1-20 of 28 Search Results for

experimental uncertainty

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006803
EISBN: 978-1-62708-329-4
..., the uncertainty distribution is constructed by gathering a sample of potential values for the variable of interest, either numerically or experimentally. The results can be represented as a vector: O = ( o 1 , o 2 , … , o M ) where o i represents the i th observation, and M...
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
... Abstract This article describes the historical background, uncertainties in structural parameters, classifications, and application areas of probabilistic analysis. It provides a discussion on the basic definition of random variables, some common distribution functions used in engineering...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001319
EISBN: 978-1-62708-215-0
... for the dished ends was to conform to AISI 304L stainless steel. They were to be manufactured by cold spinning; no stress relieving was specified. Performance of Other Parts in Same or Similar Service There is always an element of uncertainty in the occurrence of this type of transgranular stress...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001560
EISBN: 978-1-62708-217-4
... the compounds present in the residue. The results of these studies are also presented. Experimental Procedures Test Apparatus and Testing Procedures For the constant extension rate testing an Instron tensile testing machine, model TT-C-L, was modified using a 248:1 gear reducer to produce crosshead...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... of the validity of the mechanisms and extrapolation procedures used, the intrinsic experimental uncertainty of the measurements will be magnified the more the results are extrapolated. High temperatures may cause chemical or phase changes in the material, which could limit the possibility of extrapolating...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... with increasingly sophisticated finite-element thermal stress analysis. Development of more refined engineering-based models should result in less reliance on component simulation, which is subject to some uncertainty. It has been customary to characterize materials in terms of their fatigue and creep...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... and plasticity, expected from the tensile test results. The more detailed discussion of this comparison in Ref 5 demonstrates that predictions of strains on the component also agreed with strain gage data to within 5%. As can be seen, the correlation with experimental measurement is very good. In addition...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006910
EISBN: 978-1-62708-395-9
... ) for the construction of the crack growth resistance curve ( J-R curve) of polymers. Known as the normalization method, it relies on the representation of J vs Δ a ( Ref 38 – 40 ), trying to overcome some of the problems of the multi-specimen methodology, which are mainly based on uncertainties associated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... are described in terms of the remote or far-field stress of the component by multiplying the remote stress by a stress concentration factor. Stress concentration factors for various geometric details are derived from the theory of elasticity and/or obtained experimentally. Fatigue tests have shown...
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
... position sensors or the use of more than one camera to measure the rotation of a laser diode and to reconstruct the object structure ( Ref 10 ). Although there are a number of uncertainties to be considered with scanners, laser scanners are quite useful as inspection tools, with measurement accuracies...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... the manufacturer a comfort level in terms of using the product if there have been no failures or very few failures. Field experience can be a valuable data point for a product but is not conducive to predicting the life of any individual part because of the uncertainty in the service conditions it may experience...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006940
EISBN: 978-1-62708-395-9
... mechanics extrapolation concepts for accelerated prediction of HDPE pipe materials using short-time fatigue tests provide valid results when compared to prenotched internal pipe pressure tests ( Ref 33 ). However, it was emphasized that uncertainties due to changes in environmental conditions, temperature...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... has elapsed. Calculations predict life exhaustion. Service time has reached some arbitrarily chosen fraction of calculated or experimental failure life. Previous failure statistics indicate high probability of failure. Frequency of repair renders continued operation uneconomical...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... changes product quality. Investigative work has demonstrated the practicality of on-line rheometry. Dynamic Mechanical Properties of Solids When discussing the rheological behavior of a polymer, it is also important to consider the viscoelastic response of the solid. The most common experimental...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006802
EISBN: 978-1-62708-329-4
... elapsed. Calculations predict life exhaustion. Service time has reached some arbitrarily chosen fraction of calculated or experimental failure life. Previous failure statistics indicate high probability of failure. Frequency of repair renders continued operation uneconomical. Nondestructive...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
.... Service time has reached some arbitrarily chosen fraction of calculated or experimental failure life. Previous failure statistics indicate high probability of failure. Frequency of repair renders continued operation uneconomical. Nondestructive inspection reveals cracking. Surface degradation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... occurring by assuring that stresses in service do not reach a critical level. Uncertainty and unknowns in analysis, manufacture, service, and material conditions are typically addressed by applying so-called “factors of safety.” Analysis of Applied Stresses Stress analysis provides a road map...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006807
EISBN: 978-1-62708-329-4
... the stress as a function of LMP. LMP, Larson-Miller parameter Despite its widespread acceptance, the LMP approach is not considered to be any more accurate than its counterparts, and a multitude of similar approaches have been shown to be reasonable approximations of the experimental data, partly...