The Hugoniot Equation of State of 6061-T6 Aluminum at Low Pressures

The Hugoniot Equation of State of 6061-T6 Aluminum at Low Pressures PDF

Author: C. Donald Lundergan

Publisher:

Published: 1961

Total Pages: 20

ISBN-13:

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The Hugoniot equation of state of 6061-T6 aluminum was determined in the pressure region from 0 to 31 kilobars. The one-dimensional shock waves, which were used to compress the medium, were produced by impacting an aluminum target with a flat-nosed projectile. The elastic shock wave velocity was measured as 6.23±0.15 mm/[mu]. Above the Hugoniot elastic limit of 6.3±0.1 kilobars both elastic and plastic shocks were observed. The particle velocity behind the shock front, determined at the plane of impact, was compared to the free surface velocity. Above the elastic limit the free surface velocity was less than twice the initial particle velocity and appeared to be a function of the thickness of the target.

Impactful Times

Impactful Times PDF

Author: James R. Asay

Publisher: Springer

Published: 2017-05-02

Total Pages: 668

ISBN-13: 331933347X

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This book presents a history of shock compression science, including development of experimental, material modeling, and hydrodynamics code technologies over the past six decades at Sandia National Laboratories. The book is organized into a discussion of major accomplishments by decade with over 900 references, followed by a unique collection of 45 personal recollections detailing the trials, tribulations, and successes of building a world-class organization in the field. It explains some of the challenges researchers faced and the gratification they experienced when a discovery was made. Several visionary researchers made pioneering advances that integrated these three technologies into a cohesive capability to solve complex scientific and engineering problems. What approaches worked, which ones did not, and the applications of the research are described. Notable applications include the turret explosion aboard the USS Iowa and the Shoemaker-Levy comet impact on Jupiter. The personal anecdotes and recollections make for a fascinating account of building a world-renowned capability from meager beginnings. This book will be inspiring to the expert, the non expert, and the early-career scientist. Undergraduate and graduate students in science and engineering who are contemplating different fields of study should find it especially compelling.

Shock Waves and High-Strain-Rate Phenomena in Metals

Shock Waves and High-Strain-Rate Phenomena in Metals PDF

Author: Mare Meyers

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 1084

ISBN-13: 1461332192

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The scientific understanding of high-velocity deformation has advanced substantially during the past decade. On the one hand, the framework for a theory explaining the metallurgical effects of shock waves is beginning to take shape; on the other hand, the technological applications of high strain-rate processes have found their way into industries in countries around the world. Ex plosive cladding, welding, forming, compaction and consolidation, cutting, and hardening, in addition to high energy-rate deformation processes using other energy sources, are some of the topics of contemporary technological importance. Metallurgical effects are of the utmost importance in both the scientific understanding of the phenomena involved, and in the successful development and utilization of the associated applications. The international conference upon which this book is based had as its major objectives the acceleration of progress in the field of high-strain rate deformation and fabrication, including applications, by providing a forum for the exchange of state-of-the art information on the metallurgical effects of high strain-rate deformation and fabrication; and the organization of this informa tion into a timely and coherent body of knowledge focused around significant areas and applications. This volume is a manifestation of these objectives. In addition, the contents of this book were organized to provide for a somewhat logical perspective of the fundamentals, development, and state-of-the-art applications of high strain-rate and shock phenomena.

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