Design of a dynamic tensile test rig

This report presents the design process of a Split Hopkinson Tension Bar for fiber substance (Nylon, Poly-propylene rope). The setup will be built from scratch and tested for results. Due to the nature of the testing specimen, poly-methyl-methacrylate (PMMA) will be used as the material for the inci...

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Main Author: Ang, Xin Yang
Other Authors: Lu Guoxing
Format: Final Year Project
Language:English
Published: 2012
Subjects:
Online Access:http://hdl.handle.net/10356/50295
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-502952023-03-04T19:17:32Z Design of a dynamic tensile test rig Ang, Xin Yang Lu Guoxing School of Mechanical and Aerospace Engineering DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics This report presents the design process of a Split Hopkinson Tension Bar for fiber substance (Nylon, Poly-propylene rope). The setup will be built from scratch and tested for results. Due to the nature of the testing specimen, poly-methyl-methacrylate (PMMA) will be used as the material for the incident and transmitter bars respectively. The setup will be used to test the dynamic tensile strain for the fiber. The quarter-bridge three wire strain gauge configuration will be mounted at three different positions. One strain gauge is mounted on the incident bar, close to the clamped area while the other two will be mounted 200mm away from the specimen. Each Wheatstone quarter bridge is excited by a TML Dynamic Strainmeter. The signals are then fed into a Yokogawa DLM2024 mixed signal oscilloscope. The results are tabulated using Microsoft Excel spreadsheet and graphs are presented for the stress-strain curve, strain rate curve and finally the strain curve. The results show similar trend to what is produced in other literature reviews but however, due to the current device set-up, the inability to produce the instantaneous release of the stress wave produces sub-standard graphs and waveform. Suggestions for improvements were then introduced. Bachelor of Engineering (Mechanical Engineering) 2012-05-31T06:48:13Z 2012-05-31T06:48:13Z 2012 2012 Final Year Project (FYP) http://hdl.handle.net/10356/50295 en Nanyang Technological University 92 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics
spellingShingle DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics
Ang, Xin Yang
Design of a dynamic tensile test rig
description This report presents the design process of a Split Hopkinson Tension Bar for fiber substance (Nylon, Poly-propylene rope). The setup will be built from scratch and tested for results. Due to the nature of the testing specimen, poly-methyl-methacrylate (PMMA) will be used as the material for the incident and transmitter bars respectively. The setup will be used to test the dynamic tensile strain for the fiber. The quarter-bridge three wire strain gauge configuration will be mounted at three different positions. One strain gauge is mounted on the incident bar, close to the clamped area while the other two will be mounted 200mm away from the specimen. Each Wheatstone quarter bridge is excited by a TML Dynamic Strainmeter. The signals are then fed into a Yokogawa DLM2024 mixed signal oscilloscope. The results are tabulated using Microsoft Excel spreadsheet and graphs are presented for the stress-strain curve, strain rate curve and finally the strain curve. The results show similar trend to what is produced in other literature reviews but however, due to the current device set-up, the inability to produce the instantaneous release of the stress wave produces sub-standard graphs and waveform. Suggestions for improvements were then introduced.
author2 Lu Guoxing
author_facet Lu Guoxing
Ang, Xin Yang
format Final Year Project
author Ang, Xin Yang
author_sort Ang, Xin Yang
title Design of a dynamic tensile test rig
title_short Design of a dynamic tensile test rig
title_full Design of a dynamic tensile test rig
title_fullStr Design of a dynamic tensile test rig
title_full_unstemmed Design of a dynamic tensile test rig
title_sort design of a dynamic tensile test rig
publishDate 2012
url http://hdl.handle.net/10356/50295
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