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failure prediction method

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004021
EISBN: 978-1-62708-185-6
... mechanical properties. Crystal-plasticity modeling has made excellent progress in predicting texture ( Ref 42 ). As the computing environment continues to improve, the crystal-plasticity method coupled with the FEM code (CPFEM) to describe the texture/anisotropy evolution during the forming process will...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005431
EISBN: 978-1-62708-196-2
... Abstract Several methods are developed for the numerical solution of partial differential equations, namely, meshed-solution methods such as the finite-element method (FEM), finite-difference method, and boundary-element method; and numerical algorithms consisting of so-called meshed-solution...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003224
EISBN: 978-1-62708-199-3
... toughness as “a generic term for measures of resistance to crack extension.” The concepts of fracture mechanics are concerned with the basic methods to predict the load-carrying capabilities of structures and components containing cracks. Virtually all design and standard specifications require the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003024
EISBN: 978-1-62708-200-6
... Abstract This article discusses the deformation and viscoelastic characteristics of plastics as polymeric materials, focusing on the test methods used for the evaluation of their mechanical properties, methods available for analytically predicting the deformation response of polymers, and the...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005455
EISBN: 978-1-62708-196-2
... contributions from the various strengthening mechanisms, as well as development of finite-element method/crystal-plasticity models. Additionally, rules-based approaches have been employed to yield quantitative predictions of tensile properties as a function of both heat treatment ( Ref 73 , Ref 74 , Ref 75...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004028
EISBN: 978-1-62708-185-6
... complex forming operations, through the use of the finite element method, are also presented. axial deformation body centered-cubic sheets deformation texture finite element method forming plastic deformation rolled face-centered-cubic zirconium METALS are polycrystalline aggregates, that...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... method exists to predict which metal-environment combinations will result in SCC; the available information is experiential and has been collected from laboratory data and industrial experience over the past century. Metals/alloys susceptible to SCC develop a protective film, such as an oxide or...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... detecting surface discontinuities by magnetic-particle inspection, liquid penetrant inspection, and eddy-current testing. The major NDE methods for internal (volumetric) inspection in failure analysis also are described. eddy-current testing liquid penetrant inspection magnetic-particle inspection...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... processes involved in RCA and the charting methods that may be useful in RCA and ends with a description of various factors associated with failure prevention. corrosion distortion failure prevention fracture quality assurance root cause analysis wear MACHINES, COMPONENTS, and the materials...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003044
EISBN: 978-1-62708-200-6
... design purposes, of tensile-test data generated in accordance with these two ASTM standards. Because both of these test methods involve straight-sided specimens, care must be taken so that failures do not consistently occur near the end tabs. Even for the tapered metal-matrix specimens, consistent...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003979
EISBN: 978-1-62708-185-6
... presence and type of elements subsidiary to the basic shape. Fig. 4 Classification of forging shapes. See text for details. This shape classification can be useful for practical purposes, such as estimating costs and predicting preforming steps. However, this method is not entirely quantitative...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
... dV where τ ∞ is the fatigue limit (a stress below which an infinite life is predicted to occur). The modern method that is generally used is ISO 281-2007 ( Ref 11 ). This technique includes the concept of a fatigue limit from Ioannides and Harris but otherwise is similar to Eq 3. Several...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003176
EISBN: 978-1-62708-199-3
..., and the molding method used. Designers can predict the effect of the design on the structure of the final part using solidification simulation models, namely finite element and finite difference models, and rapid prototyping. The article concludes with a short note on how the quality is assured in the...
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
... for initiation and early growth that are unrealistically high. Therefore, other methods based on nucleation and growth from inhomogeneities/regions of high local stress triaxiality have been developed. For example, Ghosh et al. ( Ref 21 ) have developed a constrained-plasticity model in which...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003172
EISBN: 978-1-62708-199-3
... lost foam casting metallic molds no-bake process permanent mold casting plaster casting sand molds semisolid casting vacuum molding MOLDING METHODS and materials encompass a wide range of options. Some molding (casting) processes are centuries old, while others did not exist two...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
... analysis is an essential tool for failure analysis. X-ray diffraction residual-stress measurement methods are commonly applied to the successful completion of failure analyses and, in many cases, are the only viable ones for the acquisition of the required data. X-ray diffraction residual-stress analysis...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... most applications for failure analysis, qualitative results are adequate, but the method can determine quantitative elemental compositions to a precision of 0.01 wt% with relative accuracies of ±5%, depending on the specific material, type of x-ray detector used, the method of data analysis employed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006043
EISBN: 978-1-62708-172-6
... methods are relatively fast and well suited for comparing the adhesion in numerous areas in a relatively short period of time. This speed can be a great advantage when failure analysis is performed to determine which areas have poor adhesion. The adhesion test requires a minimum of expensive equipment and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003058
EISBN: 978-1-62708-200-6
... failure analysis, it is wise to satisfy nearly identical requirements with respect to positive identification of the evidence, specification of the methods employed in analysis, reasoned interpretation of observations, and careful records at each stage of the analysis. Certainly the questions submitted by...