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Author : Sumanta Kumar Nayak
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (82 download)
Download or read book Design Optimization of Honeycomb Sandwich Panels for Blast Load Mitigation written by Sumanta Kumar Nayak and published by . This book was released on 2012 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sumanta Kumar Nayak
Publisher :
ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (688 download)
Download or read book Optimization of Honeycomb Core Sandwich Panel to Mitigate the Effects of Air Blast Loading written by Sumanta Kumar Nayak and published by . This book was released on 2010 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Velmurugan
Publisher : CRC Press
ISBN 13 : 1003803024
Total Pages : 364 pages
Book Rating : 4.0/5 (38 download)
Download or read book Composite Materials written by R. Velmurugan and published by CRC Press. This book was released on 2023-12-05 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Hong Su
Publisher :
ISBN 13 : 9781267215130
Total Pages : pages
Book Rating : 4.2/5 (151 download)
Download or read book Energy Absorption Capabilities of Composite Sandwich Panels Under Blast Loads written by Hong Su and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As blast threats on military and civilian structures continue to be a significant concern, there remains a need for improved design strategies to increase blast resistance capabilities. The approach to blast resistance proposed here is focused on dissipating the high levels of pressure induced during a blast through maximizing the potential for energy absorption of composite sandwich panels, which are a competitive structural member type due to the inherent energy absorption capabilities of fiber reinforced polymer (FRP) composites. Furthermore, the middle core in the sandwich panels can be designed as a sacrificial layer allowing for a significant amount of deformation or progressive failure to maximize the potential for energy absorption. The research here is aimed at the optimization of composite sandwich panels for blast mitigation via energy absorption mechanisms. The energy absorption mechanisms considered include absorbed strain energy due to inelastic deformation as well as energy dissipation through progressive failure of the core of the sandwich panels. The methods employed in the research consist of a combination of experimentally-validated finite element analysis (FEA) and the derivation and use of a simplified analytical model. The key components of the scope of work then includes: establishment of quantified energy absorption criteria, validation of the selected FE modeling techniques, development of the simplified analytical model, investigation of influential core architectures and geometric parameters, and investigation of influential material properties. For the parameters that are identified as being most-influential, recommended values for these parameters are suggested in conceptual terms that are conducive to designing composite sandwich panels for various blast threats. Based on reviewing the energy response characteristic of the panel under blast loading, a non-dimensional parameter AE T / E T (absorbed energy, AE T, normalized by total energy, E T) was suggested to compare energy absorption capabilities of the structures under blast loading. In addition, AE web / E T (where AE web is the energy absorbed by the middle core) was also employed to evaluate the energy absorption contribution from the web. Taking advantage of FEA and the simplified analytical model, the influences of material properties as well as core architectures and geometries on energy absorption capabilities (quantified by AE T / E T and AE web / E T) were investigated through parametric studies. Results from the material property investigation indicated that density of the front face sheet and strength were most influential on the energy absorption capability of the composite sandwich panels under blast loading. The study to investigate the potential effectiveness of energy absorbed via inelastic deformation compared to energy absorbed via progressive failure indicated that for practical applications (where the position of bomb is usually unknown and the panel is designed to be the same anywhere), the energy absorption via inelastic deformation is the more efficient approach. Regarding the geometric optimization, it was found that a core architecture consisting of vertically-oriented webs was ideal. The optimum values for these parameters can be generally described as those which cause the most inelasticity, but not failure, of the face sheets and webs.
Author : C. Guedes Soares
Publisher : CRC Press
ISBN 13 : 1000683311
Total Pages : 1325 pages
Book Rating : 4.0/5 (6 download)
Download or read book Trends in Maritime Technology and Engineering written by C. Guedes Soares and published by CRC Press. This book was released on 2022-06-07 with total page 1325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trends in Maritime Technology and Engineering comprises the papers presented at the 6th International Conference on Maritime Technology and Engineering (MARTECH 2022) that was held in Lisbon, Portugal, from 24-26 May 2022. The Conference has evolved from the series of biennial national conferences in Portugal, which have become an international event, and which reflect the internationalization of the maritime sector and its activities. MARTECH 2022 is the sixth of this new series of biennial conferences. The book covers all aspects of maritime activity, including in Volume 1: Structures, Hydrodynamics, Machinery, Control and Design. In Volume 2: Maritime Transportation and Ports, Maritime Traffic, Safety, Environmental Conditions, Renewable Energy, Oil & Gas, and Fisheries and Aquaculture. Trends in Maritime Technology and Engineering aims at academics and professionals in the above mentioned fields.
Author : Anand Kumar Singh
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (812 download)
Download or read book Blast Mitigation Studies for All Metal Plate and Honeycomb Sandwich Panels written by Anand Kumar Singh and published by . This book was released on 2012 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yunn-Chih Chi
Publisher :
ISBN 13 :
Total Pages : 276 pages
Book Rating : 4.:/5 (32 download)
Download or read book The Response of Honeycomb Sandwich Panels to Blast Loads written by Yunn-Chih Chi and published by . This book was released on 2008 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tirupathi Chandrupatla
Publisher : Cambridge University Press
ISBN 13 : 1108841414
Total Pages : 519 pages
Book Rating : 4.1/5 (88 download)
Download or read book Introduction to Finite Elements in Engineering written by Tirupathi Chandrupatla and published by Cambridge University Press. This book was released on 2021-10-21 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now thoroughly updated, the fifth edition features improved pedagogy, enhanced introductory material, and new digital teaching supplements.
Author : M. Farshad
Publisher : Springer Science & Business Media
ISBN 13 : 9401712271
Total Pages : 425 pages
Book Rating : 4.4/5 (17 download)
Download or read book Design and Analysis of Shell Structures written by M. Farshad and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shell structures are widely used in the fields of civil, mechanical, architectural, aeronautical, and marine engineering. Shell technology has been enhanced by the development of new materials and prefabrication schemes. Despite the mechanical advantages and aesthetic value offered by shell structures, many engineers and architects are relatively unacquinted with shell behaviour and design. This book familiarizes the engineering and architectural student, as well as the practicing engineer and architect, with the behaviour and design aspects of shell structures. Three aspects are presented: the Physical behaviour, the structural analysis, and the design of shells in a simple, integrated, and yet concise fashion. Thus, the book contains three major aspects of shell engineering: (1) physical understanding of shell behaviour; (2) use of applied shell theories; and (3) development of design methodologies together with shell design examples. The theoretical tools required for rational analysis of shells are kept at a modest level to give a sound grasp of the fundamentals of shell behaviour and, at the same time, an understanding of the related theory, allowing it to be applied to actual design problems. To achieve a physical understanding of complex shell behaviour, quantitative presentations are supplemented by qualitative discussions so that the reader can grasp the `physical feeling' of shell behaviour. A number of analysis and detailed design examples are also worked out in various chapters, making the book a useful reference manual. This book can be used as a textbook and/or a reference book in undergraduate as well as graduate university courses in the fields of civil, mechanical, architectural, aeronautical, and materials engineering. It can also be used as a reference and design-analysis manual for the practicing engineers and architects. The text is supplemented by a number of appendices containing tables of shell analysis and design charts and tables.
Author : Sandra P. Walker
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (317 download)
Download or read book Evaluation of Composite Honeycomb Sandwich Panels Under Compressive Loads at Elevated Temperatures written by Sandra P. Walker and published by . This book was released on 1998 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. W. Ringsberg
Publisher : CRC Press
ISBN 13 : 1000913732
Total Pages : 921 pages
Book Rating : 4.0/5 (9 download)
Download or read book Advances in the Analysis and Design of Marine Structures written by J. W. Ringsberg and published by CRC Press. This book was released on 2023-04-14 with total page 921 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the Analysis and Design of Marine Structures is a collection of papers presented at MARSTRUCT 2023, the 9th International Conference on Marine Structures, held in Gothenburg, Sweden, 3-5 April 2023. The conference was organised by the Division of Marine Technology, Department of Mechanics and Maritime Sciences at Chalmers University of Technology, in Gothenburg, Sweden. The MARSTRUCT Conference series deals with Ship and Offshore Structures, addressing topics in the fields of: Methods and tools for loads and load effects Methods and tools for strength assessment Experimental analysis of structures Materials and fabrication of structures Methods and tools for structural design and optimization Structural reliability, safety, and environmental protection The MARSTRUCT conferences series of started in Glasgow, UK in 2007, the second event of the series took place in Lisbon, Portugal in March 2009, the third in Hamburg, Germany in March 2011, the fourth in Espoo, Finland in March 2013, the fifth in Southampton, UK in March 2015, the sixth in Lisbon, Portugal in May 2017, the seventh in Dubrovnik, Croatia in May 2019, and the eighth event in Trondheim, Norway in June 2021. Advances in the Analysis and Design of Marine Structures is essential reading for academics, engineers and all professionals involved in the design of marine and offshore structures. The Proceedings in Marine Technology and Ocean Engineering series is devoted to the publication of proceedings of peer-reviewed international conferences dealing with various aspects of ‘Marine Technology and Ocean Engineering’. The Series includes the proceedings of the following conferences: the International Maritime Association of the Mediterranean (IMAM) Conferences, the Marine Structures (MARSTRUCT) Conferences, the Renewable Energies Offshore (RENEW) Conferences and the Maritime Technology (MARTECH) Conferences. The ‘Marine Technology and Ocean Engineering’ series is also open to new conferences that cover topics on the sustainable exploration and exploitation of marine resources in various fields, such as maritime transport and ports, usage of the ocean including coastal areas, nautical activities, the exploration and exploitation of mineral resources, the protection of the marine environment and its resources, and risk analysis, safety and reliability. The aim of the series is to stimulate advanced education and training through the wide dissemination of the results of scientific research.
Author : S. Syngellakis
Publisher : WIT Press
ISBN 13 : 1784663999
Total Pages : 170 pages
Book Rating : 4.7/5 (846 download)
Download or read book Structures Under Shock and Impact XVI written by S. Syngellakis and published by WIT Press. This book was released on 2020-08-19 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing need to protect civilian infrastructure and industrial facilities against unintentional loads arising from accidental impact and explosion events as well as terrorist attacks is of major importance. While advances have been made in recent years, many challenges remain, such as to develop more effective and efficient blast and impact mitigation approaches than those that currently exist. The primary focus remains the survivability of physical facilities and the protection of people, as well as reducing economic losses and impact on the environment, with emphasis on innovative protective technologies to support the needs of an economically growing, modern society. The application of this technology ranges from the safe transportation of people and dangerous materials to defences against natural hazards such as floods, wind, storms, tsunamis and earthquakes. Large scale testing is prohibitive and small scale laboratory testing results in scaling uncertainties. Continuing research is therefore essential to improve knowledge on how these structures behave under a variety of load actions, some of which interact making it even more complex and difficult to define. Consequently, more use of advanced numerical simulations for load and structural response calculations is common practice in industry and research. Such calculations can directly be used in design and risk assessment calculations, but also be applied to more simplified design tools and design codes. Whether numerical or analytical modelling techniques are employed, experimental validation is vital for there to be acceptance of the approach to be used. The included papers, presented at the 16th International Conference on Structures under Shock and Impact, highlight new research ideas and results to promote a better understanding of the critical issues relating to the testing behaviour, modelling and analyses of protective structures against blast and impact loading.
Author : Sameh Yaken Aref Ahmed
Publisher :
ISBN 13 :
Total Pages : 209 pages
Book Rating : 4.:/5 (111 download)
Download or read book Investigation of Multi Suppressive Layers Under Impact Load written by Sameh Yaken Aref Ahmed and published by . This book was released on 2016 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, mitigation of blast effects has become one of the major challenges in structural engineering. In this regard, sandwich panels are considered attractive systems for blast mitigation applications. This is contributed to their considerable energy absorption capability compared to solid panels of the same weight. These sandwich panels can have different inner core configurations to provide adequate stiffness, strength, and energy absorption for resisting different blast loads. This research evaluates numerically the effectiveness of using woven shapes as a new core topology in sandwich panels to act as a suppressive layer for resisting blast loads. The new shape has been studied for both fibre reinforced polymer (FRP) sandwich panels and metallic sandwich panels. The numerical models have been created using nonlinear explicit finite element simulation. Each model has been validated using available data in the literature that uses honeycomb and folded shapes. The results of proposed woven shapes have been compared to those of honeycomb and folded shapes to examine the effectiveness of using woven shape in blast mitigation. Throughout the study, twelve FRP panels with different inner core configurations are proposed to enhance panels' performance by reducing their peak deformation and increasing their energy dissipation. A parametric study was conducted on the best performing inner core configurations to achieve the highest resistance for blast loads. Moreover, the study investigates the effect of filling the FRP sandwich panels with sand, polyurethane foam, and dytherm foam on the panels' blast resistance. In order to generalize the findings of this research, other panels with the new proposed inner core configurations are simulated using stainless steel instead of FRP. Finally, the effect of changing the outer layers' thickness, applying successive blast loads on the same sandwich panels, and changing scaled distance has been investigated for metallic sandwich panels. Comparing woven shapes to honeycomb and folded shapes shows that using sandwich panels with woven shapes provides a better impulsive resistance.
Author : Luis Fernando Pinho Santos
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (123 download)
Download or read book Design Optimisation of All-steel Rectangular Honeycomb Core Sandwich Panels written by Luis Fernando Pinho Santos and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald Yukio Konishi
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (153 download)
Download or read book Optimum Design of a Flat Honeycomb Sandwich Panel Under In-plane Loading written by Donald Yukio Konishi and published by . This book was released on 1964 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L.A. Carlsson
Publisher : Springer Science & Business Media
ISBN 13 : 1402032250
Total Pages : 392 pages
Book Rating : 4.4/5 (2 download)
Download or read book Structural and Failure Mechanics of Sandwich Composites written by L.A. Carlsson and published by Springer Science & Business Media. This book was released on 2011-04-26 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Structural and Failure Mechanics of Sandwich Composites" by Leif A. Carlsson and George A. Kardomateas focuses on some important deformation and failure modes of sandwich panels such as global buckling, wrinkling and local instabilities, and face/core debonding. The book also provides the mechanics background necessary for understanding deformation and failure mechanisms in sandwich panels and the response of sandwich structural parts to a variety of loadings. Specifically, first-order and high-order sandwich panel theories, and three-dimensional elasticity solutions for the structural behavior outlined in some detail. Elasticity analysis can serve as a benchmark for judging the accuracy of simplified sandwich plate, shell and beam theories. Furthermore, the book reviews test methods developed for the characterization of the constituent face and core materials, and sandwich beams and plates. The characterization of face/core debonding is a major topic of this text, and analysis methods based on fracture mechanics are described and applied to several contemporary test specimens. Test methods and results documented in the literature are included and discussed. The book will benefit structural and materials engineers and researchers with the desire to learn more about structural behavior, failure mechanisms, fracture mechanics and damage tolerance of sandwich structures.
Author : JackR. Vinson
Publisher : Routledge
ISBN 13 : 1351411314
Total Pages : 398 pages
Book Rating : 4.3/5 (514 download)
Download or read book The Behavior of Sandwich Structures of Isotropic and Composite Materials written by JackR. Vinson and published by Routledge. This book was released on 2018-05-04 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Behavior of Sandwich Structures of Isotropic and Composite Materials presents the mathematics, descriptions, and analytical techniques in the growing field of sandwich structures. From a background in sandwich structures to thermoelastic problems of sandwich structures and sandwich shell theory, the book provides the knowledge needed to analyze, design, and optimize various sandwich structures. As one would expect from a book on sandwich structures, this volume discusses special failure modes such as face wrinkling and core shear instability. Coverage includes not only honeycomb cores, but also foam, web, and truss cores. An important topic in composite structure design, optimization is explored in two chapters on sandwich plates and sandwich shells. The author presents the optimization techniques in closed form and the methods are applicable to material selection and geometric design. The book also contains a set of problems and references at the end of each chapter. This text is ideal for engineers-in-training, as well as practical engineers who desire a comprehensive understanding of sandwich structures technology.
