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crack-tip stress field

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003400
EISBN: 978-1-62708-195-5
... the constitutive laws needed to describe crack-tip inelasticity. It demonstrates the effects of inelasticity on crack-tip stress fields and addresses the environmental degradation effects on damage tolerance. continuous fiber-reinforced ceramic composites mechanical loading inelastic deformation crack-tip...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005411
EISBN: 978-1-62708-196-2
..., oxidation kinetics, evolution of crack-tip stress fields due to creep, oxygen ingress, and change in the microstructure. It also provides a summary of creep-fatigue modeling approaches. creep oxidation kinetics oxygen ingress microstructure creep-fatigue modeling crack-tip stress field...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003320
EISBN: 978-1-62708-176-4
... the criterion for fatigue limit under combined stress. This article begins with a description of the stress states of combined stress and stress fields near crack tips. It provides an account of the various biaxial and multiaxial fatigue testing methods, specimen geometries, and stress intensity factors...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002389
EISBN: 978-1-62708-193-1
.... As demonstrated in previous discussion, C t and C ∗ are identical in the extensive creep regime. However, C t is also valid in the small-scale and transition regimes where C ∗ is no longer path-independent and therefore does not uniquely characterize the crack-tip stress fields. Because C t is more...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
... complex geometry factors for complex loading, various configurations of real structural components, or variations in crack shapes. This allows using linear elastic analysis of small-scale yielding to define a unique factor, K , that is proportional to the local crack-tip stress field outside the small...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003305
EISBN: 978-1-62708-176-4
... the stress-field magnitude and distribution in the vicinity of a crack tip to the nominal stress applied to the structure: to the size, shape, and orientation of the crack or cracklike imperfection; and to the material properties. A crack in a loaded part or specimen generates its own stress field ahead...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002378
EISBN: 978-1-62708-193-1
... Griffith Theory: An Analytic Approach to Brittle Fracture General Fracture Control Concepts Linear Elastic Fracture Mechanics Fatigue Fracture Environmental Effects Summary Crack Tip Stresses: The Field Equations Fracture Mechanics Based Fracture Criterion Fracture Mechanics...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
..., or the relation can involve complex geometry factors for complex loading, various configurations of real structural components, or variations in crack shapes. This allows using linear elastic analysis of small-scale yielding to define a unique factor, K , that is proportional to the local crack-tip stress field...
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
... . 28. Chandwani R. and Timbrell C. , “Simulation of 3-D Non-Planar Crack Propagation,” NAFEMS World Congress 2007 , May 22–25, 2007 ( Vancouver, Canada ). This chapter focuses on linear elastic fracture mechanics where the stress field at the crack tip can be described...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002385
EISBN: 978-1-62708-193-1
... of growth in one cycle depends on the crack tip stress field, which is described by K. During a load cycle, K varies from a minimum K min = σ min β π a to a maximum K max = σ max β π a , over a range Δ K = Δσβ π a , where σ min is the minimum stress...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003307
EISBN: 978-1-62708-176-4
... Society for Testing and Materials , 1998 24. Riedel H. , Creep Deformation at Crack Tips in Elastic-Viscoelastic Solids , J. Mech. Phys. Solids , Vol 29 , 1981 , p 35 10.1016/0022-5096(81)90014-4 25. Ohji K. , Ogura K. , and Kubo S. , Stress-Strain Field...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006457
EISBN: 978-1-62708-210-5
... or exceed yield values, the elastic stress field surrounding the crack departs from that of plane strain as a result of the development of an enlarged crack-tip plastic zone, which generally enhances fracture toughness. With increasing load, slow, stable crack extension (tearing) may accompany...
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
... introduces the stress analysis of bodies containing cracklike imperfections and the topic of fracture mechanics. The fracture mechanics approach is based on the analysis of the crack tip stress and strain field. The initial approach proposed by George Irwin, the father of fracture mechanics, used the stress...
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
... mechanics. The fracture-mechanics approach is based on the analysis of the crack tip stress and strain field. The initial approach proposed by George Irwin, the father of fracture mechanics, used the stress-intensity factor, K , to describe the magnitude of a field with a unique stress distribution...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
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
... research programs that were conducted in the U.S. in this time period on MSD, and they reference fourteen papers. The research consisted of analytical studies encompassing the loss of residual strength as a result of MSD, the study of crack opening displacement (COD) and the critical crack tip opening...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
.... 13 ). It is important to note that PP is a semicrystalline polymer that usually deforms by yielding and recrystallizing under monotonic loading. The transformation at the crack tip may appear as a yielded zone, as in thin PC sheet material ( Fig. 14 ). A pair of shear bands are also reported...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002386
EISBN: 978-1-62708-193-1
... from the value of K , the stress field will be the same. Equation 10 is the general solution for all crack problems. The parameter K governs the field, and K is the only significant parameter for all crack problems. Once K is known, the near-crack-tip stress field is known in its entirety...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002421
EISBN: 978-1-62708-193-1
... and strains, which are more commonly used in engineering. The stress-intensity concept is based on the parameter K, which quantifies the stresses at a crack tip. Using the conventional theory of elasticity, it is possible to calculate the stress field at the tip of a crack in an arbitrary body...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002352
EISBN: 978-1-62708-193-1
.... Stresses and strains are high at the crack tip, and the high strains in the x - and y -directions at a crack tip induce a contraction in the z -direction. If the contraction (plastic) zone is long and thin, contraction is prevented by the surrounding material, which thus constrains the contraction...