Skip Nav Destination
Close Modal
By
Daniel J. Benac, V.P. Swaminathan, Ph.D.
By
Doru M. Stefanescu, Roxana Ruxanda
By
M.R. Mitchell
By
J.S. Robinson
Search Results for
instability
Update search
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
NARROW
Format
Topics
Book Series
Date
Availability
1-20 of 513
Search Results for instability
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Sort by
Book: Composites
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003385
EISBN: 978-1-62708-195-5
... stiffness effects. The article presents the study of instability associated with postbuckling behavior and hygrothermal buckling in composite sandwich panels and shell panels. composites orthotropic plates anisotropic plates unsymmetric plates transverse shear stiffness postbuckling hygrothermal...
Abstract
This article focuses on the unique characteristics of composites and laminated plates, including orthotropic, anisotropic, and unsymmetric plates. It discusses the stability issues associated with practical, structural laminates based on the finite stack effects and transverse shear stiffness effects. The article presents the study of instability associated with postbuckling behavior and hygrothermal buckling in composite sandwich panels and shell panels.
Image
Image of a solid-liquid interface at the beginning of instability. For clar...
Available to PurchasePublished: 01 December 2008
Fig. 5 Image of a solid-liquid interface at the beginning of instability. For clarity, the interface of succinonitrile in a directional solidification experiment is inclined to the optical axis of the microscope. Grain boundaries and subgrain boundaries can be seen. The mean wavelength
More
Image
Correlation among the different types of instability observed in graphite g...
Available to PurchasePublished: 01 December 2008
Fig. 24 Correlation among the different types of instability observed in graphite growth and growth morphologies with increasing undercooling, Δ T . (a) Δ T = 4 °C (7 °F). (b) Δ T = 9 °C (16 °F). (c) Δ T = 30 °C (54 °F). (d) Δ T = 40 °C (72 °F). Source: Ref 6
More
Image
Published: 01 January 1996
Fig. 20 R value effects on threshold and fracture instability behavior of 300M steel. Source: Ref 49
More
Image
Types of instability of a planar solid-liquid eutectic interface. (a) Singl...
Available to PurchasePublished: 27 April 2016
Fig. 21 Types of instability of a planar solid-liquid eutectic interface. (a) Single-phase instability leading to the appearance of dendrites of one phase. (b) Two-phase instability leading to the appearance of eutectic cells or colonies in the presence of a third alloying element. Source
More
Image
Considére's construction showing point of instability in tension testing (d...
Available to PurchasePublished: 01 January 2005
Fig. 9 Considére's construction showing point of instability in tension testing (due to decreasing strain-hardening rate) and in compression testing (due to strain softening)
More
Image
Schematic showing keyhole instability. (a) Keyhole is formed by heat genera...
Available to PurchasePublished: 31 October 2011
Fig. 10 Schematic showing keyhole instability. (a) Keyhole is formed by heat generated by electron beam. (b) Maximum penetration that can be produced by heat flow. (c) Liquid cools, causing impending collapse of displaced metal. The keyhole is filled by a lump of cooling material at the end
More
Image
Considére construction showing instability conditions in tension testing (d...
Available to PurchasePublished: 01 January 2000
Fig. 9 Considére construction showing instability conditions in tension testing (due to decreasing work-hardening rate) and in compression testing (due to work softening)
More
Image
Schematic of keyhole instability in laser beam welding. (a) Full developmen...
Available to PurchasePublished: 30 November 2018
Fig. 1 Schematic of keyhole instability in laser beam welding. (a) Full development of keyhole and balance of forces. (b) Initial perturbation of keyhole through instability at rear molten wall. (c) Collapse of keyhole, entrapping metallic vapor within the root. (d) Reestablishment of full
More
Image
Schematic showing keyhole instability. (a) Keyhole is formed by heat genera...
Available to PurchasePublished: 01 January 1993
Fig. 10 Schematic showing keyhole instability. (a) Keyhole is formed by heat generated by electron beam. (b) Maximum penetration that can be produced by heat flow. (c) Liquid cools, causing impending collapse of displaced metal. The keyhole is filled by a lump of cooling material at the end
More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005209
EISBN: 978-1-62708-187-0
... build-up at the solid-liquid interface forming transients and steady state, the morphological stability/instability and perturbation theory, and rapid solidification effects, including solute trapping and oscillatory instabilities. The article presents a microstructural selection map that presents...
Abstract
One impressive example of plane front solidification (PFS) is the industrial production of large silicon single crystals, used mainly as substrates for integrated circuits. This article explores the PFS of a single phase, without taking convection into account. It discusses the solute build-up at the solid-liquid interface forming transients and steady state, the morphological stability/instability and perturbation theory, and rapid solidification effects, including solute trapping and oscillatory instabilities. The article presents a microstructural selection map that presents an overview of interface stability as a function of composition for a given alloy.
Book Chapter
Elevated-Temperature Life Assessment for Turbine Components, Piping, and Tubing
Available to PurchaseSeries: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... Abstract This article focuses on the life assessment methods for elevated-temperature failure mechanisms and metallurgical instabilities that reduce life or cause loss of function or operating time of high-temperature components, namely, gas turbine blade, and power plant piping and tubing...
Abstract
This article focuses on the life assessment methods for elevated-temperature failure mechanisms and metallurgical instabilities that reduce life or cause loss of function or operating time of high-temperature components, namely, gas turbine blade, and power plant piping and tubing. The article discusses metallurgical instabilities of steel-based alloys and nickel-base superalloys. It provides information on several life assessment methods, namely, the life fraction rule, parameter-based assessments, the thermal-mechanical fatigue, coating evaluations, hardness testing, microstructural evaluations, the creep cavitation damage assessment, the oxide-scale-based life prediction, and high-temperature crack growth methods.
Book Chapter
Fundamentals of Solidification
Available to PurchaseSeries: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003724
EISBN: 978-1-62708-177-1
... occurs. The article details five types of solidification undercooling, namely, kinetic, thermal, constitutional (solutal), curvature, and pressure undercooling. It explains the types of nucleation which occur in the melt during solidification. The effects of local instabilities at the solid/liquid...
Abstract
This article provides information on four different length scales at which surface morphology can be viewed: macro, meso, micro and nanoscale. Elementary thermodynamics demonstrates that a liquid cannot solidify unless some undercooling below the equilibrium (melting) temperature occurs. The article details five types of solidification undercooling, namely, kinetic, thermal, constitutional (solutal), curvature, and pressure undercooling. It explains the types of nucleation which occur in the melt during solidification. The effects of local instabilities at the solid/liquid interface during growth are illustrated. The article also describes the solidification structures of pure metals, solid solutions, eutectics, peritectics, and monotectics.
Book: Fatigue and Fracture
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002348
EISBN: 978-1-62708-193-1
..., crack propagation, and final instability. The article discusses the significant role that fatigue plays in industrial design applications. crack propagation fatigue nucleation structurally dependent crack propagation THE DISCOVERY of fatigue occurred in the 1800s when several investigators...
Abstract
This article provides ASTM standard definitions for fatigue and describes the approaches that are used to design finite or infinite life, used in a complementary sense in fatigue design. It explains four distinct phases of fatigue: nucleation, structurally dependent crack propagation, crack propagation, and final instability. The article discusses the significant role that fatigue plays in industrial design applications.
Book Chapter
Fundamentals of Modern Fatigue Analysis for Design
Available to PurchaseBook: Fatigue and Fracture
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002364
EISBN: 978-1-62708-193-1
... instabilities caused by cyclic deformations. It discusses the effect of mean stress on fatigue life and presents the analysis of cumulative fatigue damage. The article concludes with examples of application techniques for fatigue life prediction. cyclic deformation cyclic stress-strain curve fatigue...
Abstract
Fatigue crack initiation is an important aspect of materials performance in design. This article summarizes some fundamental concepts and procedures for the fatigue life prediction of relatively homogeneous, wrought metals when a major portion of total life is exhausted in crack initiation. It presents an overview of the strain-based, as opposed to stress-based, criterion of material behavior and fatigue analysis. The article describes the cyclic stress-strain behavior of metals to illustrate the inadequacy of the monotonic or tensile stress-strain curve in accounting for material instabilities caused by cyclic deformations. It discusses the effect of mean stress on fatigue life and presents the analysis of cumulative fatigue damage. The article concludes with examples of application techniques for fatigue life prediction.
Book Chapter
Residual Stress in Heat Treatable Aluminum Alloys
Available to PurchaseSeries: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006252
EISBN: 978-1-62708-169-6
... Abstract The presence of macroscopic residual stresses in heat treatable aluminum alloys can give rise to machining distortion, dimensional instability, and increased susceptibility to in-service fatigue and stress-corrosion cracking. This article details the residual-stress magnitudes...
Abstract
The presence of macroscopic residual stresses in heat treatable aluminum alloys can give rise to machining distortion, dimensional instability, and increased susceptibility to in-service fatigue and stress-corrosion cracking. This article details the residual-stress magnitudes and distributions introduced into aluminum alloys by thermal operations associated with heat treatment. The available technologies by which residual stresses in aluminum alloys can be relieved are also described. The article shows why thermal stress relief is not a feasible stress-reduction technology for precipitation-hardened alloys. It examines the consequences of aging treatments on the residual stress, namely, annealing, precipitation heat treatment, and cryogenic treatment. The article provides information on uphill quenching, which attempts to reverse thermal gradients encountered during quenching. It examines how quench-induced residual stresses in heat treatable aluminum alloys are reduced when sufficient load is applied to cause plastic deformation. The article also shows how plastic deformation reduces residual stress.
1