Damage Tolerance Of Thick Section Composites Subjected To Ballistic Impact

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Damage Tolerance of Thick-Section Composites Subjected to Ballistic Impact

Author : Bruce K. Fink
Publisher :
ISBN 13 : 9781423530244
Total Pages : 193 pages
Book Rating : 4.5/5 (32 download)

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Book Synopsis Damage Tolerance of Thick-Section Composites Subjected to Ballistic Impact by : Bruce K. Fink

Download or read book Damage Tolerance of Thick-Section Composites Subjected to Ballistic Impact written by Bruce K. Fink and published by . This book was released on 2001-05-01 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are two predominate modes of failure in a compressively loaded laminate that has been subjected to ballistic damage. Analysis has shown that the stress concentration and the membrane failure are sensitive to the in-plane stiffness matrix of the damaged region, while delamination growth failure is dependent on the size and location of the damage as well as the fracture toughness of the material. An experimental study investigated means of improving damage tolerance ranging from resin toughness to through-thickness stitching. From the experimental study, it was found that improving fracture toughness by through-the-thickness stitching resulted in a reduction in damage size. Stitching may cause severe reductions in stiffness of the damage region as projectile energy is absorbed through the fiber breakage and pullout mechanisms. Thus, while stitching improves multi-impact performance, it may also lead to an increase in fiber damage, causing the compression after ballistic impact (CABI) failure mode to shift from delamination growth to membrane failure. A design trade-off exists between maximum fracture toughness and stiffness reduction induced within the ballistically damaged region. By examining the factors affecting residual strength (i.e., fracture toughness, inclusion stiffness, loading condition, and finite width effects) the methodology to develop design chart may be produced to optimize damage tolerance.

Damage Tolerance of Thick-Section Composites Subjected to Ballistic Impact

Author :
Publisher :
ISBN 13 :
Total Pages : 193 pages
Book Rating : 4.:/5 (946 download)

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Book Synopsis Damage Tolerance of Thick-Section Composites Subjected to Ballistic Impact by :

Download or read book Damage Tolerance of Thick-Section Composites Subjected to Ballistic Impact written by and published by . This book was released on 2001 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are two predominate modes of failure in a compressively loaded laminate that has been subjected to ballistic damage. Analysis has shown that the stress concentration and the membrane failure are sensitive to the in-plane stiffness matrix of the damaged region, while delamination growth failure is dependent on the size and location of the damage as well as the fracture toughness of the material. An experimental study investigated means of improving damage tolerance ranging from resin toughness to through-thickness stitching. From the experimental study, it was found that improving fracture toughness by through-the-thickness stitching resulted in a reduction in damage size. Stitching may cause severe reductions in stiffness of the damage region as projectile energy is absorbed through the fiber breakage and pullout mechanisms. Thus, while stitching improves multi-impact performance, it may also lead to an increase in fiber damage, causing the compression after ballistic impact (CABI) failure mode to shift from delamination growth to membrane failure. A design trade-off exists between maximum fracture toughness and stiffness reduction induced within the ballistically damaged region. By examining the factors affecting residual strength (i.e., fracture toughness, inclusion stiffness, loading condition, and finite width effects) the methodology to develop design chart may be produced to optimize damage tolerance.

Damage Tolerance of Thick-section Composites Subjected to Ballistic Impact

Author : Ahmed M. Monib
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Damage Tolerance of Thick-section Composites Subjected to Ballistic Impact by : Ahmed M. Monib

Download or read book Damage Tolerance of Thick-section Composites Subjected to Ballistic Impact written by Ahmed M. Monib and published by . This book was released on 1999 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hybrid Carbon-Glass Fiber/Toughened Epoxy Thick Composite Joints Subject to Drop-Weight and Ballistic Impacts

Author :
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Hybrid Carbon-Glass Fiber/Toughened Epoxy Thick Composite Joints Subject to Drop-Weight and Ballistic Impacts by :

Download or read book Hybrid Carbon-Glass Fiber/Toughened Epoxy Thick Composite Joints Subject to Drop-Weight and Ballistic Impacts written by and published by . This book was released on 2007 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ARO project from City College of City University of New York (CCNY of CUNY) was submitted in response to ARO's FY 2002 DoD Instrumentation and Research Support for Hispanic Serving Institutions (HSIs), BAA No. DAAD19-02-R-0010 to conduct research on hybrid carbon-S2 glass fiber/toughened epoxy thick-section, hybrid interwoven composite joints subject to drop-weight and ballistic impacts. Dr. Basavaraju B. Raju of U.S. Army TACOM-TARDEC was the research collaborator and Dr. Bruce LaMattina of ARO was the program manager. The main objectives of this project are (1) to conduct tensile, drop-weight impact and ballistic impact tests of monolithic S2 glass fiber/toughened epoxy composites and hybrid carbon-S2 glass fiber/toughened epoxy composites, (2) to verify the experimental results using damage-mechanics based, 3-D dynamic nonlinear finite element method embedded in a commercial software package, LS-DYNA, (i.e., a combined experimental-numerical approach was used in the research), (3) to provide data of research results to supplement Army's current missions in the FCS, (4) to enhance the proposers' research capabilities on composites at their institute through interaction with Army researchers and facilities so that they may participate in Army's mainstream research in the future, and (5) to involve graduate and undergraduate students, especially those from underrepresented minorities, actively in the research so that they can gain meaningful research experience and may develop interest in pursuing advanced degrees in engineering. It is believed that results obtained in this study could benefit several Army missions and current interests in the development and implementation of Future Combat Systems (FCS), such as damage tolerance and ballistic impact study of composite integral armors (CIAs) for composite armored vehicles (CAVs) demonstrator, rotary-wing structures technology (RWST) for RAH-66 Comanche's lower forward fuselage demonstrator, etc.

Impact Damage Tolerance of Composites Exposed to Hot, Cold and Wet Environments

Author : V. Sarma Avva
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Impact Damage Tolerance of Composites Exposed to Hot, Cold and Wet Environments by : V. Sarma Avva

Download or read book Impact Damage Tolerance of Composites Exposed to Hot, Cold and Wet Environments written by V. Sarma Avva and published by . This book was released on 1991 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the present study was to determine the failure threshold (with respect to energy level of impact) of Torlon-C/graphite/glass and APC-2 composite materials, with the samples being conditioned and tested at predetermined hygrothermal environments. A test matrix involving ply-orientations, temperature ( -60 deg F, 75 deg F, 180 deg F and 280 deg F) and humidities (15%, 50% and 100% RH) was created. For each test condition of the matrix, the failure threshold was developed by subjecting compression coupons to impact damage at various energy levels with a 12.7 mm (0.5) diameter aluminum projectile. The forward velocities used in the tests ranged from 27.4 to 152.4 m/s (90 to 500 ft/s). The behavior of composite materials under the combined effects of impact, humidity and temperature has been a topic of concern among investigators. Much of the research currently available has focused upon the effect of a single factor (e.g. impact), or the effect of humidity and temperature. The purpose of this study was to investigate the combined effect of all these factors on the degradation of laminates.

Dynamic Failure of Composite and Sandwich Structures

Author : Serge Abrate
Publisher : Springer Science & Business Media
ISBN 13 : 9400753292
Total Pages : 646 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Dynamic Failure of Composite and Sandwich Structures by : Serge Abrate

Download or read book Dynamic Failure of Composite and Sandwich Structures written by Serge Abrate and published by Springer Science & Business Media. This book was released on 2012-11-02 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a broad view of the current state of the art regarding the dynamic response of composite and sandwich structures subjected to impacts and explosions. Each chapter combines a thorough assessment of the literature with original contributions made by the authors. The first section deals with fluid-structure interactions in marine structures. The first chapter focuses on hull slamming and particularly cases in which the deformation of the structure affects the motion of the fluid during the water entry of flexible hulls. Chapter 2 presents an extensive series of tests underwater and in the air to determine the effects of explosions on composite and sandwich structures. Full-scale structures were subjected to significant explosive charges, and such results are extremely rare in the open literature. Chapter 3 describes a simple geometrical theory of diffraction for describing the interaction of an underwater blast wave with submerged structures. The second section addresses the problem of impact on laminated composite structures with chapters devoted to ballistic impacts on pre-stressed composite structures, tests developed to simulate dynamic failure in marine structures, damage mechanisms and energy absorption in low velocity impacts, perforation, the numerical simulation of intra and inter-ply damage during impact, and hail impact on laminated composites. Sandwich structures with laminated facings are considered in Section 3 with chapters dealing with the discrete modeling of honeycomb core during the indentation of sandwich structures, the behavior of fold core sandwich structures during impact, and impact on helicopter blades. The fourth section consists of two chapters presenting experimental results and numerical simulation of composite structures subjected to crash. This volume is intended for advanced undergraduate and graduate students, researchers, and engineers interested and involved in analysis and design of composite structures.

Damage Tolerance in Advanced Composites

Author : Golam Newaz
Publisher : Routledge
ISBN 13 : 1351456717
Total Pages : 169 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Damage Tolerance in Advanced Composites by : Golam Newaz

Download or read book Damage Tolerance in Advanced Composites written by Golam Newaz and published by Routledge. This book was released on 2018-12-13 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This recent book provides a detailed presentation of damage tolerance assessment and characterization methods for advanced composites, as well as an examination of the role of damage tolerance in the design of composites. Included are analytical models for different types of damage in different composite materials. Tables provide helpful reference

American Society of Composites-28th Technical Conference

Author : Charles Bakis
Publisher : DEStech Publications, Inc
ISBN 13 : 1605951072
Total Pages : 1892 pages
Book Rating : 4.6/5 (59 download)

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Book Synopsis American Society of Composites-28th Technical Conference by : Charles Bakis

Download or read book American Society of Composites-28th Technical Conference written by Charles Bakis and published by DEStech Publications, Inc. This book was released on 2013-11-01 with total page 1892 pages. Available in PDF, EPUB and Kindle. Book excerpt: New and unpublished U.S. and international research on multifunctional, active, biobased, SHM, self-healing composites -- from nanolevel to large structures New information on modeling, design, computational engineering, manufacturing, testing Applications to aircraft, bridges, concrete, medicine, body armor, wind energy This fully searchable CD-ROM contains 135 original research papers on all phases of composite materials. The document provides cutting edge research by US, Canadian, and Japanese authorities on matrix-based and fiber composites from design to damage analysis and detection. Major divisions of the work include: Structural Health Monitoring, Multifunctional Composites, Integrated Computational Materials Engineering, Interlaminar Testing, Analysis-Shell Structures, Thermoplastic Matrices, Analysis Non-classical Laminates, Bio-Based Composites, Electrical Properties, Dynamic Behavior, Damage/Failure, Compression-Testing, Active Composites, 3D Reinforcement, Dielectric Nanocomposites, Micromechanical Analysis, Processing, CM Reinforcement for Concrete, Environmental Effects, Phase-Transforming, Molecular Modeling, Impact.

Effects of Ballistic Impact Damage on Thin and Thick Composites

Author : Zahid Iqbal Baig
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.:/5 (39 download)

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Book Synopsis Effects of Ballistic Impact Damage on Thin and Thick Composites by : Zahid Iqbal Baig

Download or read book Effects of Ballistic Impact Damage on Thin and Thick Composites written by Zahid Iqbal Baig and published by . This book was released on 1997 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Damage is dependent on the thickness of the laminate and is more in thicker laminates. Damage is always more towards the exit side than the entry surface. A model of bullet penetration into a composite laminate is presented and the failure due to interlaminar shear stresses was explained through this model. The model was verified using a quasi-static Finite Element analysis. It was demonstrated that outer-most ply of the laminate fails first and maximum inter-laminar shear stresses occur between two outer-most plies, causing delamination. It was also demonstrated that inter-laminar shear stresses increase progressively, as the number of effective plies in the laminate reduce due to failure and it is strongly dependent on the stacking sequence.

American Society of Composites, Fourteenth International Conference Proceedings

Author : Amer Society Composi
Publisher : CRC Press
ISBN 13 : 9781566767910
Total Pages : 1030 pages
Book Rating : 4.7/5 (679 download)

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Book Synopsis American Society of Composites, Fourteenth International Conference Proceedings by : Amer Society Composi

Download or read book American Society of Composites, Fourteenth International Conference Proceedings written by Amer Society Composi and published by CRC Press. This book was released on 1999-10-25 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conference proceedings of the Fourteenth American Society for Composites held on the September 27-29 1999 at the Holiday Inn-1675 Conference Centre, Fairborn, Ohio.

Impact Studies of Composite Materials

Author : Mohamed Thariq Hameed Sultan
Publisher : Springer Nature
ISBN 13 : 9811613230
Total Pages : 217 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis Impact Studies of Composite Materials by : Mohamed Thariq Hameed Sultan

Download or read book Impact Studies of Composite Materials written by Mohamed Thariq Hameed Sultan and published by Springer Nature. This book was released on 2021-05-22 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the impact of different range of velocities (low, high, ballistic and hyper-velocity impact) on composites. Presented through experimental and numerical analysis, the book goes beyond impact event analysis and also covers the after-impact phenomena, including flexural and compression and damage analysis through destructive and non-destructive evaluations. The analyses presented from either experimental or numerical simulations are composed of micro and macrographs images, illustrations, tables and figures with inclusive discussions and supportive evidences from recent studies on composites. This book also highlights the potential applications of composites through the lens of their impact properties, in different industries such as automotive and defence applications. Generally, this book benefits wider range of readers including the industrial practitioners, researchers, lecturer and students, who are working in the fields related to impact and damage analysis, including the structural health monitoring of composites, either experimentally or numerically.

Revolutionary Materials

Author : Sampe
Publisher : CRC Press
ISBN 13 : 9781587160622
Total Pages : 1054 pages
Book Rating : 4.1/5 (66 download)

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Book Synopsis Revolutionary Materials by : Sampe

Download or read book Revolutionary Materials written by Sampe and published by CRC Press. This book was released on 2000-11-06 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the Twelfth U.S.-Japan Conference on Composite Materials

Author : P. K. Mallick
Publisher : DEStech Publications, Inc
ISBN 13 : 1932078614
Total Pages : 828 pages
Book Rating : 4.9/5 (32 download)

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Book Synopsis Proceedings of the Twelfth U.S.-Japan Conference on Composite Materials by : P. K. Mallick

Download or read book Proceedings of the Twelfth U.S.-Japan Conference on Composite Materials written by P. K. Mallick and published by DEStech Publications, Inc. This book was released on 2006 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Fundamental Issues and Applications of Shock-Wave and High-Strain-Rate Phenomena

Author : K.P. Staudhammer
Publisher : Elsevier
ISBN 13 : 0080550770
Total Pages : 715 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Fundamental Issues and Applications of Shock-Wave and High-Strain-Rate Phenomena by : K.P. Staudhammer

Download or read book Fundamental Issues and Applications of Shock-Wave and High-Strain-Rate Phenomena written by K.P. Staudhammer and published by Elsevier. This book was released on 2001-02-08 with total page 715 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of EXPLOMETTM 2000, International Conference on Fundamental Issues and Applications of Shock-Wave and High-Strain-Rate Phenomena, held in Albuquerque, New Mexico, 2000; the fifth in the EXPLOMETTM quinquennial series which began in Albuquerque in 1980. The book is divided into five major sections with a total of 85 chapters. Section I deals with materials issues in shock and high strain rates while Section II covers shock consolidation, reactions, and synthesis. Materials aspects of ballistic and hypervelocity impact are covered in Section III followed by modeling and simulation in Section IV and a range of novel applications of shock and high-strain-rate phenomena in Section V. Like previous conference volumes published in 1980, 1985, and 1995, the current volume includes contributions from fourteen countries outside the United States. As a consequence, it is hoped that this book will serve as a global summary of current issues involving shock and high-strain-rate phenomena as well as a general reference and teaching componant for specializd curricula dealing with these features in a contemporary way. Over the past twenty years, the EXPLOMETTM Conferences have created a family of participants who not only converse every five years but who have developed long-standing interactions and professional relationships which continue to stimulate new concepts and applications particularly rooted in basic materials behavior.

Impact Behaviour of Fibre-Reinforced Composite Materials and Structures

Author : S. R. Reid
Publisher : Elsevier
ISBN 13 : 1855738902
Total Pages : 318 pages
Book Rating : 4.8/5 (557 download)

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Book Synopsis Impact Behaviour of Fibre-Reinforced Composite Materials and Structures by : S. R. Reid

Download or read book Impact Behaviour of Fibre-Reinforced Composite Materials and Structures written by S. R. Reid and published by Elsevier. This book was released on 2000-10-12 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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

Dynamic Deformation, Damage and Fracture in Composite Materials and Structures

Author : Vadim Silberschmidt
Publisher : Elsevier
ISBN 13 : 0128239808
Total Pages : 666 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Dynamic Deformation, Damage and Fracture in Composite Materials and Structures by : Vadim Silberschmidt

Download or read book Dynamic Deformation, Damage and Fracture in Composite Materials and Structures written by Vadim Silberschmidt and published by Elsevier. This book was released on 2022-09-15 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Deformation, Damage and Fracture in Composite Materials and Structures, Second Edition reviews various aspects of dynamic deformation, damage and fracture, mostly in composite laminates and sandwich structures, and in a broad range of application areas including aerospace, automotive, defense and sports engineering. This book examines low- and high-velocity loading and assesses shock, blast and penetrative events, and has been updated to cover important new developments such as the use of additive manufacturing to produce composites, including fiber-reinforced ones. New microstructural, experimental, theoretical, and numerical studies with advanced tools are included as well. The book also features four new chapters covering topics such as dynamic delamination, dynamic deformation and fracture in 3D-printed composites, ballistic impacts with fragmenting projectiles, and the effect of multiple impacting. Examines dynamic deformation and fracture of composite materials, covering experimental, analytical and numerical aspects Features four new chapters covering topics such as dynamic interfacial fracture, fracture in 3D-printed composites, ballistic impacts with fragmenting projectiles, and the effect of multiple impacting Addresses important application areas such as aerospace, automotive, wind energy, defense and sports

Advanced Fibrous Composite Materials for Ballistic Protection

Author : Xiaogang Chen
Publisher : Woodhead Publishing
ISBN 13 : 1782424849
Total Pages : 550 pages
Book Rating : 4.7/5 (824 download)

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Book Synopsis Advanced Fibrous Composite Materials for Ballistic Protection by : Xiaogang Chen

Download or read book Advanced Fibrous Composite Materials for Ballistic Protection written by Xiaogang Chen and published by Woodhead Publishing. This book was released on 2016-01-21 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Fibrous Composite Materials for Ballistic Protection provides the latest information on ballistic protection, a topic that remains an important issue in modern times due to ever increasing threats coming from regional conflicts, terrorism, and anti-social behavior. The basic requirements for ballistic protection equipment are first and foremost, the prevention of a projectile from perforating, the reduction of blunt trauma to the human body caused by ballistic impact, the necessity that they are thermal and provide moisture comfort, and that they are lightweight and flexible to guarantee wearer’s mobility. The main aim of this book is to present some of the most recent developments in the design and engineering of woven fabrics and their use as layering materials to form composite structures for ballistic personal protection. Chapter topics include High Performance Ballistic Fibres, Ultra-High Molecular Weight Polyethylene (UHMWPE), Ballistic Damage of Hybrid Composite Materials, Analysis of Ballistic Fabrics and Layered Composite Materials, and Multi-Scale Modeling of Polymeric Composite Materials for Ballistic Protection. Contributions from leading experts in the field Cutting edge developments on the engineering of ballistic materials Comprehensive analysis of the development and uses of advanced fibrous composite materials