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Integrated Modelling and Testing of Engineering Structures : = A Validation Approach for Multi-Physics Simulations.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Integrated Modelling and Testing of Engineering Structures :/
Reminder of title:	A Validation Approach for Multi-Physics Simulations.
Author:	Eseigbe, Shirley Nwakaego.
Description:	1 online resource (162 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-05, Section: B.
Contained By:	Dissertations Abstracts International84-05B.
Subject:	Software. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29449756click for full text (PQDT)
ISBN:	9798352968376

Integrated Modelling and Testing of Engineering Structures : = A Validation Approach for Multi-Physics Simulations.
Eseigbe, Shirley Nwakaego.

Integrated Modelling and Testing of Engineering Structures :A Validation Approach for Multi-Physics Simulations. - 1 online resource (162 pages)

Source: Dissertations Abstracts International, Volume: 84-05, Section: B.

Thesis (Ph.D.)--The University of Liverpool (United Kingdom), 2022.

Includes bibliographical references

The aim of this project was to develop an extended approach for the validation of multi-physics models, using quantitative full-field data obtained from a carefully designed validation experiment. This work was performed to meet one of the technological gaps identified for an Integrated Nuclear Digital Environment (INDE), which was the need to develop a multi-scale and multi-physics validation method.An enhanced multi-physics process flowchart containing three different physics domains, thermal, mechanical, and thermomechanical domains, has been successfully developed, which details the approach for validation of multi-physics models using quantitative experimental data. The new enhanced process flowchart was built from the flowcharts in the ASME and CEN V&V guides, with a focus on the design of validation experiments. As part of this research's objectives, the processes in the new flowchart were successfully tested using an industrial case study and carefully designed experiments that captured each physics component.Three experiments, thermal expansion, three-point bending, and combined thermal expansion and three-point bending experiments, were successfully designed and tested to explore the processes of the enhanced validation flowchart. The comparison between the results obtained from the simulations and the measurements indicated a good level of agreement. A high degree of linearity was observed for the load versus displacement relationships for the physical experiments and the simulations. The superposition principle was employed to mathematically combine the data from the single physics domains to account for the overall effect of the multi-physics domains. The results obtained from the superposition of different physics data were in good agreement with those obtained from the multi-physics data, indicating that the multi-physics experiment successfully captured the boundary conditions of the individual physics domain. In this research, a system calibration experiment was performed for each experimental setup (thermal, mechanical, and combined thermal-mechanical experiments) to determine the uncertainty associated with each physical measurement. The results determined from the calibration experiment was used to determine the allowable or acceptable scatter in the comparison plots.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798352968376Subjects--Topical Terms:

619355
Software.
Index Terms--Genre/Form:

542853
Electronic books.

Integrated Modelling and Testing of Engineering Structures : = A Validation Approach for Multi-Physics Simulations.
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520 $a The aim of this project was to develop an extended approach for the validation of multi-physics models, using quantitative full-field data obtained from a carefully designed validation experiment. This work was performed to meet one of the technological gaps identified for an Integrated Nuclear Digital Environment (INDE), which was the need to develop a multi-scale and multi-physics validation method.An enhanced multi-physics process flowchart containing three different physics domains, thermal, mechanical, and thermomechanical domains, has been successfully developed, which details the approach for validation of multi-physics models using quantitative experimental data. The new enhanced process flowchart was built from the flowcharts in the ASME and CEN V&V guides, with a focus on the design of validation experiments. As part of this research's objectives, the processes in the new flowchart were successfully tested using an industrial case study and carefully designed experiments that captured each physics component.Three experiments, thermal expansion, three-point bending, and combined thermal expansion and three-point bending experiments, were successfully designed and tested to explore the processes of the enhanced validation flowchart. The comparison between the results obtained from the simulations and the measurements indicated a good level of agreement. A high degree of linearity was observed for the load versus displacement relationships for the physical experiments and the simulations. The superposition principle was employed to mathematically combine the data from the single physics domains to account for the overall effect of the multi-physics domains. The results obtained from the superposition of different physics data were in good agreement with those obtained from the multi-physics data, indicating that the multi-physics experiment successfully captured the boundary conditions of the individual physics domain. In this research, a system calibration experiment was performed for each experimental setup (thermal, mechanical, and combined thermal-mechanical experiments) to determine the uncertainty associated with each physical measurement. The results determined from the calibration experiment was used to determine the allowable or acceptable scatter in the comparison plots.
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