Split Hopkinson Kolsky Bar
DOWNLOAD
Download Split Hopkinson Kolsky Bar PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Split Hopkinson Kolsky Bar book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Split Hopkinson Kolsky Bar
DOWNLOAD
Author : Weinong W. Chen
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-11-11
Split Hopkinson Kolsky Bar written by Weinong W. Chen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-11 with Technology & Engineering categories.
The authors systematically describe the general principles of Kolsky bars, or split Hopkinson bars, which are widely used for obtaining dynamic material properties. Modifications are introduced for obtaining reliable data. Specific experiment design guidelines are provided to subject the specimen to desired testing conditions. Detailed Kolsky-bar examples are given for different classes of materials (brittle, ductile, soft, etc) and for different loading conditions (tension, torsion, triaxial, high/low temperatures, intermediate strain rate, etc). The Kolsky bars used for dynamic structural characterization are briefly introduced. A collection of dynamic properties of various materials under various testing conditions is included which may serve as a reference database. This book assists both beginners and experienced professionals in characterizing high-rate material response with high quality and consistency. Readers who may benefit from this work include university students, instructors, R & D professionals, and scholars/engineers in solid mechanics, aerospace, civil and mechanical engineering, as well as materials science and engineering.
The Kolsky Hopkinson Bar Machine
DOWNLOAD
Author : Ramzi Othman
language : en
Publisher: Springer
Release Date : 2018-04-20
The Kolsky Hopkinson Bar Machine written by Ramzi Othman and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-20 with Technology & Engineering categories.
In this book, leading scientists share their vision on the Kolsky-Hopkinson bar technique, which is a well-established experimental technique widely used to characterize materials and structures under dynamic, impact and explosion loads. Indeed, the Kolsky-Hopkinson bar machine is not a simple experimental device. It is rather a philosophical approach to solve the problem of measuring impact events. The split Hopkinson pressure bar conventional device is mainly limited to test homogeneous ductile non-soft materials under uni-axial compression. Extending the use of this device to more versatile applications faces several challenges such as controlling the stress state within the specimen and mastering the measurement of forces and velocities at the specimen-bar interfaces and then the material properties. Thus, the topics discussed in this book mainly focused on the loading and processing parts.
New Experimental Techniques With The Split Hopkinson Pressure Bar
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1984
New Experimental Techniques With The Split Hopkinson Pressure Bar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
The split Hopkinson pressure bar or Kolsky bar has provided for many years a technique for performing compression tests at strain rates approaching 104 s−1. At these strain rates, the small dimensions possible in a compression test specimen give an advantage over a dynamic tensile test by allowing the stress within the specimen to equilibrate within the shortest possible time. The maximum strain rates possible with this technique are limited by stress wave propagation in the elastic pressure bars as well as in the deforming specimen. This subject is reviewed in this paper, and it is emphasized that a slowly rising excitation is preferred to one that rises steeply. Experimental techniques for pulse shaping and a numerical procedure for correcting the raw data for wave dispersion in the pressure bars are presented. For tests at elevated temperature a bar mover apparatus has been developed which effectively brings the cold pressure bars into contact with the specimen, which is heated with a specially designed furnace, shortly before the pressure wave arrives. This procedure has been used successfully in tests at temperatures as high as 1000°C.
Special Workshop Kolsky Split Hopkinson Pressure Bar Testing Of Ceramics
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2006
Special Workshop Kolsky Split Hopkinson Pressure Bar Testing Of Ceramics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
A special workshop on Kolsky Bar/Split Hopkinson Pressure Bar Testing of Armor Ceramics was held in conjunction with the 29th International Conference and Exposition on Advanced Ceramics and Composites, Cocoa Beach, FL, on 27 January 2005. This special report is a collection of the pertinent information from that workshop.
The Design Construction And Experimental Verification Of A Split Hopkinson Bar
DOWNLOAD
Author : Woosoon Bai
language : en
Publisher:
Release Date : 1970
The Design Construction And Experimental Verification Of A Split Hopkinson Bar written by Woosoon Bai and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Dynamic testing categories.
"This thesis presents the design considerations for a dynamic loading device utilizing a projectile fired from a tube. Also included is a preliminary investigation of the stress-strain relation, under dynamic loading with the device, for a plaster known as Hydrostone. Design of the unit is based on the split Hopkinson pressure bar originally developed by Kolsky and on a similar unit in use at the Lawrence Radiation Laboratory, Livermore, California. The strain pulses along the pressure bars are sensed by resistance wire strain gages and displayed on an oscilloscope. The oscilloscope traces are photographed and manually digitized for insertion into a computer program which gives results in terms of specimen stress, strain and strain rate. The recorded information applied for times of the order of 100 microseconds. All equations in this thesis are based on the one-dimensional theory of stress wave propagation. Further, the material tested is shown to be reasonably isotropic and homogeneous. The design of the loading device and attendant instrumentation has proven to be successful. Experiments were conducted on 1100-0 aluminum samples and Hydrostone plaster. Curves of results are included in the work"--Abstract, leaf ii.
Challenges In Mechanics Of Time Dependent Materials Volume 2
DOWNLOAD
Author : Meredith Silberstein
language : en
Publisher: Springer Nature
Release Date : 2021-04-05
Challenges In Mechanics Of Time Dependent Materials Volume 2 written by Meredith Silberstein and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-05 with Technology & Engineering categories.
Challenges in Mechanics of Time-Dependent Materials, Volume 2 of the Proceedings of the 2020 SEM Annual Conference& Exposition on Experimental and Applied Mechanics, the second volume of seven from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Experimental Mechanics, including papers in the following general technical research areas: Characterization Across Length Scales Extreme Environments & Environmental Effects Soft Materials Damage, fatigue and Fracture Inhomogeneities & Interfaces Viscoelasticity Research in Progress
Stress Waves In Solids
DOWNLOAD
Author : Herbert Kolsky
language : en
Publisher: Courier Corporation
Release Date : 1963-01-01
Stress Waves In Solids written by Herbert Kolsky and has been published by Courier Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963-01-01 with Technology & Engineering categories.
The most readable survey of the theoretical core of current knowledge available. The author gives a concise account of the classical theory necessary to an understanding of the subject and considers how this theory has been extended to solids.
Design And Operating Characteristics Of A Split Hopkinson Pressure Bar Apparatus
DOWNLOAD
Author : Kenneth D. Robertson
language : en
Publisher:
Release Date : 1971
Design And Operating Characteristics Of A Split Hopkinson Pressure Bar Apparatus written by Kenneth D. Robertson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with High pressure (Science) categories.
Numerical Simulations Of Wave Propagation In Long Bars With Application To Kolsky Bar Testing
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2014
Numerical Simulations Of Wave Propagation In Long Bars With Application To Kolsky Bar Testing written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Development Of Kolsky Bar Techniques And The Experimental Characterization Of Ultra High Molecular Weight Polyethylene Composites
DOWNLOAD
Author : Thomas Hannah
language : en
Publisher:
Release Date : 2023
Development Of Kolsky Bar Techniques And The Experimental Characterization Of Ultra High Molecular Weight Polyethylene Composites written by Thomas Hannah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
The goal of this work is twofold. One part is to develop both the experimental techniques and advanced finite element modeling techniques necessary for understanding and analyzing data collected using a miniature 3.16 mm diameter Kolsky bar or Split Hopkinson Pressure Bar for high rate experimentation. Additionally, a robust analysis technique to gather statistically significant data is developed to simplify the experimental data gathering process and ensure the significance of the results. The work focuses mainly of the development of the Kolsky equipment and techniques, as well as methods for identifying error sources during testing. Additionally, models of the SHPB system have been generated using the finite element code Abaqus®, and are used throughout the project to aid in system characterization and experimental design efforts. Special attention is paid to the differences between miniature systems and full size ones, especially where data collection rates and sampling frequency are concerned. The use and characterization of paper pulse shapers is also developed to aid in the testing of UHMWPE samples at rates in excess of 10^4 strain per second. The second aspect of this work is to apply these techniques to the characterization of Dyneema® which is a composite consisting of Ultra High Molecular Weight Polyethylene (UHMWPE) fibers set in a polymer matrix, in this case HB26 hard laminate. Additionally, this work entails the design and implementation of full scale high speed impact tests using UHMWPE targets in multiple configurations to examine the variation in response due to a change in initial conditions and to evaluate the change in damage mechanisms. Finally, high resolution Computer Tomography or CT scans are used to evaluate the damage mechanisms observed in both the Kolsky bar testing and the plate impact testing nondestructively and without otherwise effecting the failure surfaces and structures. Mechanisms displayed in the Kolsky experiments are then compared to those observed in the plate impact tests to determine if and where the type of data collected from Kolsky bar tests can be applied to any future modeling efforts of the composite. Three fundamental knowledge gaps to be addressed in this work are: 1) Can a newer generation of "miniature" Kolsky bars generate repeatable and reproducible data? 2) How does Dyneema® respond differently increasing the strain rate from 10^3 strain per second to 10^4 strain per second? 3) Are there similar damage mechanisms seen in small scale Kolsky tests and large scale impact tests, and where could the Kolsky bar data be applied to future modeling efforts?