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Author : Anonim
Publisher : Unknown
Page : 0 pages
File Size : 46,5 Mb
Release : 2024-07-03
Category : Airplanes
ISBN : 1628703350
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 40,7 Mb
Release : 2006
Category : Metals
ISBN : OCLC:256496335
This document contains design information on the strength properties of metallic materials and elements for aerospace vehicle structures.
Author : Anonim
Publisher : Unknown
Page : 0 pages
File Size : 51,9 Mb
Release : 2023
Category : Airplanes
ISBN : OCLC:1430438215
Author : Anonim
Publisher : Unknown
Page : 900 pages
File Size : 46,5 Mb
Release : 2003
Category : Airplanes
ISBN : PSU:000054418493
Author : Zlatan Kapidzic
Publisher : Linköping University Electronic Press
Page : 53 pages
File Size : 52,6 Mb
Release : 2015-11-02
Category : Electronic
ISBN : 9789176859421
The use of fibre composites in the design of load carrying aircraft structures has been increasing over the last few decades. At the same time, aluminium alloys are still present in many structural parts, which has led to an increase of the number of hybrid composite-aluminium structures. Often, these materials are joined at their interface by bolted connections. Due to their different response to thermal, mechanical and environmental impact, the composite and the aluminium alloy parts are subject to different design and certification practices and are therefore considered separately.The current methodologies used in the aircraft industry lack well-developed methods to account for the effects of the mismatch of material properties at the interface.One such effect is the thermally induced load which arises at elevated temperature due to the different thermal expansion properties of the constituent materials. With a growing number of hybrid structures, these matters need to be addressed. The rapid growth of computational power and development of simulation tools in recent years have made it possible to evaluate the material and structural response of hybrid structures without having to entirely rely on complex and expensive testing procedures.However, as the failure process of composite materials is not entirely understood, further research efforts are needed in order to develop reliable material models for the existing simulation tools. The work presented in this dissertation involves modelling and testing of bolted joints in hybrid composite-aluminium structures.The main focus is directed towards understanding the failure behaviour of the composite material under static and fatigue loading, and how to include this behaviour in large scale models of a typical bolted airframe structure in an efficient way. In addition to that, the influence of thermally induced loads on the strength and fatigue life is evaluated in order to establish a design strategy that can be used in the industrial context. The dissertation is divided into two parts. In the first one, the background and the theory are presented while the second one consists of five scientific papers
Author : Andrew M. Brown
Publisher : Springer Nature
Page : 177 pages
File Size : 43,6 Mb
Release : 2023-02-14
Category : Technology & Engineering
ISBN : 9783031182075
This is the first Structural Dynamics book focused on this indispensable aspect of liquid rocket engine design. This book begins by reviewing basic concepts in Structural Dynamics, including the free and forced response of SDOF and MDOF systems, along with some discussion of how numerical solutions are generated. The book then moves to a discussion of specific applications of these techniques in LREs, progressing from component level (turbomachinery and combustion devices), up through engine system models, and finally to integration with a launch vehicle. Clarifies specific topics including the Campbell and SAFE Diagrams for resonance identification in turbomachinery, the complications of component analysis in the pump side due to a host of complication factors such as acoustic/structure interaction, the "side-loads" fluid/structure interaction problem in overexpanded rocket nozzles, and competing methods for generation overall engine system interface loads. Includes specific examples for illustration while closing with rotordynamic analysis, dynamic data analysis, and vibroacoustics.
Author : Linkan Bian,Nima Shamsaei,John Usher
Publisher : CRC Press
Page : 328 pages
File Size : 55,6 Mb
Release : 2017-08-09
Category : Business & Economics
ISBN : 9781498739993
Laser-Based Additive Manufacturing (LBAM) technologies, hailed by some as the "third industrial revolution," can increase product performance, while reducing time-to-market and manufacturing costs. This book is a comprehensive look at new technologies in LBAM of metal parts, covering topics such as mechanical properties, microstructural features, thermal behavior and solidification, process parameters, optimization and control, uncertainty quantification, and more. The book is aimed at addressing the needs of a diverse cross-section of engineers and professionals.
Author : Sam Fragomeni,Srikanth Venkatesan
Publisher : CRC Press
Page : 956 pages
File Size : 55,8 Mb
Release : 2010-11-18
Category : Technology & Engineering
ISBN : 9780203829868
Incorporating Sustainable Practice in Mechanics of Structures and Materials is a collection of peer-reviewed papers presented at the 21st Australasian Conference on the Mechanics of Structures and Materials (ACMSM21, Victoria, University, Melbourne, Australia, 7th 10th of December 2010). The contributions from academics, researchers and practisin
Author : Brandon Dilworth,Michael Mains
Publisher : Springer Nature
Page : 413 pages
File Size : 50,6 Mb
Release : 2020-10-22
Category : Technology & Engineering
ISBN : 9783030477172
Topics in Modal Analysis & Testing, Volume 8: Proceedings of the 38th IMAC, A Conference and Exposition on Structural Dynamics, 2020, the eighth volume of nine 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 Modal Analysis, including papers on: Operational Modal & Modal Analysis Applications Experimental Techniques Modal Analysis, Measurements & Parameter Estimation Modal Vectors & Modeling Basics of Modal Analysis Additive Manufacturing & Modal Testing of Printed Parts
Author : Wenguang Ma,Russell Elkin
Publisher : CRC Press
Page : 494 pages
File Size : 42,9 Mb
Release : 2021-12-15
Category : Science
ISBN : 9781000484618
Sandwich Structural Composites: Theory and Practice offers a comprehensive coverage of sandwich structural composites. It describes the structure, properties, characterization, and testing of raw materials. In addition, it discusses design and process methods, applications and damage assessments of sandwich structural composites. The book: Offers a review of current sandwich composite lamination processes and manufacturing methods Introduces raw materials, including core materials, skin reinforcements, resin substrates and adhesives Discusses sandwich structure characterization, finite element analysis of the structures, and product design and optimization Describes benefits other than structural, including acoustic, thermal, and fire Details applications in various industries, including aerospace, wind energy, marine ships, recreational boats and vehicles, sport equipment, building construction, and extreme temperature applications The book will be of benefit to industrial practitioners, researchers, academic faculty, and advanced students in materials and mechanical engineering and related disciplines looking to advance their understanding of these increasingly important materials.
Author : Composite Materials Handbook – 17 (CMH-17)
Publisher : SAE International
Page : 778 pages
File Size : 50,5 Mb
Release : 2022-09-06
Category : Technology & Engineering
ISBN : 9781468604955
The first volume of this six-volume compendium contains guidelines for determining the properties of polymer matrix composite material systems and their constituents, as well as the properties of generic structural elements, including test planning, test matrices, sampling, conditioning, test procedure selection, data reporting, data reduction, statistical analysis, and other related topics. Special attention is given to the statistical treatment and analysis of data. Volume 1 contains guidelines for general development of material characterization data as well as specific requirements for publication of material data in CMH-17. The primary purpose of this volume of the handbook is to document industry best-practices for engineering methodologies related to testing, data reduction, and reporting of property data for current and emerging composite materials. It is used by engineers worldwide in designing and fabricating products made from composite materials. The Composite Materials Handbook, referred to by industry groups as CMH-17, is a six-volume engineering reference tool that contains thousands of records of the latest test data for polymer matrix, metal matrix, ceramic matrix, and structural sandwich composites. CMH-17 provides information and guidance necessary to design, analyze, fabricate, certify and support end items using composite materials. It includes properties of composite materials that meet specific data requirements as well as guidelines for design, analysis, material selection, manufacturing, quality control, and repair.
Author : Zachary del Rosario,Gianluca Iaccarino
Publisher : Cambridge Scholars Publishing
Page : 849 pages
File Size : 40,5 Mb
Release : 2024-04-02
Category : Mathematics
ISBN : 9781036402921
Mathematical models power the modern world; they allow us to design safe buildings, investigate changes to the climate, and study the transmission of diseases through a population. However, all models are uncertain: building contractors deviate from the planned design, humans impact the climate unpredictably, and diseases mutate and change. Modern advances in mathematics and statistics provide us with techniques to understand and quantify these sources of uncertainty, allowing us to predict and design with confidence. This book presents a comprehensive treatment of uncertainty: its conceptual nature, techniques to quantify uncertainty, and numerous examples to illustrate sound approaches. Several case studies are discussed in detail to demonstrate an end-to-end treatment of scientific modeling under uncertainty, including framing the problem, building and assessing a model, and answering meaningful questions. The book illustrates a computational approach with the Python package Grama, presenting fully reproducible examples that students and practitioners can quickly adapt to their own problems.
Author : Rikard Benton Heslehurst
Publisher : DEStech Publications, Inc
Page : 470 pages
File Size : 52,7 Mb
Release : 2013
Category : Technology & Engineering
ISBN : 9781605950341
Book presents a comprehensive set of design and analysis equations, as well as technical steps, to enable engineers and technicians to produce and test effective structural joints using composite materials and explaining how composites joints differ from ones made of metal.
Author : Yuri Hovanski,Rajiv Mishra,Yutaka Sato,Piyush Upadhyay,David Yan
Publisher : Springer
Page : 283 pages
File Size : 52,7 Mb
Release : 2019-02-11
Category : Technology & Engineering
ISBN : 9783030057527
This book is a compilation of the recent progress on friction stir technologies including high-temperature applications, industrial applications, dissimilar alloy/materials, lightweight alloys, simulation, control, characterization, and derivative technologies. The volume offers a current look at friction stir welding technology from application to characterization and from modeling to R&D. Contributions document advances in application, controls, and simulation of the friction stir process to aid researchers in seeing the current state-of-the-art.
Author : B. Saha,R.J.H. Wanhill,N. Eswara Prasad,G. Gouda,K. Tamilmani
Publisher : Elsevier Inc. Chapters
Page : 608 pages
File Size : 49,7 Mb
Release : 2013-09-20
Category : Technology & Engineering
ISBN : 9780128068540
Airworthiness regulatory bodies are authorised and responsible for verifying and ensuring the safety and reliability of aircraft. There are many civil and military aviation organisations and regulatory bodies. The functions and responsibilities of several of these organizations are summarised in this chapter. Owing to the importance of aircraft structural fatigue, a survey of fatigue design philosophies is also given. This is followed by (i) a discussion of the airworthiness certification methodology for materials and structures, starting with the initial mill products and proceeding via incremental levels to the finished aircraft; and (ii) an example of material certification for an aluminium–lithium (Al-Li) alloy that is a candidate for use in the airframes of light combat aircraft (LCA).