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dimensional evaluation

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001490
EISBN: 978-1-62708-232-7
..., transmission electron microscopy, optical microscopy, and x-ray microanalysis in conjunction with dimensional analysis, phase diagrams and thermodynamics considerations were employed to evaluate the various hypotheses. All evidence pointed to an oxide mass in the area where the hole developed, likely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001583
EISBN: 978-1-62708-217-4
...Abstract Abstract The purpose of this investigation was to determine the root cause of the differences noted in the fatigue test data of main rotor spindle assembly retaining rods fabricated from three different vendors, as part of a Second Source evaluation process. ARL performed dimensional...
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
...-particle inspection radiography surface discontinuities surface inspection ultrasonic inspection NONDESTRUCTIVE TESTING (NDT), also known as nondestructive evaluation (NDE), includes various techniques to characterize materials without damage. The methods of NDE involve dimensional metrology...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006772
EISBN: 978-1-62708-295-2
...-scale incidents such as the one shown in Fig. 1 , where the sequence of events leading to the incident must be understood in order to properly focus further examination and evaluation by specialists such as materials failure analysts. Methods of field inspection and initial examination are also...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0065827
EISBN: 978-1-62708-221-1
... with superior properties was initiated. The nominal composition of Fe-0.50C-0.30Mn-0.40Si-5.00Cr-2.00Mo was developed which achieved the goals of edge retention, resistance to softening under frictional heating, wear resistance, ease of heat treatment, dimensional stability in heat treatment, grindability...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006773
EISBN: 978-1-62708-295-2
...Abstract Abstract When complex designs, transient loadings, and nonlinear material behavior must be evaluated, computer-based techniques are used. This is where the finite-element analysis (FEA) is most applicable and provides considerable assistance in design analysis as well as failure...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003526
EISBN: 978-1-62708-180-1
... Fig. 1 Common types of finite elements used in modeling with examples. (a) Beam spar elements used to construct, for example, a beam element model. (b) Two-dimensional solid-model element with example. (c) Two-dimensional axisymmetric solid-model element with example. (d) Three-dimensional...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001598
EISBN: 978-1-62708-232-7
... several days to complete. Nondestructive Analyses Dimensional and Metallurgical Evaluation The failure analysis demonstrated that long term elevated temperature exposure degraded the CIM. Voids on the grain boundaries and significant grain growth in the area adjacent to the holes...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001315
EISBN: 978-1-62708-215-0
... to Failure Performance of Other Parts in the Same or Similar Service No specific features could be identified from visual examination of the bellows. Non-Destructive Evaluation Metallography When the bellows operated under tensile loading conditions, the cracklike opening at the center load...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001618
EISBN: 978-1-62708-219-8
... rate. The sources of residual stress included welding, environment, and assembly operation. Chemistry Dimensional tolerance Embrittlement Heat-affected zone Residual stress Tensile strength Weld ASTM A588 Fatigue fracture Joining-related failures Background Investigation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0090277
EISBN: 978-1-62708-229-7
.... It also included FEA (thermal gradients, nonlinear material behavior, residual stress, changes in wall thickness during the formation of U-bends, and TSP distortions near the ruptured tube) of three-dimensional solid models of the U-tubes. The conclusion was that distortion of the TSPs and resulting...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003558
EISBN: 978-1-62708-180-1
... and modeling the wear process; obtaining and evaluating wear data; and evaluating and verifying the solution. References References 1. Budinski K. , Incipient Galling of Metals , Proc. Intl. Conf. On Wear of Materials , ASME , 1981 , p 171 – 185 2. Lutynski C. , Simansky G...
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 Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003525
EISBN: 978-1-62708-180-1
...) is a thermal analysis method in which linear or volumetric dimensional changes are measured as a function of temperature, time, or force ( Ref 2 ). Thermomechanical analysis is used to study the structure of a polymeric material by evaluating the implications of the material dimensional changes...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001580
EISBN: 978-1-62708-229-7
...Abstract Abstract Laser surface mapping of a canister closure weld provided data that was used to generate three-dimensional images of the weld failure. These images were invaluable in that they allowed people who did not have access to the canister to see the anomaly in great detail...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003523
EISBN: 978-1-62708-180-1
... large-scale incidents such as the one shown in Fig. 1 , where the sequence of events leading to the incident must be understood in order to properly focus further examination and evaluation by specialists such as materials failure analysts. Methods of field inspection and initial examination also...
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
... be evaluated; thus, their presence can lead to erroneous results ( Ref 29 , 30 ). However, if the goniometer is capable of multiple ψ or ψ, φ orientations with the ability to collect full or partial Debye rings, accurate shear stresses may be obtained. In addition, if a two-dimensional detector is used...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001697
EISBN: 978-1-62708-219-8
... at the threaded connections on these pipes. A year following the first observation of leaks, the problems appeared to have increased in frequency, at which time it was decided that a detailed evaluation of the cause of the problem was necessary. In order to investigate the problem, several tests were...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003514
EISBN: 978-1-62708-180-1
... for performing a probabilistic life assessment. The article is organized in terms of an introduction, description of the elements of probabilistic analysis, evaluation of the probability of failure, advanced concepts, case histories, and available probabilistic analysis software. The section “Introduction...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006801
EISBN: 978-1-62708-329-4
.../loose metal, and springback/dimensional. It discusses the processes involved in analytical tools that aid in characterizing the state of a formed part. In addition, information on draw panel analysis and troubleshooting of sheet forming failures is also provided. draw panel analysis fractures...