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proof load testing

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... Abstract This article describes testing and characterization methods of ceramics for chemical analysis, phase analysis, microstructural analysis, macroscopic property characterization, strength and proof testing, thermophysical property testing, and nondestructive evaluation techniques...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003060
EISBN: 978-1-62708-200-6
... in detailed design procedure. The article provides information on the proof testing of ceramics, and presents a short note on public domain software that helps determine the reliability of a loaded ceramic component. The article concludes with several design scenarios for gas turbine components...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
...) . The chemical composition of the fasteners was not verified, but proof load and tension testing of exemplar screws from the same lot revealed satisfactory results. The level of necking on the tension-tested screws was analogous to those that failed during installation. Fig. 2 Fracturing of high...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... correlates with the proof stress of the sheet material and the microstructure of the tool. Galling normally occurs at higher contact pressures for the high-strength sheet material (i.e., metastable austenitic sheet material), while sliding against a low-strength material (i.e., EN 1.4301) results in galling...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... prevention measures to avoid future failures. Consequently, an optimized fatigue design is mainly characterized by a suitable fatigue-proof material with an adequate combination of strength and toughness, optimized surface finish, favorable surface treatment, mild notches and soft stiffness changes...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006252
EISBN: 978-1-62708-169-6
.... This is illustrated in Fig. 4 , where the residual stress is shown to vary with the as-quenched 0.2% proof stress, measured after a postquench delay of 30 min. Fig. 4 Variation of surface residual-stress magnitudes produced by cold water quenching ( T W < 20 °C, or 70 °F) rectilinear block...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... effects of hydrogen embrittlement also can be varied, and many other damage mechanisms can cause fracture appearances that are very similar to those displayed by hydrogen embrittlement. Another difficulty is the detection of hydrogen as proof, because detecting the miniscule concentrations of hydrogen...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003041
EISBN: 978-1-62708-200-6
... the operating pressure of the autoclave, and popoff safety valves with the same function. A standard production autoclave has all three. Vessels are usually proof tested to high margins of safety, but the danger posed by the possibility of a burst vessel cannot be overemphasized. Overtemperature...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003051
EISBN: 978-1-62708-200-6
... supports for rural mail boxes. In addition, brick may be used for load-bearing structures. Brick facing is prized for its beauty, variety, fire-proofness, low maintenance, and long life. In housing, savings in maintenance and insurance costs make brick facing lower in cost than its competition (e.g...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005955
EISBN: 978-1-62708-166-5
... pumps prior to introduction of any gas needed for successful processing. Vacuum furnaces employ a special vacuum pump to remove most of the atmospheric air, before and during the heating of the work. In a leak-proof vacuum furnace, less than 0.001% of the original air remains when operating at a...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006454
EISBN: 978-1-62708-190-0
... loadings routinely applied for the AE inspection of new and in-service pressure vessels and other large structures. Examples include production testing of brazed joints ( Ref 2 ) and the fully automated proof testing of welds in steel ammunition-belt links described in the following example. Acoustic...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005940
EISBN: 978-1-62708-166-5
... for the investigation of larger numbers of parameters by a limited number of samples, and can be structured into system analysis, test strategy, test procedure, and test evaluation. Level 2 focuses on understanding the distortion mechanisms by using the concept of distortion potential and its carriers...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003127
EISBN: 978-1-62708-199-3
... castings is not recommended; simulated service (proof) testing is considered more appropriate. Premium engineered castings provide higher levels of quality and reliability than are found in conventionally produced parts. These castings may display optimum performance in one or more of the following...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006671
EISBN: 978-1-62708-213-6
.... Understressing uses a relatively low stress to remove most flawed parts and improve the statistics of failure for a moderate load. Overstressing applies loads greater than the design stress to obtain an additional margin of safety. If the proof test enlarges flaws, it could lessen performance and reliability...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005925
EISBN: 978-1-62708-166-5
... thermometers fall under the noncontact type. The article describes two types of instrumentation used in heat treating: field test instruments for temperature-uniformity surveys and system-accuracy tests; and controlling, monitoring, and recording instruments for digital instrumentation. electrical...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001834
EISBN: 978-1-62708-181-8
... images at the same magnification. All four fractographs are of different areas. Figure 6 shows the interface between the fatigue precrack and test fracture of an X-750 nickel-base superalloy subsize Charpy rising-load test specimen after testing in pure water at 95 °C (200 °F). The interface region...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005323
EISBN: 978-1-62708-187-0
... intended to be produced as gray iron castings must be evaluated for the specific service conditions before being approved for production. Often, a stress analysis of prototype castings helps establish the appropriate class of gray iron, mold design, as well as any proof test requirements or other...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005355
EISBN: 978-1-62708-187-0
..., thus inducing greater amounts of energy to those areas that require it most. Multiple-station fixtures are normally built to clean two, three, or four castings simultaneously. These core knockout fixtures must be isolated from their support structures by vibration-proof mounts. Dedicated fixtures are...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006465
EISBN: 978-1-62708-190-0
... density, such as pores and hot tears. Figure 6 illustrates deviations from the specified CAD file dimensions for three methods of producing AM components with polymers as a proof of concept ( Ref 29 ). Lack of fusion type defects in powder bed based AM tend to be filled with unconsolidated powder...