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shear loading

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091096
EISBN: 978-1-62708-234-1
...Abstract Abstract A 4340 steel shaft, the driving member of a large rotor subject to cyclic loading and frequent overloads, broke after three weeks of operation. The driving shaft contained a shear groove at which the shaft should break if a sudden high overload occurred, thus preventing damage...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001438
EISBN: 978-1-62708-224-2
... the sudden release of the load. Fracture was wholly of the brittle cleavage type except for a small crescent shaped lip at the top right-hand side. In this zone, fracture occurred at an angle of 45 deg to the general plane of fracture, indicative of failure in shear. Failure of the hook had taken place where...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001807
EISBN: 978-1-62708-241-9
...Abstract Abstract Rolling contact fatigue is responsible for a large number of industrial equipment failures. It is also one of the main failure modes of components subjected to rolling contact loading such as bearings, cams, and gears. To better understand such failures, an investigation...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001373
EISBN: 978-1-62708-215-0
... purposes. One of the valves failed by dezincification. The porous copper matrix could not sustain the clamping loads imposed by tightening the pressure relief fitting. The second valve failed by shear overload of the pressure relief fitting. Overload was facilitated by a reduction of cross-sectional area...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001383
EISBN: 978-1-62708-215-0
...Abstract Abstract Several case-hardened and zinc-plated carbon-manganese steel wheel studs fractured in a brittle manner after very limited service life. The fracture surfaces of both front and rear studs showed no sign of fatigue beach marks or deformation in the form of shear lips that would...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... on the section shown in Fig. 9 using a diamond pyramid indenter under a load of 3Kg. The results obtained are plotted in Fig. 17 and show that, whereas the hardness of the basic material was of the order of 180 D.P.H., it was raised to 250 at the sheared edge. A similar test through a flame-cut edge showed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0047813
EISBN: 978-1-62708-229-7
... the crack for repair welding. The crack was opened by striking the small end of the shaft and the shaft was broken 1.3 cm away from the crack in the process. A previous fracture that resulted from torsional loading acting along a plane of maximum shear was revealed almost perpendicular to the axis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... on the inaccessible side. Pin Fasteners Pin fasteners are one-piece fasteners, either solid or tubular, that are used in assemblies in which the load is primarily shear. A malleable collar is sometimes swaged or formed on the pin to secure the joint. Special-Purpose Fasteners Special-purpose fasteners...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c0046505
EISBN: 978-1-62708-219-8
..., which had drastically weakened the remaining metal in the contact area. Other areas of the failure surface showed transgranular cracks. Corrosion of the malleable iron latch was by galvanic action and greatly reduced the shear load the latch was capable of withstanding. If the latch were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001910
EISBN: 978-1-62708-217-4
... were not nitrided, as confirmed through metallography and microhardness testing. These components also had a silicon content nearly double of that specified. Finally, both of the spiral spring pins failed to achieve the 3,900 lb double shear load. One of these pins contained carbon approximately 10...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... by slip seemed to obey a critical resolved shear stress law (Schmid's law). Single crystals could be made to extensively twin rather easily. Today, Sohnke's law is no longer assumed to be valid (although a normal stress facilitates cleavage), and no critical shear stress law based on external loading has...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... to the applied load. The fracture process proceeds by crack growth toward the surface of the specimen, culminating in a region of slant fracture. Radial marks may or may not be present between the central fibrous zone and the shear zone near the surface. When the central fibrous region is examined...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... analysis of the component is necessary. Stress analysis is initially performed in the design stage of a development project. Frequently, principal stresses and maximum shear stresses are important to the designer because both are used in common failure expressions to calculate maximum load capability (e.g...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... project. Frequently, principal stresses and maximum shear stresses are important to the designer because both are used in common failure expressions to calculate maximum load capability (e.g. multiaxial yield criteria). One failure mode theory is the Rankine (or maximum normal stress) criterion, where...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... in direction consistent Dull, fibrous fracture Shear lips Little or no distortion Flat fracture Bright or coarse texture, crystalline, grainy Rays or chevrons point to origin Flat progressive zone with beach marks Overload zone consistent with applied loading direction...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... crack initiation site Fracture surface orientation relative to component geometry and loading conditions Helps separate loading modes I, II, III Identifies macroscale ductile and brittle fracture. (see Fig. 2 ) Both flat fracture and shear lips present on fracture surface Crack...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001459
EISBN: 978-1-62708-234-1
... to compressive of equal or unequal magnitude, it may he due to a shear loading arising from unidirectional or reversed torsion, or it may arise from a highly complex system of loading. In the case where bending and direct loading combine the stress system remains the same and only the stress gradient across...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001840
EISBN: 978-1-62708-241-9
... of the sample, the interface undergoes the shear stress which finally dissembles the cladded bimetal. The shear strength is calculated by dividing the maximum pushing load by contact area of cladding plate and substrate. Also, to be more accurate, the shear strength test was carried out three times for each...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001285
EISBN: 978-1-62708-215-0
... failure; S, shear failure; C, crushing damage. ∼6.l×. Discussion Crushing damage was evident in 87% of the individual wire fracture zones. This damage was caused by overtightening of the clip, which seriously reduced the load-carrying capacity of the rope. Failure of the rope occurred in the leg...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... growth of crack, and the sudden fracture of the remaining cross section. The article discusses the effects of loading and stress distribution on fatigue cracks, and reviews the fatigue behavior of materials when subjected to different loading conditions such as bending and loading. The article examines...