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stress intensity factor

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Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003815
EISBN: 978-1-62708-183-2
...-corrosion, atmospheric corrosion, filiform corrosion, and corrosion in water and soils. It discusses the effects of composition, microstructure, stress-intensity factor, and nonmetallic building materials on the corrosion behavior of aluminum and its alloys. The article also describes the corrosion...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... stainless steels in boiling magnesium chloride. Source: Ref 11 The linear elastic fracture mechanics approach to the study of SCC is focused on the growth of stress-corrosion cracks in specimens that contain a small preexisting crack. It uses the stress-intensity factor at the crack tip, K I...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005654
EISBN: 978-1-62708-198-6
... can also have an effect on crack propagation when a fracture mechanics approach is used. For example, fatigue crack growth rates in austenitic stainless steels increase as R increases ( Ref 31 ). To account for this effect, an effective stress-intensity factor K eff is used in the Paris equation...
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
... on the crack tip stress field. In these cases, the creep crack growth rate ( da / dt ) follows the conventional fatigue crack growth rate and can be correlated with K , the stress-intensity factor, with a power-law dependence as: d a / d t = α K n where α and n are the curve...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003088
EISBN: 978-1-62708-199-3
... or more output parameters, where those output parameters may include a prediction of factors such as operating stress, strain, deflection, deformation, wear rate, fatigue strength, creep strength, or service life. In reality, virtually all material properties and design parameters exhibit some...
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
... the stress-intensity factor, K , to describe the magnitude of a field with a unique stress distribution and to relate the boundary loading to the crack tip stresses. Irwin showed that as long as the region defined by the K field was small relative to the dimensions of a component, the stress field...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006451
EISBN: 978-1-62708-190-0
... additional setup steps usually are involved to enable image capture during cyclical loading. With respect to fracture mechanics research, one area in which thermoelasticity has been applied with great success is in determining stress intensity factors. For fracture mechanics type research, high stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
...-stress contributions to the stress-intensity factor can be calculated and used to predict whether crack growth and/or arrest will occur. It should be noted that the effect of residual stresses on crack-growth rates tends to diminish with increasing fracture toughness. Residual stresses can also be taken...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006632
EISBN: 978-1-62708-213-6
... intensity and free of interference from neighboring peaks can be produced in the high-back-reflection region with the radiations available. X-ray diffraction residual-stress measurement is unique in that macroscopic and microscopic residual stresses can be determined nondestructively, but only in a very...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001298
EISBN: 978-1-62708-170-2
.... Equation 4 provides a much better approximation than Eq 3 , but it does require knowledge of elastic properties. Equation 4 differs from Eq 3 in terms of a correction factor [(1 + ΓΘ 3 )/(1 + Θ)]. Table 1 compares stresses as a function of d s / d c , calculated from both Eq 3 and 4 . In the...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005947
EISBN: 978-1-62708-166-5
... for heat treatment is as follows: Transformation plasticity is an important distortion-relevant factor during each heating and cooling process if stresses are present. Yielding is most important during quenching. During heating, it can be relevant if the component contains huge residual...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
... size, shape, and orientation of the crack or cracklike imperfection; and to the material properties. The stress-field equations show that the magnitude of the elastic stress field can be described by a single parameter, K , which is designated the “stress-intensity factor.” The stress-intensity...
Book Chapter

By Ted Kostilnik
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001235
EISBN: 978-1-62708-170-2
... of compressed layer to be produced by peening is a factor in selecting peening intensity. For instance, a heavy steel component with a partially decarburized skin requires a peening intensity high enough to induce a compressive stress beneath the decarburized layer. The relation between peening...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006662
EISBN: 978-1-62708-213-6
... number of compounds in the available databases is only a small fraction of the total number of known compounds. Infrared spectra databases can be searched in several ways. The important factors are peak locations, band intensities, and band shapes. Because a typical infrared spectrum contains...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009003
EISBN: 978-1-62708-185-6
... Abstract This article provides the definitions of stress and strain, and describes the relationship between stress and strain by stress-strain curves and true-stress/true-strain curves. The emphasis is on understanding the factors that determine the extent of deformation a metal can withstand...
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: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... wedge-opening fracture sample, which aided formation of methane bubbles on the grains of 2.25Cr-1.0Mo steel exposed to high-pressure (21 MPa, or 3 ksi) hydrogen at 475 °C (887 °F). This is below the temperature where hydrogen attack would occur in service without an applied stress-intensity-factor crack...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003820
EISBN: 978-1-62708-183-2
... Abstract This article begins with a discussion on the environmental factors that induce corrosion in magnesium alloys. It reviews the factors that determine the severity of different forms of localized corrosion, namely, galvanic corrosion, corrosion fatigue, and stress-corrosion. The article...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... Abstract This article focuses on the factors that determine the extent of deformation a metal can withstand before cracking or fracture occurs. It informs that workability depends on the local conditions of stress, strain, strain rate, and temperature in combination with material factors. The...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006442
EISBN: 978-1-62708-190-0
... ) and correlates with magnetic flux leakage ( Ref 45 ); therefore, it has the potential to facilitate the interpretation of these signals. Current portable inspection methods for stress measurement, such as x-ray diffraction, can be costly, time-intensive, and require surface preparation, including...