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fastened joints

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... are either mechanically fastened or welded, and invariably, the joint is the most critical area from the performance perspective. An examination of structural and component failures documented in open literature over the past 50 years or so clearly indicates that failures predominantly start at joints...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... Guidelines for mechanically fastened joints Table 17.2 Guidelines for mechanically fastened joints Guidelines Remarks 1. Design the joint first and fill in the gaps afterward; optimizing the basic structure first compromises the joint design and results in low overall structural efficiency...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290207
EISBN: 978-1-62708-306-5
...Abstract Abstract This chapter presents a comprehensive coverage of mechanical fastening methods. It begins with a discussion on the advantages and disadvantages of mechanical fastening followed by sections providing information on mechanically fastened joints and the selection of the correct...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540391
EISBN: 978-1-62708-309-6
.... This appendix discusses stress severity factors associated with fastener holes in attachment joints. crack development fastener holes fatigue analysis stress severity factors THE STRESS SEVERITY FACTOR, K SSF , is an empirical factor that accounts for the geometrical stress concentration effect...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870307
EISBN: 978-1-62708-314-0
..., and automated drilling techniques as well as reaming and countersinking. It discusses various types of fasteners, including rivets, pins, and bolts, along with selection factors and special considerations for composite joints. It also includes information on interference-fit and blind fasteners as well...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... of each of these methods are covered. The factors influencing joint integrity and the main considerations in welding dissimilar metal combinations are also discussed. adhesive bonding brazing ceramics dissimilar metal welding mechanical fastening plastics welding A NUMBER OF materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230441
EISBN: 978-1-62708-298-3
... of surfaces and contours (important for aerodynamic efficiency). These functions would generally be unattainable using mechanical fasteners. Modifying the adhesive to obtain some of these objectives usually would also produce other changes in the properties of the joint, such as in mechanical properties...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... in Fig. 12.17 . In bolt assemblies where the bolt is turned in tightening, the torque required to overcome shank friction is added to the required torque value. Fasteners and nuts must be removed and discarded if they are torqued in excess of the specified amounts. Assembly of seal-type joints...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290001
EISBN: 978-1-62708-306-5
... of Joining Processes 1.2 Fusion Welding 1.3 Solid-State Welding 1.4 Brazing 1.5 Soldering 1.6 Mechanical Fastening 1.7 Adhesive Bonding 1.8 Joint Design Considerations 1.9 Process Selection for Joining Acknowledgments References References 1.1 Sampath K. , Design...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... 10.1016/0378-5963(79)90063-1 The advantages of adhesive bonding include: Bonding provides a more uniform stress distribution than mechanical fasteners by eliminating the individual stress concentration peaks caused by mechanical fasteners. The stress distribution across the joint is much...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780109
EISBN: 978-1-62708-268-6
... nuts, bolts, screws, and other threaded joints. Threaded fasteners can disconnect for any of several reasons, including vibration, inadequate torque (during assembly or maintenance), missing threaded fastener security systems (discussed subsequently), and, in some cases, overtightening. In many...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780131
EISBN: 978-1-62708-268-6
...Abstract Abstract Leaks can occur as the result of several failure causes. This chapter reviews the causes, features, and impact of various types of leaks, namely gasket leaks, O-ring leaks, bond-joint leaks, weld leaks, polyvinyl chloride leaks, valve leaks, and structural leaks. bond...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500289
EISBN: 978-1-62708-317-1
.... Therefore, neither distortion nor embrittlement is present. Pre- and posttreatment of workpieces is rarely necessary. The disadvantages of mechanical joining include: Fasteners do not seal the joint against liquids or gases. Prone to failure at the hole where the fastener goes through...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
... been established. Thermoplastic composites can be mechanically fastened in the same manner as thermoset composites. Initially, there was concern that thermoplastics would creep excessively, resulting in a loss of fastener preload and thus lower joint strengths. Extensive testing has shown...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290079
EISBN: 978-1-62708-306-5
... Oxyacetylene braze welding is a method of oxyfuel gas welding capable of joining many base metals, but it is used primarily on steel and cast iron with a copper alloy filler metal (rod) and a flux. Braze welding is similar to torch brazing with a filler rod, except that joint openings are wider...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270110
EISBN: 978-1-62708-301-0
... Testing Procedure and Results In one type of helicopter flying at high altitudes in mountainous regions, a few failures had been reported at the mixing unit attachment lug joint. The mixing unit is held through fasteners to four lugs, two on top and two at the bottom, welded to two horizontal members...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... assemblies is always a danger and can occur through multiple paths, including cracked-edge potting, cracked paint, failed/cracked sealant, through fasteners, porosity in the skins of cloth or thin unidirectional skins, porous adhesive in lap joints, wicking through aramid fibers, and wicking along foaming...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300363
EISBN: 978-1-62708-323-2
... challenge for the joint replacement hardware. Every little bit of extra material used for fastening can reduce motion. There are many different designs, so patients must consider their lifestyle before deciding on a design; some allow better motion than others. Even the major couple, the ball and socket...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
... from the joint. This type of corrosion is quite common in mechanically fastened joints that become loose with age, allowing movement between the two members. Fretting often appears as rather deep pits on the interface members. Fretting can be controlled by lubricating the faying surfaces, designing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030235
EISBN: 978-1-62708-282-2
... Study innovation Redundant items Recognize human limits Test product design Control malfunctions Fail-safe; visible instrumentation Fewer functions; fewer joints Maintain in fixed limits; overdesign (thicker), etc. Contact faces, bearings; lubrication (wear, friction); seals; consult experts and test...