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transient torsional overloading

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
... Abstract Abstract This article provides information on the development of finite element analysis (FEA) and describes the general-purpose applications of FEA software programs in structural and thermal, static and transient, and linear and nonlinear analyses. It discusses special-purpose finite element...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006773
EISBN: 978-1-62708-295-2
...Abstract Abstract When complex designs, transient loadings, and nonlinear material behavior must be evaluated, computer-based techniques are used. This is where the finite-element analysis (FEA) is most applicable and provides considerable assistance in design analysis as well as failure...
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
...-life criterion gas porosity heat treatment inclusions infinite-life criterion internal bursts macropitting micropitting reversed bending rolling-contact fatigue rotational bending strengthening stress distribution subcase fatigue thermal fatigue torsional loading FATIGUE damage...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002365
EISBN: 978-1-62708-193-1
...) and the estimated notch stress-strain responses for 2024-T4 Al. The high-low overload in (a) produces a tensile mean stress, and the low-high overload in (b) produces the opposite. Adapted from Ref 16 Fig. 16 Unloading and reloading behavior for two rheological models. The first strain history causes...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... different approximations of the fatigue diagram. The shape of the diagram depends mainly on the material, the geometry of the component, and the type of loading (axial, bending, torsion, and shear). The lines are determined by the ultimate tensile strength, S u , and the alternating fatigue strength...
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
... loading; elliptical dimples from shear or torsional loading). Microscale fractographic features help identify the microscopic mechanism(s) causing fracture. Figure 9 ( Ref 8 ) is a summary of the possible microstructural features associated with the basic types of external load conditions (overload...
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
... Rough matte fractures are ductile May indicate transition from fatigue crack growth to overload Rubbing (general) May indicate vibration May show final direction of separation Swirl pattern indicates torsion Rubbing (localized) May indicate crack closure in cyclic loading...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003318
EISBN: 978-1-62708-176-4
... tensile overload can extend the life of a cracked component by retarding the rate of crack advance ( Ref 13 ). This transient crack propagation behavior is often controlled by several mechanisms including crack closure ( Ref 37 ), residual compressive stresses upon unloading ( Ref 31 , 38 , and 39...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005515
EISBN: 978-1-62708-197-9
... Analysis , Weld. J., Res. Suppl. , Vol 42 , 1963 , p 495s – 501s 10. Cheng C.J. , Transient Temperature Distribution during Friction Welding of Two Similar Materials in Tubular Form , Weld. J., Res. Suppl. , Vol 41 ( No. 12 ), 1962 , p 542 – 550 11. Cheng C.J. , Transient...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
...-duty” rear axle fabricated from an AISI Type S7 tool steel failed as a result of a torsional overload. Note that the smaller-diameter section of the shaft has undergone considerable twisting. The axle was intended to have a quenched-and-tempered microstructure, but it was actually underaustenitized...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... steel failed as a result of a torsional overload. Note that the smaller-diameter section of the shaft has undergone considerable twisting. The axle was intended to have a quenched-and-tempered microstructure, but it was actually underaustenitized (or not austenitized at all) during heat treatment...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002366
EISBN: 978-1-62708-193-1
... Fig. 1 Correlation of effective strain amplitude versus N f for axial and torsional fatigue of Haynes 188 cobalt-base alloy at 760 °C. Note that the torsional data are shifted to the right. Source: Ref 19 . Fig. 2 Correlation of plastic hysteresis energy versus N f for 1% Cr...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
...Abstract Abstract Overload failures refer to the ductile or brittle fracture of a material when stresses exceed the load-bearing capacity of a material. This article reviews some mechanistic aspects of ductile and brittle crack propagation, including a discussion on mixed-mode cracking, which...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001038
EISBN: 978-1-62708-161-0
... of loading ( K l ), and part diameter ( K d ), for fatigue life of steel parts Factor Value for loading in Bending Torsion Tension K l 1.0 0.58 0.9 (a) K d  where d ≤ 10 mm (0.4 in.) 1.0 1.0 1.0  where 10 mm (0.4 in.) < d ≤ 50 mm (2 in.) 0.9 0.9 1.0 K...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
...Abstract Abstract This article aims to identify and illustrate the types of overload failures, which are categorized as failures due to insufficient material strength and underdesign, failures due to stress concentration and material defects, and failures due to material alteration...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... -hp) hand drill may exceed that of the loading in a 15-MW (20,000-hp) marine drive. Factors other than horsepower rating and severity of loading can affect gear strength and durability, particularly duration of loading, operating speed, transient loading, and such environmental factors as lubrication...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002375
EISBN: 978-1-62708-193-1
...Failure modes of gears Table 1 Failure modes of gears Failure mode Type of failure Fatigue Tooth bending, surface contact (pitting or spalling), rolling contact, thermal fatigue Impact Tooth bending, tooth shear, tooth chipping, case crushing, torsional shear Wear Abrasive...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
..., thermal fatigue, tension overload, and combinations of these, as modified by environment. This article briefly reviews the applied aspects of creep-related failures, where the mechanical strength of a material becomes limited by creep rather than by its elastic limit. The majority of information provided...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002362
EISBN: 978-1-62708-193-1
... SA533B-1, 0.025% S) in 288 °C pure water. Environmental enhancement is not uniform but reaches a maximum under intermediate Δ K , R , and frequency conditions. Source: Ref 8 , 9 Fig. 9 Typical fatigue life test specimens. (a) Torsional specimen. (b) Rotating cantilever beam specimen. (c...