamic Loading by : Robert K. Tener
Download or read book Model Study of a Buried Arch Subjected to Dynamic Loading written by Robert K. Tener and published by . This book was released on 1964 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Shock and Vibration Bulletin by :
Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1963 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shock, Vibration, and Associated Environments by :
Download or read book Shock, Vibration, and Associated Environments written by and published by . This book was released on 1963 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dynamic Response Analysis of Shallow-buried Reinforced Concrete Arches by : Rick David Puglisi
Download or read book Dynamic Response Analysis of Shallow-buried Reinforced Concrete Arches written by Rick David Puglisi and published by . This book was released on 1987 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination 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 con cerned if the printing and distribution of the volumes were handled by an interna tional 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 Cor poration 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 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Book Synopsis Air Force Design Manual by : Nathan Mortimore Newmark
Download or read book Air Force Design Manual written by Nathan Mortimore Newmark and published by . This book was released on 1962 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Blast Mitigation written by Arun Shukla and published by Springer Science & Business Media. This book was released on 2013-07-06 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Response of Arches Under Dynamic Loads by : R. T. Eppink
Download or read book Response of Arches Under Dynamic Loads written by R. T. Eppink and published by . This book was released on 1960 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is concerned with a study of the response of arches subjected to the influence of transient forces. A numerical procedure is presented for the computation of the dynamic response of arches for both the elastic and inelastic ranges of deformation. The procedure is applicable to arches having any shape and any distribution of mass and stiffness. The distribution of the pressure along the arch and its timewise variation may be arbitrary. The analysis is simplified by replacing the actual arch which has an infinite number of degrees of freedom by a discrete framework consisting of a series of rigid bars, flexible joints and concentrated point masses. For the computation of the response in the inelastic range, the cross-sectional area of the arch is considered to consist of two concentrated flange areas connected by a thin rigid web.
