Ground Motions from High-explosive Experiments
Ground Motions from High-explosive Experiments

Author: Leo F. Ingram

Publisher:

Published: 1972

Total Pages: 46

ISBN-13:

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A review of ground shock data from recent large, near-surface high-explosive tests is made. Emphasis is on close-in motions in rock. Wave forms are shown for selected shots and locations. Comparisons are made among wave forms for similar test conditions in different geologic materials including soil, shale, granite, and sandstone. Variations in peak motion amplitudes at various depths and ranges are discussed for the different geologic materials. (Author).

The Centrifugal Simulation of Blast Parameters
The Centrifugal Simulation of Blast Parameters

Author: John P. Nielsen

Publisher:

Published: 1983

Total Pages: 102

ISBN-13:

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This study is concerned with the use of a centrifuge as an experimental device on which free-field blast parameters could be evaluated. Free-field normal stress, created by the detonation of simulated high-explosive charges, was recorded within a sand medium. A series of experiments was concerned with the measurement of free-field normal stress, created by exploding buried charges. Another test series was concerned with the free-field normal stress beneath a concrete burster slab. The results of this study indicate that a centrifuge can be used as a simulator on which free-field blast effects can be evaluated. (Author).

Impact and Explosion Cratering
Impact and Explosion Cratering

Author: David John Roddy

Publisher: Pergamon

Published: 1977

Total Pages: 1326

ISBN-13:

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Aspects of cratering phenomenology are considered along with material properties and shock effects, theoretical cratering mechanics, ejecta, and problems of scaling. Attention is given to the application of high explosion cratering data to planetary problems, cratering mechanisms observed in laboratory-scale high-explosive experiments, nuclear cratering experiments, complex craters in alluvium, terrestrial impact structures, the Ries impact crater, buried impact craters in the Williston basin and the adjacent area, crater morphometry from bistatic radar, a Fourier analysis of planimetric lunar crater shape, a stratigraphic model for Bessel Crater and southern Mare Serenitatis, a nested-crater model of lunar ringed basins, Martian fresh crater morphology and morphometry, the distribution and emplacement of ejecta around Martian impact craters, the nature of the present interplanetary crater-forming projectiles, cratering mechanics and future Martian exploration, the response of rocks to large stresses, the dynamical implications of the petrology and distribution of impact melt rocks, and a review and comparison of hypervelocity impact and explosion cratering calculations.