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mechanically fastened joint

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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...
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...
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 240- to 320-grit silicon carbide paper for finishing. In any mechanically fastened joint, high clamp-up forces are beneficial to both static and fatigue strength. High clamp-up produces friction in the joint, delays fastener cocking, and reduces joint movement or ratcheting during fatigue loading...
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...
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
.... , “ Fatigue and Crack Propagation Analysis of Mechanically Fastened Joints ,” Paper 83–0839, presented at the AIAA/ASME/ASCE/AHS 24th Structures, Structural Dynamics and Materials Conference ( Lake Tahoe, NV ), May 1983 (synopsis appears in J. Aircraft , Vol 21 , 1984 , p 225 – 226 ) 10.2514/3.48251...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
.... Consulting a tool specialist is recommended. Holes for rivets and bolts are often drilled with the joint fitted up and temporarily clamped for precise alignment. Such alignment ensures maximum joint strength. Methods used to compensate for these characteristics in mechanical fastening procedures...
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780109
EISBN: 978-1-62708-268-6
... the causes of fractures, bending, interference, or mechanical disconnects. Contamination, incorrect mixing, or poor process control can induce bond-joint failures. Exceeding the bonding agent strength, shelf life, or pot life can also induce bond-joint failures. The failure analysis team can determine...
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...
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 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...
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 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
... the most severe load case. Optimizing for a single load case can produce excessive resin or matrix stresses for the other load cases. 20. If the structure is mechanically fastened, an excess of 40% of the fibers oriented in any one direction is inadvisable. Bearing strength of laminate is adversely...
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 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...
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
... joints and hand joints were treated by cortisone injections near the sore or impaired joint. This worked temporarily in many patients, but the mechanism was not known; it was used as “joint aspirin.” CR6 added to hyaluronic acid reportedly lowers friction of a PDMS rider bovine serum on animal tissue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
..., and others and how it led to the development of a strain-based approach to fatigue and the use of fatigue strength and ductility coefficients. It reviews the three stages of fatigue, beginning with crack initiation followed by crack growth and final fracture. It explains how fracture mechanics can be applied...