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stress spectrum

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... employs the stress-life method of fatigue life assessment. The article examines the behavior of three different metallic materials used in the design and manufacture of structural components: steel, aluminum, and titanium. It also reviews the effects of retardation and spectrum load on component life...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006505
EISBN: 978-1-62708-207-5
... properties of aluminum are discussed in terms of tensile properties, stress-strain relationships, and creep. The article also reviews the physical properties of aluminum, such as atomic structure and nuclear properties, atomic spectrum, crystal structure, density, thermal expansion, and thermal conductivity...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002392
EISBN: 978-1-62708-193-1
... by converting the load factor spectrum into a stress spectrum for each location and incorporating the effects of the service environment. Using crack growth equations, such as the Forman equation, the stress spectrum is combined with material properties data and stress intensity factor solutions applicable...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.9781627081931
EISBN: 978-1-62708-193-1
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003445
EISBN: 978-1-62708-195-5
... of the structure. In general, full-scale cyclic testing has been limited to two to four lifetimes of spectrum loading, including a spectrum load enhancement factor. The flat stress versus cycles curve for composite materials would require, from a statistically significant point of view, consideration...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002356
EISBN: 978-1-62708-193-1
... a positive mean stress. That is one of the reasons why they can become fatigue-critical. The probability of introducing residual stresses by the VA load history depends on the shape of the load spectrum. However, in general, favorable residual stresses are more likely if the load spectrum is associated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
..., including catastrophic mechanisms, such as brittle fracture, ductile overload, creep rupture, environmental stress cracking, molecular degradation, and fatigue. In the case of failure involving fracture, the determination of the failure mode involves identifying how the crack initiated and how...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005419
EISBN: 978-1-62708-196-2
... , pp. 314 – 316 . 14. Wheeler O.E. , Spectrum Loading and Crack Growth , Trans. ASME, J. Basic Eng. , 1972 , pp. 181 – 186 . 10.1115/1.3425362 15. Willenborg J. , Engle R.M. , and Wood H.A. , “A Crack Growth Model Using an Effective Stress Concept,” Report AFFDL...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003382
EISBN: 978-1-62708-195-5
... Laminate S - N curves at several R -ratios and spectrum loading Fig. 8 Residual strength, R(n ), relation for constant amplitude loading. R 0 is the original static tensile or compressive strength; S p is the peak stress magnitude; v is a strength degradation parameter. Fig...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... Abstract The article commences with an overview of short-term and long-term mechanical properties of polymeric materials. It discusses plasticization, solvation, and swelling in rubber products. The article further describes environmental stress cracking and degradation of polymers...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002394
EISBN: 978-1-62708-193-1
... desired, and how to obtain this distribution must be determined as the result of the stress analysis. A similar type of analysis needs to be conducted for the durability and damage tolerance test article. In this instance, there is a description of the loading spectrum, where to inspect for flaws during...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0009217
EISBN: 978-1-62708-176-4
... Abstract Fatigue crack growth rate testing and data analysis are performed to characterize the crack propagation resistance of material environment combinations in order to predict crack growth life under anticipated stress histories. This article presents analyses performed on the numerical...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003386
EISBN: 978-1-62708-195-5
.... For a constant-amplitude loading condition of R = 10 (that is, compression-compression) the 10 6 cycle endurance condition typically corresponds to a maximum cyclic stress (in compression) of 60 to 65% of the undamaged static ultimate ( Fig. 7 ). The fatigue curve is much higher for spectrum-type loading...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002390
EISBN: 978-1-62708-193-1
... ) Stress relaxation due to creep ( E , A , n , t ) Environmental diffusion coefficients ( Q , R , t ) Spectrum life Single mode for load interaction Multiple modes for load/temperature/time interactions Fig. 2 Schematic of temperature effect on fatigue crack threshold and growth...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002393
EISBN: 978-1-62708-193-1
... defines the stress range truncation level. Taking the first stress range of 3.56 ksi (24.5 MPa) as an example, all cycles with a stress range less than 3.56 ksi were eliminated from the spectrum. In the second case, all cycles with a stress range less than 5.18 ksi (35.7 MPa) were eliminated, and so...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001821
EISBN: 978-1-62708-180-1
... response to the passage of a truck also indicated that more than one stress cycle occurred. The variable stress spectrum appeared to correspond to about 1.8 events per truck. This corresponded to 62.8 × 10 6 cycles if it were applied to each vehicle passage. During 1981, cores were removed from...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006073
EISBN: 978-1-62708-172-6
... Abstract This article discusses the environmental influences on protective coating films that can result in deterioration. These environmental factors can be classified into four groups: (1) energy: solar, heat; (2) permeation: moisture, solvent, chemical, and gas; (3) stress: drying and curing...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003714
EISBN: 978-1-62708-182-5
... of standards Web address ACI International Concrete, including corrosion www.concrete.org/ American Association of State and Highway Transportation Officials (AASHTO) Transportation, including corrosion www.transportation.org/ ANSI (American National Standards Institute) Broad spectrum...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.9781627081788
EISBN: 978-1-62708-178-8
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006063
EISBN: 978-1-62708-172-6
... often. However, the integrity of the underlying layers of the coating system should be assessed because eventually the excessive stress of multiple overcoats will result in adhesion issues. Fig. 4 Multiple coats of coating shown through microscopic examination (main image) and coating thickness...