Download or read book Hypervelocity Impact Physics written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-25 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: All large spacecraft are susceptible to impacts by meteoroids and orbiting space debris. These impacts occur at extremely high speed and can damage flight-critical systems, which can in turn lead to a catastrophic failure of the spacecraft. Therefore, the design of a spacecraft for a long-duration mission must take into account the possibility of such impacts and their effects on the spacecraft structure and on all of its exposed subsystems components. The work performed under the contract consisted of applied research on the effects of meteoroid/space debris impacts on candidate materials, design configurations, and support mechanisms of long term space vehicles. Hypervelocity impact mechanics was used to analyze the damage that occurs when a space vehicle is impacted by a micrometeoroid or a space debris particle. An impact analysis of over 500 test specimens was performed to generate by a hypervelocity impact damage database. Schonberg, William P. and Bean, Alan J. and Darzi, Kent Unspecified Center NASA-CR-4343, NAS 1.26:4343 NAS8-36955...

Download or read book Hypervelocity Impact Physics written by William P. Schonberg and published by . This book was released on 1991 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics of Hypervelocity Impacts written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hypervelocity Impact Physics written by William P. Schonberg and published by . This book was released on 1991 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Physics and Chemistry of Hypervelocity Impact Signatures on Spacecraft written by Hajime Yano and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physics of Debris Clouds from Hypervelocity Impacts written by National Aeronaut Administration (Nasa) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-10 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The protection scheme developed for long duration space platforms relies primarily upon placing thin metal plates or 'bumpers' around flight critical components. The effectiveness of this system is highly dependent upon its ability to break up and redistribute the momentum of any particle which might otherwise strike the outer surface of the spacecraft. Therefore it is of critical importance to design the bumpers such that maximum dispersion of momentum is achieved. This report is devoted to an in-depth study into the design and development of a laboratory instrument which would permit the in-situ monitoring of the momentum distribution as the impact event occurs. A series of four designs were developed, constructed and tested culminating with the working instrument which is currently in use. Each design was individually tested using the Space Environmental Effects Facility (SEEF) at the Marshall Space Flight Center in Huntsville, Alabama. Along with the development of the device, an experimental procedure was developed to assist in the investigation of various bumper materials and designs at the SEEF. Preliminary results were used to compute data which otherwise were not experimentally obtainable. These results were shown to be in relative agreement with previously obtained values derived through other methods. The results of this investigation indicated that momentum distribution could in fact be measured in-situ as the impact event occurred thus giving a more accurate determination of the effects of experimental parameters on the momentum spread. Data produced by the instrument indicated a Gaussian-type momentum distribution. A second apparatus was developed and it was placed before the shield in the line of travel utilized a plate to collect impact debris scattered backwards. This plate had a passage hole in the center to allow the particle to travel through it and impact the proposed shield material. Applying the law of conservation of angular momentum a backwa...

Download or read book The Use of Shock Physics to Predict the Mechanics of Hypervelocity Impact written by James Conrad Pope Smith and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Physics of Hypervelocity Flight as it Affects the Design of Reentry Vehicles written by Thomas N. Canning and published by . This book was released on 1963 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impact Physics written by Robert Graham and published by . This book was released on 1958 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography consists of a rather complete collection of references and abstracts on the subjects of: (1) plastic wave propagation in bounded solids; (2) behavior of metals under explosive conditions; (3) dynamic photoelasticity; (4) penetration phenomena. Other topics covered in less detail are: (5) behavior of material at high strain rates; (6) lateral impact; and (7) impact measurement devices. General references at the beginning of the bibliography cite articles or books which cover the field of impact. An author index and a chronological listing of articles within a particular topic are included.

Download or read book High Velocity Impact Phenomena written by Ray Kinslow and published by Elsevier. This book was released on 2012-12-02 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-Velocity Impact Phenomena covers a wide range of pertinent topics dealing with impact phenomena. The book discusses hypervelocity accelerators; stress wave propagation in solids; and the theory of impact. The text also describes the application of the theory of impact on thin targets and shields and correlation with experiment; the numerical evaluation of hypervelocity impact phenomena; and analytical studies of impact-generated shock propagation. The equation of state of solids from shock wave studies; metallurgical observations and energy partitioning; and engineering considerations in hypervelocity impact are also encompassed. Design engineers will find the book invaluable.

Download or read book Radio frequency Emissions from Hypervelocity Impacts on Charged Spacecraft written by Andrew Michael Nuttall and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The space environment is a complex interactive system that deals with the dynamic processes and effects that can occur above the protective cocoon of Earth's atmosphere. Many extreme conditions found in space can pose significant mechanical and electrical risks to spacecraft systems. Space truly is an area of extremes, where spacecraft in orbit around Earth are immersed in the plasmasphere, where solar weather shapes our magnetosphere, and where meteoroids and asteroids careen past spacecraft at hypervelocity shock inducing speeds. We study these phenomena and others to understand how best to design spacecraft and missions to minimize the risks and hazards they are exposed to while operating in this extreme environment. The specific focus of this research is on the effects and hazards generated by collisions between electrically charged spacecraft and hypervelocity impactors. Spacecraft in orbit around Earth can naturally accrue strong surface charging conditions from the high energy electron populations that exist in regions of Earth's plasmasphere. We focus on the effects that occur when these strong spacecraft charging conditions coincide with hypervelocity impacts from meteoroid and orbital debris collisions with spacecraft. The strong shock waves that are generated from hypervelocity impacts compress, heat, and ionize the affected media and produce a plasma at the site of impact. The plasma formation process is predominately an effect of impact velocity and can persist across impactors of all sizes and masses. This plasma acts as a conduit for many different unwanted electrical phenomena. This thesis strives to understand the potential for hazardous radio-frequency electromagnetic pulses to be emitted from the impact plasma when impacts occur on electrically biased spacecraft surfaces. This research is motivated in part by case studies of spacecraft electrical subsystem failures during peak meteoroid shower activity. The expansion and evolution of a hypervelocity impact plasma and its potential to emit radio-frequency electromagnetic pulses is driven in large part by the initial conditions of the impact event and the boundary conditions imposed by the space environment and the charged spacecraft surfaces. This thesis presents novel research on the high energy shock physics that describe the formation of the initial impact plasma, with a specific focus on how material properties and impact conditions affect the thermodynamic states of the shocked media. Following the formation of the impact plasma we show how the expansion process in the presence of a strong negative external electric field can lead to conditions where the bulk of the plasma's electrons are accelerated away from the spacecraft. This bulk acceleration creates a wide-band radio-frequency emission which scales with the amount of plasma produced, the plasma temperature, and the bias conditions on the spacecraft. We corroborate these findings with experimental campaigns at electrostatic accelerator and light gas gun impact facilities. In these experiments we observe for the first time wide-band RF emissions from hypervelocity impacts with charged surfaces. A scaling analysis of the emission strength shows that spacecraft can be exposed to wide-band emissions in excess of $\SI{1}{\watt}$ effective isotropic radiated power for high energy collisions. These emission strengths, which are many orders of magnitude outside of the expectation on spurious emissions and radio-frequency interference, represent a risk for sensitive spacecraft electronics.

Download or read book High Pressure Shock Compression of Solids VIII written by L.C. Chhabildas and published by Springer. This book was released on 2009-09-02 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research in the field of shock physics and ballistic impact has always been intimately tied to progress in development of facilities for accelerating projectiles to high velocity and instrumentation for recording impact phenomena. The chapters of this book, written by leading US and European experts, cover a broad range of topics and address researchers concerned with questions of material behaviour under impulsive loading and the equations of state of matter, as well as the design of suitable instrumentation such as gas guns and high-speed diagnostics. Applications include high-speed impact dynamics, the inner composition of planets, syntheses of new materials and materials processing. Among the more technologically oriented applications treated is the testing of the flight characteristics of aeroballistic models and the assessment of impacts in the aerospace industry.

Download or read book Hypervelocity Impact HVI Volume 1 General Introduction written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-03 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: During 2003 and 2004, the Johnson Space Center's White Sands Testing Facility in Las Cruces, New Mexico conducted hypervelocity impact tests on the space shuttle wing leading edge. Hypervelocity impact tests were conducted to determine if Micro-Meteoroid/Orbital Debris impacts could be reliably detected and located using simple passive ultrasonic methods. This volume contains an executive summary, overview of the method, brief descriptions of all targets, and highlights of results and conclusions. Gorman, Michael R. and Ziola, Steven M. Langley Research Center NASA/CR-2007-214885/VOL1 NNL05AC19T; WBS 377816.06.03.03.06 HYPERVELOCITY IMPACT; SPACE SHUTTLES; LEADING EDGES; IMPACT TESTS; TEST FACILITIES; SPACE DEBRIS; ULTRASONICS; MICROMETEOROIDS; DETECTION; SPALLING; WAVEFORMS; SIMULATION; KINETIC ENERGY; DATA PROCESSING

Download or read book Modeling the Oblique Hypervelocity Impact of Orbital Debris Particles on Spacecraft Structures Using Elementary Shock Physics written by Ahmed Roushdy Ebrahim and published by . This book was released on 1998 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hypervelocity Impact Spray Particles written by William Henry Clark and published by . This book was released on 1960 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Pressure Shock Compression of Solids VIII written by L.C. Chhabildas and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research in the field of shock physics and ballistic impact has always been intimately tied to progress in development of facilities for accelerating projectiles to high velocity and instrumentation for recording impact phenomena. The chapters of this book, written by leading US and European experts, cover a broad range of topics and address researchers concerned with questions of material behaviour under impulsive loading and the equations of state of matter, as well as the design of suitable instrumentation such as gas guns and high-speed diagnostics. Applications include high-speed impact dynamics, the inner composition of planets, syntheses of new materials and materials processing. Among the more technologically oriented applications treated is the testing of the flight characteristics of aeroballistic models and the assessment of impacts in the aerospace industry.

Download or read book Large Meteorite Impacts and Planetary Evolution VI written by Wolf Uwe Reimold and published by Geological Society of America. This book was released on 2021-09-23 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This volume contains a sizable suite of contributions dealing with regional impact records (Australia, Sweden), impact craters and impactites, early Archean impacts and geophysical characteristics of impact structures, shock metamorphic investigations, post-impact hydrothermalism, and structural geology and morphometry of impact structures - on Earth and Mars"--