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Published: 01 July 2009
Fig. 8.12 General shape of damage accumulation curve for continuum damage mechanics. Source: Ref 8.49 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060173
EISBN: 978-1-62708-343-0
..., and thermomechanical fatigue) damage model, and numerous methods that make use of creep-rupture, crack-growth, and void-growth data. It also discusses the use of continuum damage mechanics and includes examples demonstrating the accuracy of each method as well as the procedures involved. crack growth creep...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540379
EISBN: 978-1-62708-309-6
... Abstract This appendix presents an analytical model that estimates damage rates for both crack initiation and propagation mechanisms. The model provides a nonarbitrary definition of fatigue crack initiation length, which serves as an analytical link between initiation and propagation analyses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780216
EISBN: 978-1-62708-281-5
... larger volumes of material as the necked region is forced to grow. As one might expect, this fundamental material behavior also has a significant effect on the puncture resistance of ductile plastics. Using a finite-element approach that incorporates both large-strain continuum mechanics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
.... On the basis of continuum solid mechanics, working solutions of stress/strain and load relationships for some structural elements are derived and presented. In this chapter, the phenomena of deformation and fracture are discussed in more detail for metals and engineering alloys. Many factors influence...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... and stepped-lap bonded joints can be found in Ref 9 to 11 , respectively. In addition, the A4E series of computer programs is available for joints of various geometries. The design and analysis of stepped-lap joints are somewhat more complex and are based on nonlinear continuum mechanics. 17.7 Adhesive...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630257
EISBN: 978-1-62708-270-9
... of S-N and ε- N techniques (crack-initiation fatigue analysis) is satisfactory in situations where a component or structure can be considered a continuum (no cracks present). However, they are not valid if cracklike discontinuities exist. When a cracklike defect is present, a fracture mechanics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040017
EISBN: 978-1-62708-300-3
... 3.1 Introduction The purpose of applying the plasticity theory in metal forming is to investigate the mechanics of plastic deformation in metal forming processes. Such investigation allows the analysis and prediction of (a) metal flow (velocities, strain rates, and strains), (b) temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090191
EISBN: 978-1-62708-266-2
... on the water side, and multiple branching cracks were observed. In contrast, only ductile, transgranular cracking was observed in post-irradiation mechanical tests performed in inert environments and at various temperatures and strain rates. Grain-boundary carbide precipitation was not observed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.tb.hpcspa.t54460067
EISBN: 978-1-62708-285-3
... Methods The majority of modeling techniques used for the analysis of particle impact in cold spraying have been based on continuum mechanics and, in particular, have involved mesh-based methods of numerical simulation. The focus has been on finite-element simulation of particle impact in two...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540001
EISBN: 978-1-62708-309-6
... and loading conditions. elastic properties plastic deformation properties shear and torsion properties solid mechanics stress analysis ENGINEERING MATERIALS can be conveniently grouped into five categories: metals and alloys, intermetallics, ceramics and glasses, polymers (plastics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780249
EISBN: 978-1-62708-281-5
... min /σ max . In the fracture mechanics approach, the stress-intensity factor, which is a measure of the stress singularity at the crack tip, characterizes the stress field associated with a sharp crack in an elastic continuum. Three geometric configurations are used to model the crack. Mode I...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... additional information and references noted at the end of this chapter. The tool box of metallurgists also includes other types of destructive tests to determine mechanical properties (e.g., tensile strength) and various nondestructive techniques to evaluate the structure or condition of metal products...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060137
EISBN: 978-1-62708-355-3
... Abstract The testing of plastics includes a wide variety of chemical, thermal, and mechanical tests. This chapter reviews the tensile testing of plastics, which has been standardized in ASTM D 638, "Standard Test Method for Tensile Properties of Plastics," and other comparable standards...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2004
DOI: 10.31399/asm.tb.ps.t62440049
EISBN: 978-1-62708-352-2
... temperature. Capability of producing joints at temperatures at which the properties of the base materials are not degraded. For example, many work-hardened and precipitation-hardened alloys cannot withstand elevated temperatures without loss of their beneficial mechanical properties. Work hardening...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
..., and others and how it led to the development of a strain-based approach to fatigue and the use of fatigue strength and ductility coefficients. It reviews the three stages of fatigue, beginning with crack initiation followed by crack growth and final fracture. It explains how fracture mechanics can be applied...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490059
EISBN: 978-1-62708-340-9
..., damage mechanisms, and structural integrity of the test sample. In the sections that follow, it discusses the effects of stress and temperature on creep rate, the difference between diffusional and dislocation creep, and the use of time-temperature-stress parameters for data extrapolation. It explains...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870237
EISBN: 978-1-62708-344-7
... Abstract This chapter focuses on the processes and mechanisms involved in fatigue. It begins with a review of some of the early theories of fatigue and the tools subsequently used to obtain a better understanding of the fatigue process. It then explains how plasticity plays a major role...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780157
EISBN: 978-1-62708-268-6
... = 5) taken from a large lot of parts. If the design or manufacturing requirement specifies that 90% of the parts in the lot meet or exceed a certain mechanical property, then the proportion ( p ) of defective parts in the lot would be no more than 10%. In this case, Fig. 16.1 plots the probability...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860237
EISBN: 978-1-62708-348-5
... Abstract The mechanical properties of a material describe the relations between the stresses acting on the material and its resulting deformations. Stresses capable of producing permanent deformations, which remain after the stresses are removed, are considered in this chapter. The effects...