Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars

The extensive studies of metal alloys in the engineering industry provide us with a wide range of metal selection for our applications and design. Different combination of the metal element will result in different physical and mechanical properties of the metal alloys. The Split Hopkinson Pressure...

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Bibliographic Details
Main Author: Lim, Leroy Boon Peng.
Other Authors: Shu Dong Wei
Format: Final Year Project (FYP)
Language:English
Published: 2011
Subjects:
Online Access:http://hdl.handle.net/10356/46089
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author Lim, Leroy Boon Peng.
author2 Shu Dong Wei
author_facet Shu Dong Wei
Lim, Leroy Boon Peng.
author_sort Lim, Leroy Boon Peng.
collection NTU
description The extensive studies of metal alloys in the engineering industry provide us with a wide range of metal selection for our applications and design. Different combination of the metal element will result in different physical and mechanical properties of the metal alloys. The Split Hopkinson Pressure Bar (SHPB) is a frequently used technique to examine the materials and provide a better understanding of the materials‟ behavior when subject to dynamic loading. The material will exhibit a different stress-strain behavior from that under static loading and the main emphasis is to discover the behavior of initial kinetic energy in a specimen. As it is known, the results obtained from experiments conducted in the laboratory are always different to a certain degree of accuracy even though they are repeated many times under same operating conditions. In the case of the SHPB tests, the handling of strain gauges and the oscilloscope are crucial to obtain accurate results. Calibration on the equipments and apparatus setup will also help improve accuracy. However, researchers have a problem in determining the correct value from a set of data collected from repeated experiments due to the variability. This project aims to gather, analyze and make inferences and also apply different statistical analysis methods on these sets of data to obtain more accurate results.
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spelling ntu-10356/460892023-03-04T19:14:10Z Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars Lim, Leroy Boon Peng. Shu Dong Wei School of Mechanical and Aerospace Engineering DRNTU::Engineering The extensive studies of metal alloys in the engineering industry provide us with a wide range of metal selection for our applications and design. Different combination of the metal element will result in different physical and mechanical properties of the metal alloys. The Split Hopkinson Pressure Bar (SHPB) is a frequently used technique to examine the materials and provide a better understanding of the materials‟ behavior when subject to dynamic loading. The material will exhibit a different stress-strain behavior from that under static loading and the main emphasis is to discover the behavior of initial kinetic energy in a specimen. As it is known, the results obtained from experiments conducted in the laboratory are always different to a certain degree of accuracy even though they are repeated many times under same operating conditions. In the case of the SHPB tests, the handling of strain gauges and the oscilloscope are crucial to obtain accurate results. Calibration on the equipments and apparatus setup will also help improve accuracy. However, researchers have a problem in determining the correct value from a set of data collected from repeated experiments due to the variability. This project aims to gather, analyze and make inferences and also apply different statistical analysis methods on these sets of data to obtain more accurate results. Bachelor of Engineering (Mechanical Engineering) 2011-06-29T00:52:11Z 2011-06-29T00:52:11Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/46089 en Nanyang Technological University 55 p. application/pdf
spellingShingle DRNTU::Engineering
Lim, Leroy Boon Peng.
Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
title Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
title_full Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
title_fullStr Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
title_full_unstemmed Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
title_short Statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
title_sort statistical analysis of dynamic experimental data from compression and tensile hopkinson bars
topic DRNTU::Engineering
url http://hdl.handle.net/10356/46089
work_keys_str_mv AT limleroyboonpeng statisticalanalysisofdynamicexperimentaldatafromcompressionandtensilehopkinsonbars