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micromechanism

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Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003377
EISBN: 978-1-62708-195-5
... swelling coefficients static viscoelastic properties dynamic viscoelastic properties conductivity moisture diffusivity micromechanics WITH INCREASING USE of high-strength and high-stiffness fibers in materials designed to yield a desired set of properties, new interest has arisen...
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
...Abstract Abstract This article provides a brief description of the different types of micromechanisms of monotonic and cyclic fracture. General information on the material variables that have the most beneficial effect on resistance to failure is presented. The article discusses the various...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003399
EISBN: 978-1-62708-195-5
...Abstract Abstract The goal of micromechanics and analysis is to use the predictive methodology to develop tailored composites and also to make accurate predictions of their performance in service. This article reviews results derived from micromechanics analyses, based on finite-element method...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003389
EISBN: 978-1-62708-195-5
... structures based on micromechanics and macromechanics. The article describes the FEA of 3-D solid elements, 2-D cylindrical shell elements, and 1-D beam elements. It contains a table that lists the commercially available finite element codes related to the analysis of fibrous composite materials. The article...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
...Abstract Abstract Mechanical testing is an evaluative tool used by the failure analyst to collect data regarding the macro- and micromechanical properties of the materials being examined. This article provides information on a few important considerations regarding mechanical testing...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005418
EISBN: 978-1-62708-196-2
...Abstract Abstract Self-consistent models are a particular class of models in continuum micromechanics, that is, the field concerned with making predictions of the properties and evolution of aggregates whose single-crystal deformation behavior is known. This article provides information...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005502
EISBN: 978-1-62708-197-9
...Abstract Abstract This article presents the governing equations and methodologies to model the press and sinter powder metallurgy, including continuum, micromechanical, multiparticle, and molecular dynamics approaches. It describes the constitutive relation for compaction and sintering...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003376
EISBN: 978-1-62708-195-5
... addresses composites at two levels: micromechanics and macromechanics. The article “Micromechanics” provides an understanding of the behavior of the fiber and resin constituents and how their combination affects higher level composite behavior. Micromechanics played a significant role in the formative...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003390
EISBN: 978-1-62708-195-5
... stiffness calculations and point-stress analysis to micromechanical modeling to shell buckling and other structural considerations. The problem now becomes one of finding a program that meets the user's needs. Evaluation Criteria Criteria for evaluating computer programs for composites structural...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005405
EISBN: 978-1-62708-196-2
... clear relevance and is emphasized in this article. Stages of the Fatigue Damage Process The advent of microstructure-sensitive micromechanics modeling of cyclic plastic deformation and fatigue processes in the last decade that employ emerging tools in computational materials science and mechanics...
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
... for by standard micromechanical analyses. This German technique is actually a major breakthrough, relying only on identifying the most suitable material for the carrier tube, to ensure that it does not fail first. It can obviously be extended to all biaxial states of strain, permitting systematic verifications...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006397
EISBN: 978-1-62708-192-4
.... The article reviews the microscopic mechanisms generating friction. It concludes by discussing the three components of rolling friction: microslip at the interface, anelastic hyteresis losses, and surface roughness. anelastic hyteresis loss micromechanism microslip rolling friction solid friction...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003383
EISBN: 978-1-62708-195-5
... of the matrix shear modulus, the fiber shear modulus, and the volume fraction of fibers. None of the existing micromechanics theories accurately fits the experimental data ( Ref 2 ), but the numerical prediction of D.F. Adams and D.R. Doner ( Ref 3 ) gives good agreement. From the type of curve shown in Fig. 2...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005421
EISBN: 978-1-62708-196-2
... and a surface effective strain rate of 0.04 s −1 . Source: Ref 41 Micromechanical Models of Plasticity-Controlled Growth Classical plasticity-controlled models, such as those discussed previously, neglect the effect of local texture and microstructure on cavity growth. As such, their principal use...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001348
EISBN: 978-1-62708-173-3
... is that there is no simple connection between condensed matter theory, micromechanics, and continuum mechanics. The following discussion briefly reviews some of the available technical literature that describes the use of these spectroscopies and their application to bimaterial systems. Photoelectron spectroscopy has...
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
... concentration ( Ref 15 ). Fiber pullout and the associated R -curve are again obtained during fracture. Constitutive Laws for Inelastic Straining The micromechanics of matrix cracking, interface debonding and sliding, and their roles in the macroscopic stress–strain response are very well understood...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003227
EISBN: 978-1-62708-199-3
...-surface topography with macroscopic fracture-surface features is essential. The crack-initiation region and the directions of crack growth must be identified accurately so that information concerning the sequence of events and the micromechanisms of fracture, as observed by electron microscopy, can...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003318
EISBN: 978-1-62708-176-4
... with a thermal couple or an infrared sensor. In many polymer systems, the thermal work influenced by high damping and low thermal conductivity contributes to micromechanisms of permanent deformation including craze formation, shear bands, voids, or even microcracks ( Ref 8 ). Fig. 4 Plot showing...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006331
EISBN: 978-1-62708-179-5
... to Improve Casting Quality , Int. J. Cast Met. Res. , Vol 25 ( No. 3 ), June 2012 , p 176 – 187 10.1179/1743133611Y.0000000038 14. Bonora N. and Ruggiero A. , Micromechanical Modeling of Ductile Cast Iron Incorporating Damage, Part I: Ferritic Ductile Cast Iron , Int. J. Solids...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002413
EISBN: 978-1-62708-193-1
... thermomechanical behavior to predict solder joint lifetime. It will be shown (based on the experimental data, metallurgical observations, and the micromechanically based theory of the solder behavior) that the thermomechanical fatigue tests that are used to verify the quality of solder joints can be replaced...