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Author: AE. Brown Publisher: ISBN: Category : Acoustic drop tower Languages : en Pages : 15
Book Description
We have been developing the capability to characterize the high strain rate response of continuous fiber polymer composites. The data presented cover strain rates from 0/s to 3000/s. A combination of test machines and specimen geometries was investigated. Strain rates from 0 to 100/s were generated using conventional and high-speed hydraulic test machines. Strain rates from 10 to 1000/s were generated using a high-energy drop tower, and rates from 1000 to 3000/s were generated using a split Hopkinson bar. Strain rates above 100/s have only been generated for uniaxial compression. Our efforts have primarily focused on developing the high-energy drop tower for these purposes. Specimen geometries for compression include tapered cubes, one-inch tubes, and solid rods. For tension, a smaller 1.27-cm-diameter version of our 5.08-cm-diameter multiaxial test specimen was developed and has been successfully used at strain rates up to 100 per second. Fixtures were also developed for performing high strain rate shear testing and through thickness penetration studies of composite plates. The objective of these experiments is to develop dynamic material models for use in finite element design tools. This presentation will focus on the methods and results obtained from this study.
Author: AE. Brown Publisher: ISBN: Category : Acoustic drop tower Languages : en Pages : 15
Book Description
We have been developing the capability to characterize the high strain rate response of continuous fiber polymer composites. The data presented cover strain rates from 0/s to 3000/s. A combination of test machines and specimen geometries was investigated. Strain rates from 0 to 100/s were generated using conventional and high-speed hydraulic test machines. Strain rates from 10 to 1000/s were generated using a high-energy drop tower, and rates from 1000 to 3000/s were generated using a split Hopkinson bar. Strain rates above 100/s have only been generated for uniaxial compression. Our efforts have primarily focused on developing the high-energy drop tower for these purposes. Specimen geometries for compression include tapered cubes, one-inch tubes, and solid rods. For tension, a smaller 1.27-cm-diameter version of our 5.08-cm-diameter multiaxial test specimen was developed and has been successfully used at strain rates up to 100 per second. Fixtures were also developed for performing high strain rate shear testing and through thickness penetration studies of composite plates. The objective of these experiments is to develop dynamic material models for use in finite element design tools. This presentation will focus on the methods and results obtained from this study.
Author: R. Velmurugan Publisher: CRC Press ISBN: 1003803024 Category : Technology & Engineering Languages : en Pages : 364
Book Description
Summarizing the recent advances in high strain rate testing, this book discusses techniques for designing, executing, analyzing, and interpreting the results of experiments involving the dynamic behavior of multifunctional materials such as metals, polymers, fiber-reinforced polymers, hybrid laminates and so forth. The book also discusses analytical and numerical modeling of materials under high-velocity impact loading and other environmental conditions. Recent advances in characterization techniques such as digital image correlation and computed tomography for high strain rate applications are included. Features Presents exclusive material on high-rate properties of fiber-reinforced composites Provides numerical techniques on the analysis and enriched data on the high strain rate behavior of materials Explores cutting-edge techniques and experimental guidelines for an array of different materials subjected to high strain rate loading Explains clear understanding of material behavior at various strain rates Reviews mechanical response of different materials at high strain rates This book is aimed at researchers and professionals in mechanical, materials, and aerospace engineering.
Author: Viktor Mechtcherine Publisher: Springer ISBN: 9402411941 Category : Technology & Engineering Languages : en Pages : 811
Book Description
This is the proceedings of the 4th International Conference on Strain-Hardening Cement-Based Composites (SHCC4), that was held at the Technische Universität Dresden, Germany from 18 to 20 September 2017. The conference focused on advanced fiber-reinforced concrete materials such as strain-hardening cement-based composites (SHCC), textile-reinforced concrete (TRC) and high-performance fiber-reinforced cement-based composites (HPFRCC). All these new materials exhibit pseudo-ductile behavior resulting from the formation of multiple, fine cracks when subject to tensile loading. The use of such types of fiber-reinforced concrete could revolutionize the planning, development, dimensioning, structural and architectural design, construction of new and strengthening and repair of existing buildings and structures in many areas of application. The SHCC4 Conference was the follow-up of three previous successful international events in Stellenbosch, South Africa in 2009, Rio de Janeiro, Brazil in 2011, and Dordrecht, The Netherlands in 2014.
Author: S. R. Reid Publisher: Elsevier ISBN: 1855738902 Category : Technology & Engineering Languages : en Pages : 318
Book Description
This study covers impact response, damage tolerance and failure of fibre-reinforced composite materials and structures. Materials development, analysis and prediction of structural behaviour and cost-effective design all have a bearing on the impact response of composites and this book brings together for the first time the most comprehensive and up-to-date research work from leading international experts. State of the art analysis of impact response, damage tolerance and failure of FRC materials Distinguished contributors provide expert analysis of the most recent materials and structures Valuable tool for R&D engineers, materials scientists and designers
Author: AE. Brown
Author: AE. Brown
Author: A. R. Bunsell
Author: R. Velmurugan
Author: Thomas J. Frey
Author: T.Z. Blazynski
Author: Eugene T. Camponeschi
Author: Viktor Mechtcherine
Author: Richard Chait
Author: G. Yaniv
Author: S. R. Reid