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mechanistic models

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003642
EISBN: 978-1-62708-182-5
... of mathematics. This article discusses the principles and applications of various models developed for understanding the corrosion mechanism. These models include mechanistic models, including Pourbaix model, thermophysical module, electrochemical module, and ion association model; risk-based models...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005537
EISBN: 978-1-62708-197-9
... for obtaining machining-induced residual stresses, including detailed finite-element analysis of the cutting process, the simple fast-acting mechanistic model, and the semi-empirical linear stress model. The article concludes with information on the modeling benefits and implementation of modeling...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005425
EISBN: 978-1-62708-196-2
... models, which can be grouped broadly into three classes: statistical, phenomenological, and mechanistic models. The article also presents an overview of the potential directions for the modeling of metals processing. material behavior model statistical model phenomenological model mechanistic...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005438
EISBN: 978-1-62708-196-2
...Abstract Abstract This article provides guidelines for the assessment of model quality in materials science and engineering. It discusses the fundamentals of model quality assessment and the calibration of mechanistic material models. The article reviews the considerations for the model...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002482
EISBN: 978-1-62708-194-8
..., mechanistic, or deterministic models along with their important considerations. It describes the various aspects of modeling of deformation processes, casting operations, and fusion welding processes, with examples. casting deformation deterministic models empirical models fusion welding...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003382
EISBN: 978-1-62708-195-5
... such as mechanistic or phenomenological, for composite materials under cyclic loading. composite structures damage tolerance delamination material degradation compression loading fatigue life bearing failure fatigue damage life prediction model quasi-isotropic laminate tension-compression fatigue...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003633
EISBN: 978-1-62708-182-5
... parameters of SCC. It describes the phenomenological and mechanistic aspects of the initiation and propagation of SCC. The article includes a phenomenological description of crack initiation and propagation that describes well-established experimental evidence and observations of stress corrosion...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003632
EISBN: 978-1-62708-182-5
... of the environmentally induced fractures that were previously termed liquid-metal embrittlement are now considered solid metal induced embrittlement. Because satisfactory mechanistic models have not been developed for any of these forms of environmental cracking, the prediction of environmentally assisted cracking...
Book Chapter

Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005816
EISBN: 978-1-62708-165-8
... velocity and subcooling and to decrease with the distnace from the stagnation point. Modeling of Jet Cooling Modeling of jet cooling includes global and mechanistic forms. Global Modeling Most of the work cited in the previous two sections involved the development of an empirical correlation...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005544
EISBN: 978-1-62708-197-9
... in its precipitation models to allow realistic and mechanistic modeling on nucleation, growth, and coarsening. QuesTek http://www.questek.com Micromechanical and mesoscale property models (solid mechanics and finite-element analysis) Table 6 Micromechanical and mesoscale property models...
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
... representation of possible fracture mechanisms is the fracture mechanism (Ashby) map ( Fig. 13 ). Such a map shows the area of dominance in terms of normalized stress versus normalized temperature for the dominant fracture mechanisms. The maps are constructed chiefly by using the best mechanistic models of each...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001472
EISBN: 978-1-62708-173-3
... to cause metal-to-metal contact at asperities, followed by the removal of interfacial voids and cracks by diffusional and creep processes. For conventional diffusion bonding without a diffusion aid, the three-stage mechanistic model shown in Fig. 14 describes bond formation. In the first stage...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002476
EISBN: 978-1-62708-194-8
... to conditions different from the original test conditions. Other models that are rooted in the principles of fracture mechanics are discussed in the next section. Batdorf's Theory—Mechanistic Model The concepts proposed by Batdorf ( Ref 21 ), and later refined by Batdorf and Crose ( Ref 22...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009005
EISBN: 978-1-62708-185-6
... predicted by such comparisons. Source: Ref 35 Mechanistic Modeling of Cavitation. Unlike the well-developed phenomenological approaches for ductile fracture, such as that based on the Cockcroft and Latham criterion ( Ref 36 ), the development of physics-based (mechanistic) models for the prediction...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003640
EISBN: 978-1-62708-182-5
... scientific principles with an appreciation of the mechanisms of degradation of the material being studied. Experimental design is an accepted methodology that can help to make the transition between simple but practical empirical models to the most sophisticated multiparameter mechanistic models...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003638
EISBN: 978-1-62708-182-5
... This subsection contains vital information for the corrosionist. Properly designed and planned experiments can reduce the number of experiments and produce data that are subjected to statistical analysis. Statistically significant data can then be used to develop mechanistic- and knowledge-based models...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003379
EISBN: 978-1-62708-195-5
..., or one must use a more comprehensive theory that properly represents matrix failures if there is no simple design solution available. It should be noted that these particular empirical failure models are 100% mechanistic, so their capabilities and limitations are easily established. What must be avoided...
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
... are constructed chiefly by using the best mechanistic models of each fracture process. For more on high-temperature fracture mechanisms, see Ref 15 . Fig. 10 Fracture mechanism map for nickel Failure in deformation processing at below 0.5 T m occurs by ductile fracture. The three stages...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003568
EISBN: 978-1-62708-180-1
... of time often follows a pattern consisting of an incubation period with little or no material removal, followed by an increasing rate, and finally a steady state. Some materials exhibit peaks with decelerating rate with or without a final steady state ( Fig. 2 , Ref. 49 ). Most mechanistic models...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009002
EISBN: 978-1-62708-185-6
... (Eq 16b) D s ≅ d p ( 6 / f v ) 1 3 Mechanistic Models for Microstructure Evolution A number of mechanism-based approaches have been developed to model microstructure evolution during hot working and annealing. These models incorporate deterministic...