Development Of A Portable Low Strain Rate Testing Machine

Slow strain rate testing, is important in understanding the mechanical behaviour of material. It entails applying a slow dynamic strain with a constant extension rate to a specimen. Typical Universal Tensile Machine (UTM) can be used to determine the strain rate of a material. However, a machine tha...

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Main Author: Munusamy, Sharven
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2022
Subjects:
Online Access:http://eprints.usm.my/55552/1/Development%20Of%20A%20Portable%20Low%20Strain%20Rate%20Testing%20Machine_Sharven%20Munusamy.pdf
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author Munusamy, Sharven
author_facet Munusamy, Sharven
author_sort Munusamy, Sharven
collection USM
description Slow strain rate testing, is important in understanding the mechanical behaviour of material. It entails applying a slow dynamic strain with a constant extension rate to a specimen. Typical Universal Tensile Machine (UTM) can be used to determine the strain rate of a material. However, a machine that can couple low and high strain rate testing at a reasonable cost is usually not easily accessible. Therefore, this paper attempts to propose a design of concept that can be used in a high strain rate testing machine as well as to independently conduct low strain rate testing. Critical components such as the spring nut holder, pulling rod, moving grip holder and stationary grip holder were designed and fabricated. Whereas the frame which holds these components in place was reused from the machine part. A testing was done to verify that the prototype can perform as it is intended by comparing results with a UTM Gunt machine. The extension curve of the both machine and prototype were similar and the prototype was rigid (did not endure significant bending during the test). Finally, a scheme to connect to a SHPB machine to allow high strain and low strain testing capability on a unique SHPB setup was proposed.
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spelling usm.eprints-555522022-11-08T03:42:30Z http://eprints.usm.my/55552/ Development Of A Portable Low Strain Rate Testing Machine Munusamy, Sharven T Technology TJ Mechanical engineering and machinery Slow strain rate testing, is important in understanding the mechanical behaviour of material. It entails applying a slow dynamic strain with a constant extension rate to a specimen. Typical Universal Tensile Machine (UTM) can be used to determine the strain rate of a material. However, a machine that can couple low and high strain rate testing at a reasonable cost is usually not easily accessible. Therefore, this paper attempts to propose a design of concept that can be used in a high strain rate testing machine as well as to independently conduct low strain rate testing. Critical components such as the spring nut holder, pulling rod, moving grip holder and stationary grip holder were designed and fabricated. Whereas the frame which holds these components in place was reused from the machine part. A testing was done to verify that the prototype can perform as it is intended by comparing results with a UTM Gunt machine. The extension curve of the both machine and prototype were similar and the prototype was rigid (did not endure significant bending during the test). Finally, a scheme to connect to a SHPB machine to allow high strain and low strain testing capability on a unique SHPB setup was proposed. Universiti Sains Malaysia 2022-07-18 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/55552/1/Development%20Of%20A%20Portable%20Low%20Strain%20Rate%20Testing%20Machine_Sharven%20Munusamy.pdf Munusamy, Sharven (2022) Development Of A Portable Low Strain Rate Testing Machine. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanikal. (Submitted)
spellingShingle T Technology
TJ Mechanical engineering and machinery
Munusamy, Sharven
Development Of A Portable Low Strain Rate Testing Machine
title Development Of A Portable Low Strain Rate Testing Machine
title_full Development Of A Portable Low Strain Rate Testing Machine
title_fullStr Development Of A Portable Low Strain Rate Testing Machine
title_full_unstemmed Development Of A Portable Low Strain Rate Testing Machine
title_short Development Of A Portable Low Strain Rate Testing Machine
title_sort development of a portable low strain rate testing machine
topic T Technology
TJ Mechanical engineering and machinery
url http://eprints.usm.my/55552/1/Development%20Of%20A%20Portable%20Low%20Strain%20Rate%20Testing%20Machine_Sharven%20Munusamy.pdf
work_keys_str_mv AT munusamysharven developmentofaportablelowstrainratetestingmachine