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brittle materials

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870201
EISBN: 978-1-62708-344-7
... and even cause total crack arrest. They also present the results of a study on crack initiation, propagation, and fracture in circular (rather than rectangular) specimens and a fatigue study on ductile and quasi-brittle materials. crack arrest crack growth retardation crack mechanics fatigue crack...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630081
EISBN: 978-1-62708-270-9
...Abstract Abstract A brittle fracture occurs at stresses below the material's yield strength (i.e., in the elastic range of the stress-strain diagram). This chapter focuses on brittle fracture in metals and, more specifically, ferrous alloys. It lists the factors that must all be present...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... and what they reveal about the load-carrying characteristics of engineering materials. It then discusses the use of failure criteria and the determination of yielding and fracture limits. It goes on to describe the mechanisms and appearances of brittle and ductile fractures and stress rupture, providing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550511
EISBN: 978-1-62708-307-2
..., ceramics are usually good electrical and thermal insulators. In addition, due to the stability of their strong bonds, they normally have high melting temperatures and excellent chemical stability in many hostile environments. However, ceramics are inherently hard and brittle materials that, when loaded...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... and brittle fracture and explains how they reshaped design philosophies, procedures, and tools. It also discusses the influence of material and manufacturing defects, operating conditions, stress concentration and intensity, temperature and pressure, and cyclic loading, all of which play a role in the onset...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780404
EISBN: 978-1-62708-281-5
... Fig. 1 Change in behavior of a polymeric material with increasing strain rate and/or decreasing temperature. (a) Brittle behavior. (b) Limited ductility behavior. (c) Cold drawing behavior. (d) Rubbery behavior. Curve (a) could represent testing below the glass transition temperature. Source...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780204
EISBN: 978-1-62708-281-5
...Abstract Abstract This article discusses various factors influencing general polymeric behavior, ductile-brittle transitions, crazing, and the brittle fracture of polymeric materials. The discussion covers the effects of environment on glassy thermoplastic, several parametric descriptions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... in electronic solder joints, for example. An example of a thermal fatigue crack in an engine exhaust valve is shown in Fig. 16.13 . Brittle fracture usually occurs abruptly, with little or no warning. It can occur in many different types and classes of materials under the right set of conditions. A major...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540169
EISBN: 978-1-62708-309-6
...Abstract Abstract This chapter discusses various types of material fracture toughness and the methods by which they are determined. It begins with a review of the basic principles of linear elastic fracture mechanics, covering the Griffith-Irwin theory of fracture, the concept of strain energy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030193
EISBN: 978-1-62708-349-2
...-damaged composites. It discusses the causes and effects of various failure mechanisms in composite materials. The failure mechanisms covered are brittle-matrix composite failure, tough-matrix composite failure, thermoplastic-matrix composite failure mechanisms, untoughened thermoset-matrix composite...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490021
EISBN: 978-1-62708-340-9
... 11. Feeley F.J. , Hrtko D. , Kleppe S.R. , and Northrup M.S. , Report on Brittle Fracture Studies , Weld. J. Res. Suppl. , Vol 33 , 1954 , p 99 S 12. Williams M.L. , Analysis of Brittle Behavior in Ship Plate , in Metallic Materials at Low Temperatures , STP...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... showing orientation and elastic distribution of normal (tensile and compressive) and shear stress components in a shaft under pure (a) tension, (b) torsion, and (c) compression loading. Also shown is single-overload fracture behavior of ductile and brittle materials under these loading conditions (bottom...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060239
EISBN: 978-1-62708-355-3
... Parameters and Standards Temperature Control Safety Acknowledgment References References 1. Parker E.R. , Brittle Behavior of Engineering Structures , John Wiley & Sons , 1957 2. Reed R.P. and Clark A.F. , Ed., Materials at Low Temperatures , ASM , 1983...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240221
EISBN: 978-1-62708-251-8
..., the crack stops propagating. At the other extreme, when a brittle crack is initiated, it propagates through the material at velocities approaching the speed of sound, with no possibility of arresting it. There is insufficient plastic deformation to blunt the crack. This makes brittle fractures extremely...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610101
EISBN: 978-1-62708-303-4
... bend specimen, A(B). Source: Ref 12 Fig. 26 Schematic of K -based crack resistance R -curve with definition of K Ic . Source: Ref 12 Fig. 6 Comparison of stress at crack tip for brittle and ductile material. Source: Ref 2 Fig. 7 Plastic zone formation at crack...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630063
EISBN: 978-1-62708-270-9
... is more likely to have brittle behavior. This effect is particularly noticeable at relatively high hardness and strength levels. Pressure (Hydrostatic) A normally brittle material completely immersed in a pressure vessel under extremely high hydrostatic pressure is more likely to have ductile...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270080
EISBN: 978-1-62708-301-0
... showing a crack and the heat-affected zone Welding of 0.5% carbon steel has to be carried out with adequate precautions; otherwise, the quality of the weld will be poor and result in brittle material at the interface. In this case, the fracture initiated from the zone of poor weld quality...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060163
EISBN: 978-1-62708-355-3
... with Flexure Testing of Brittle Materials, ” U.S. Army Materials Technology Laboratory Report MTL TR 87-35 , 1987 . 10. Baratta F.I. , Requirements for Flexure Testing of Brittle Materials , Methods for Assessing the Structural Reliability of Brittle Materials , STP 844, ASTM , 1984 , p 194...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630013
EISBN: 978-1-62708-270-9
... that is regarded as indicating complete failure of the material ( Ref 1 ). Certain metals fail in compression by a shattering type of fracture; these are normally the more brittle materials that do not deform plastically. Gray cast iron, which is relatively weak in tension because of the mass of internal graphite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060115
EISBN: 978-1-62708-355-3
... of elevated temperatures on tensile properties. The ability to strain harden is one of the general characteristics in mechanical behavior that distinguish metals and alloys from most other engineering materials. Not all metallic materials exhibit this characteristic. Chromium, for example, is very brittle...