Download or read book Development and Proving of a Split Hopkinson Pressure Bar Used for High Strain Rate Materials Testing written by Stephen Thomas Marais and published by . This book was released on 2001 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Split Hopkinson Kolsky Bar written by Weinong W. Chen and published by Springer Science & Business Media. This book was released on 2010-11-11 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Transient Dynamic Analysis of Modified Hopkinson Pressure Bar System for High Strain Rate Tensile Testing written by John-Paul Laurente Pascua and published by . This book was released on 2022 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: High strain rate testing of specimens within a split Hopkinson pressure bar (SHPB) is a well-established experimental technique used to quantify the compressive properties of materials in high impact events. The aim of this thesis is to investigate high strain rate tensile testing of materials utilizing a modified Hopkinson pressure bar system containing a tension yoke that deforms a test specimen by impacting the yoke strike plate and converting the incident compression wave into tension loading through the specimen. Credence towards the proposed design is built utilizing various finite element benchmark models and verification against the principles of SHPB systems is conducted using computational analysis to quantify the feasibility and performance of the system. Results show that the strain response in the Hopkinson pressure bar shows a strong correlation to the strain response in the test specimen, as assessed via comparison of peak forces and observing relatively low difference between the two quantities. Following this, effects of dispersion are explored further by modifying the impacting pulse shape and comparing results between different pulse shapes. Final stages of analysis reveal that momentum of the tension yoke largely affects the strain response of the tensile specimen relative to the applied pulse. However, the strong correlation of the force pulse developed within the tensile specimen and the force pulse transmitted into the Hopkinson bar remains very consistent, showing the potential of the proposed apparatus design to be used as a functional experimental system for converting impact into high strain rate tensile loading.
Download or read book A Miniaturized Split Hopkinson Pressure Bar for Very High Strain Rate Testing written by and published by . This book was released on 2004 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of material properties at very high rates of strain give an important insight into the structure of these materials, as well as having many industrial uses. This paper describes a miniaturized split Hopkinson pressure bar (MSHPB) for measuring the stress-strain relationships in materials at strain rates up to 105 s-1, extending the technique from its usual range of 500 - 104 s-1. As well as describing the difficulties of carrying out experiments at very high rates, and how these difficulties are overcome in this system, the paper also shows some data from experiments on copper and polytetrafluoroethylene (PTFE).
Download or read book Dynamic Behavior of Materials Volume 1 written by Jamie Kimberley and published by Springer. This book was released on 2018-10-27 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1 of the Proceedings of the 2018 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the first volume of eight 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 on: Synchrotron Applications/Advanced Dynamic Imaging Quantitative Visualization of Dynamic Events Novel Experimental Techniques Dynamic Behavior of Geomaterials Dynamic Failure & Fragmentation Dynamic Response of Low Impedance Materials Hybrid Experimental/Computational Studies Shock and Blast Loading Advances in Material Modeling Industrial Applications
Download or read book Development and Investigation of Materials Using Modern Techniques written by Zainal Arifin Ahmad and published by Trans Tech Publications Ltd. This book was released on 2016-01-08 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of selected, peer reviewed papers from the Seminar on Advanced Materials Characterization Techniques in Research, Industry and Nuclear Applications (AMCT 2015), June 9-10, 2015, Selangor, Malaysia. The 81 papers are grouped as follows: Chapter 1: Ceramics and Composites Chapter 2: Materials for Biomedical Engineering, Biotechnologies Chapter 3: Nanomaterials and Nanotechnology, Materials for Electronics Chapter 4: Materials and Technologies for Mechanical Engineering Chapter 5: Materials and Technologies for Chemical Engineering Chapter 6: Waste Recycling and Environmental Engineering
Download or read book Dynamic Behavior of Materials Volume 1 written by Bo Song and published by Springer. This book was released on 2014-08-08 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1: Proceedings of the 2014 Annual Conference on Experimental and Applied Mechanics, the first volume of eight 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 on: · General Dynamic Materials Response · Novel Dynamic Testing Techniques · Dynamic Fracture and Failure · Dynamic Behavior of Geo-materials · Dynamic Behavior of Composites and Multifunctional materials · Dynamic Behavior of Low-Impedance materials · Dynamic Modeling and Simulation of Dynamic Behavior of Materials · Quantitative Visualization of Dynamic Behavior of Materials · Shock/Blast Loading of Materials · Interface and Structural Dynamics · Material Response
Download or read book Adiabaticity of High Strain Rate Compression Testing Using the Split Hopkinson Pressure Bar Apparatus microform written by Frank Stewart Walton and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1997 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Behavior of Materials Volume 1 written by Leslie Lamberson and published by Springer Nature. This book was released on 2021-04-08 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1 of the Proceedings of the 2020 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the first 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 on: Synchrotron Applications/Advanced Dynamic Imaging Quantitative Visualization of Dynamic Events Novel Experimental Techniques Dynamic Behavior of Geomaterials Dynamic Failure & Fragmentation Dynamic Response of Low Impedance Materials Hybrid Experimental/Computational Studies Shock and Blast Loading Advances in Material Modeling Industrial Applications
Download or read book Adiabaticity of High Strain Rate Compression Testing Using the Split Hopkinson Pressure Bar Apparatus written by Frank Stewart Walton and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Split Hopkinson Pressure Bar Testing and Constitutive Model Evaluation for 7050 T7451 Aluminum IN718 Superalloy 300M Steel written by Xinlong Gao and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The understanding of material's response to high strain rate loading is essential for a range of applications such as high-speed forming, machining, crashworthiness of automotive structures, and similarly ballistics impact performance of armor and engine fan blade containment structures. For reliable numerical modelling of such processes, accurate high strain rate materials data and constitutive models describing the strain rate dependence of the material's stress-strain response are necessary. The Split-Hopkinson pressure bar (SHPB) has been a commonly used method for evaluating the high strain rate response of materials in the range of 102s-1 to 104s-1. Measurements from this technique is useful for producing precise data to calibrate constitutive models, and to facilitate modeling and simulation of high strain rate processes.In this study, a compressive Split-Hopkinson pressure bar (SHPB) setup was used to evaluate the stress-strain response for three alloys, Aluminum 7050-T7451, Inconel 718, and 300M steel for the modelling of shot-peening, cold-work surface modification process. Shot peening involves impacting a material's surface with spherical media to generate sub-surface deformed layers containing strain hardening and residual stress. During the peening process, strain rates of the peened material can reach up to 105s-1 to 106s-1, which is greater than strain rates measurable using the SHPB. To enable a higher strain rate response, SHPB tests were carried out at a low temperature by cooling to represent the response of an increase in strain rate through the equivalent effect of lower temperatures and higher strain rates on the measured stress. In addition, SHPB tests were carried out at specific strain rates and test temperatures for calibrating constitutive models.From SHPB tests, Aluminum 7050-T7451 stress-strain results showed an increase in strain rate sensitivity above 103s-1 and at 25°C. For varying temperature tests measured at 2×103s-1, the stress-strain at -110°C showed higher strength and initial strain hardening rate compared to the resultat 25°C. Negative strain hardening occurred for results at 100°C and 200°C and the rate of thermal softening increased at 200°C. IN718 exhibited a moderate increase in strength from 103s-1 to 4×103s-1 at 25°C. For varying temperature tests at 4×103s-1, the strength increased at -110°C relative to 25°C and the strain hardening rate was comparable in both tests. At 500°C, the measured strain hardening rate was notably lower compared to the result at 25°C. 300M steel alloys tested at 3×10s-1 and 25°C displayed stress saturation and slight negative strain hardening with increasing strain. At a strain rate of 2.4×103s-1, the strength at -70°C was greater than that at 25°C, and strain hardening trends were similar for both conditions. Stress-strain response at 200°C displayed an initial increase in strain hardening prior to softening, and stress saturation at 500°C was comparable to the result at 25°C. In addition, shear failure occurred in samples tested at varying temperatures and strain to failure was comparable in all conditions.The SHPB results attained at high strain rates, varying temperatures as well as quasi-static data at 25°C, were used to evaluate the Johnson Cook (J-C) model parameter for each alloy. A modified Johnson Cook model with Voce strain hardening law and a modified Khan-Huang-Liang (KHL) model were evaluated and provided closer fit to Aluminum 7050-T7451 and IN718 results, respectively compared to the J-C model. For 300M steel, a modified J-C model with Cowper Symonds strain rate form provided comparable correlation to experiments as the J-C model. The J-C model, and models with more adequate correlations were used to extrapolate the stress at higher strain rates to represent the response encountered during peening." --
Download or read book Dynamic Behavior of Materials Volume 1 written by Vijay Chalivendra and published by Springer Science & Business Media. This book was released on 2012-09-26 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1: Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics represents one of seven volumes of technical papers presented at the Society for Experimental Mechanics SEM 12th International Congress & Exposition on Experimental and Applied Mechanics, held at Costa Mesa, California, June 11-14, 2012. The full set of proceedings also includes volumes on Challenges in Mechanics of Time -Dependent Materials and Processes in Conventional and Multifunctional Materials, Imaging Methods for Novel Materials and Challenging Applications, Experimental and Applied Mechanics, 2nd International Symposium on the Mechanics of Biological Systems and Materials 13th International Symposium on MEMS and Nanotechnology and, Composite Materials and the 1st International Symposium on Joining Technologies for Composites.
Download or read book The Development and Use of a Torsional Split Hopkinson Bar for Experiments in Dynamic Plasticity written by Theodore Nicholas and published by . This book was released on 1971 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The development and use of a torsional split-Hopkinson bar testing apparatus for determining the mechanical properties of materials at high rates of strain is described. The apparatus is capable of generating a smooth torsional pulse with a rise-time of approximately 20 microseconds and can be used to generate shear stress-strain data at strain rates above 1000/sec. Experimental data are presented for an aluminum alloy. Results of incremental wave propagation tests on quasistatically prestressed specimens of an essentially 'rate-independent' metal indicate that the velocity of propagation of the wave front is that of an elastic shear wave which is in agreement with the rate-dependent theory of plastic wave propagation. (Author).
Download or read book Split Hopkinson Pressure Bar written by S. Sharma and published by . This book was released on 2011 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamic Behavior of Materials Volume 1 written by Steven Mates and published by Springer Nature. This book was released on 2022-11-25 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1 of the Proceedings of the 2021 SEM Annual Conference & Exposition on Experimental and Applied Mechanics, the first volume of six 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 on: Hybrid Experimental-Analytical Techniques Industrial Applications Quantitative Visualization of Dynamic Events Novel Testing Techniques Shock and Blast Synchrotron Applications and Advanced Imaging
Download or read book The Development and Use of a Torsional Split Hopkinson Bar for Testing Materials at Shear Strain Rates Up to 15000 Sec 1 written by J. D. Campbell and published by . This book was released on 1969 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
