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process modeling

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Published: 01 June 2019
Fig. 14 Process block diagram for fatigue model used to simulate the fatigue behavior of the helical springs in compressors during start/stop testing More
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
... Abstract This article focuses on the types of activities required for the resolution of wear problems. These include examining and characterizing the tribosystem; characterizing and modeling the wear process; obtaining and evaluating wear data; and evaluating and verifying the solution...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... the modeling and prototyping of new designs of parts from designs developed in computer programs. Distributed computing and dedicated computation capability are critical in the AM process, because each AM machine needs to form the part digitally, transferring the three-dimensional (3D) computer model...
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
... be a physical, mathematical, or logical representation of a physical system or process. accident reconstruction failure analysis modeling FAILURE ANALYSIS is generally defined as the investigation and analysis of parts or structures that have failed or appeared to have failed to perform...
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
... of a physical system or process. The use of modeling can be a very powerful tool for information pertaining to the reconstruction of an accident. Whether the modeling consists of simple mathematical modeling of a physical system or more complex computer modeling of a system or part, the results of the analysis...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c0090639
EISBN: 978-1-62708-227-3
... stresses created by the welding process ( Ref 1 ). Finite-element models ( Fig. 1 ) were used to predict residual stresses in the areas of high stress concentration introduced during the manufacturing (welding) process and additional applied stresses introduced by the “sagging” loads inherent...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001788
EISBN: 978-1-62708-241-9
... with process parameters, design features, and life cycle data. The fatigue damage models are based on Morrow’s stress and strain-life models for flat extrusion die and account for bearing length, fillet radius, temperature, and strain rate. They were shown to provide useful information for the analysis...
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
... perform a variety of analyses including structural and thermal, static and transient, linear and nonlinear, and more. The programs are thorough, detailed, and relatively complex and rely heavily on the analyst to accurately create models, understand the solution process, and interpret the results...
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
.... The programs are thorough, detailed, and relatively complex and rely heavily on the analyst to accurately create models, understand the solution process, and interpret the results. Currently there are numerous commercial software packages available with a variety of options designed for use on all types of PC...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... Abstract This article describes the methodology for performing a failure modes and effects analysis (FMEA). It explains the methodology with the help of a hot water heater and provides a discussion on the role of FMEA in the design process. The article presents the analysis procedures and shows...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006930
EISBN: 978-1-62708-395-9
...-polymer pseudo-network structures remain intact and contribute to the modulus value. However, in steady flow and in actual processing, the material is sheared to the point where structures are broken down, which results in decreases in the modulus and viscosity. Table 7 lists common models...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001760
EISBN: 978-1-62708-241-9
... Fig. 2 Dimensions of the bolt according to DIN906 standard Fig. 3 The shape of the bolt and the hole Fig. 12 Results of SEM investigations near the cracked surface Fig. 13 The finite element model with and without the refined meshings around the hole of casting process...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006827
EISBN: 978-1-62708-329-4
... at the assembly level. This article covers the properties of solder alloys and the corresponding intermetallic compounds. It includes the dominant failure modes introduced during the solder joint manufacturing process and in field-use applications. The corresponding failure mechanism and root-cause analysis...
Image
Published: 01 December 2019
Fig. 13 The finite element model with and without the refined meshings around the hole of casting process More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001647
EISBN: 978-1-62708-235-8
... on pore diameter than axial gap because the axial gap tends to close during the welding process. This effect is addressed in the model by ignoring the first 0.51 mm (0.020 in.) of any axial gap. The agreement between this model and actual pore size is shown in Fig. 5 . Note that the model predicts only...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001021
EISBN: 978-1-62708-214-3
... Discussion Conclusion and Recommendations Calibration of Crack Growth Model Scanning Electron Microscopy/Fractography Crack Origins/Paths Chemical Analysis/Identification Simulation Tests Simulation Specimens Background Applications Circumstances Leading to Failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.pulp.c0090276
EISBN: 978-1-62708-230-3
... is placed on the rotating face of the dryer, which is located toward the back end of a crepe papermaking machine. As the dryer rotates, contact with the high-temperature face removes considerable moisture from the paper by the time it is removed from the dryer. The drying process only occurs while the paper...
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: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006807
EISBN: 978-1-62708-329-4
... temperatures. The article describes the stages of the creep curve, discusses processes involved in the extrapolation of creep data, and summarizes notable creep constitutive models and continuum damage mechanics models. It demonstrates the effects of stress relaxation and redistribution on the remaining life...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001596
EISBN: 978-1-62708-225-9
.... 13 Schematic diagram showing stress as a function of cycles to failure used to describe the linear damage theory Based on the above theory, the fatigue model will predict or accumulate the fatigue for each start/stop cycle for 500,000 cycles. The process map for the Monte Carlo model...