Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens

Crack mouth opening displacement (CMOD) gauge was designed to perform fracture mechanic testing on fracture mechanic specimen. In this project, a CMOD gauge was developed to be used in fracture mechanic testing. The designed CMOD gauge follows the standard by ASTM E399-09. Selection of materials was...

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Main Author: Hamid, Siti Nuraimi Abdul
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2017
Subjects:
Online Access:http://eprints.usm.my/53552/
http://eprints.usm.my/53552/1/Development%20Of%20A%20Crack%20Mouth%20Displacement%20Gauge%20For%20Fracture%20Mechanics%20Specimens_Siti%20Nuraimi%20%20Abdul%20Hamid_M4_2017.pdf
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author Hamid, Siti Nuraimi Abdul
author_facet Hamid, Siti Nuraimi Abdul
author_sort Hamid, Siti Nuraimi Abdul
building USM Institutional Repository
collection Online Access
description Crack mouth opening displacement (CMOD) gauge was designed to perform fracture mechanic testing on fracture mechanic specimen. In this project, a CMOD gauge was developed to be used in fracture mechanic testing. The designed CMOD gauge follows the standard by ASTM E399-09. Selection of materials was taken to select suitable materials used to develop the CMOD gauge. Compact (CT) specimen was used as the fracture mechanic specimen for the test using fabricated CMOD gauge. From the test, crack mouth opening displacement, Vm was calculated with 0.075974 mm and compared with the theoretical value with error obtained was 1.3%. This result conclude that the designed CMOD gauge can be used to performed the fracture toughness test with error less than 5% which was considered low. Crack length propagation was calculated using strain for every 50 seconds. The crack length growth was calculated by using the strain value. The final cost calculated to fabricate the CMOD gauge was RM 364.19. The costs obtained was extremely cheaper than the current market price for CMOD gauge. The development of CMOD gauge proved to be cost effective and the developed CMOD gauge are able to performed fracture mechanic testing.
first_indexed 2025-11-15T18:36:52Z
format Monograph
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institution Universiti Sains Malaysia
institution_category Local University
language English
last_indexed 2025-11-15T18:36:52Z
publishDate 2017
publisher Universiti Sains Malaysia
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spelling usm-535522022-07-24T12:10:27Z http://eprints.usm.my/53552/ Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens Hamid, Siti Nuraimi Abdul T Technology TJ Mechanical engineering and machinery Crack mouth opening displacement (CMOD) gauge was designed to perform fracture mechanic testing on fracture mechanic specimen. In this project, a CMOD gauge was developed to be used in fracture mechanic testing. The designed CMOD gauge follows the standard by ASTM E399-09. Selection of materials was taken to select suitable materials used to develop the CMOD gauge. Compact (CT) specimen was used as the fracture mechanic specimen for the test using fabricated CMOD gauge. From the test, crack mouth opening displacement, Vm was calculated with 0.075974 mm and compared with the theoretical value with error obtained was 1.3%. This result conclude that the designed CMOD gauge can be used to performed the fracture toughness test with error less than 5% which was considered low. Crack length propagation was calculated using strain for every 50 seconds. The crack length growth was calculated by using the strain value. The final cost calculated to fabricate the CMOD gauge was RM 364.19. The costs obtained was extremely cheaper than the current market price for CMOD gauge. The development of CMOD gauge proved to be cost effective and the developed CMOD gauge are able to performed fracture mechanic testing. Universiti Sains Malaysia 2017-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53552/1/Development%20Of%20A%20Crack%20Mouth%20Displacement%20Gauge%20For%20Fracture%20Mechanics%20Specimens_Siti%20Nuraimi%20%20Abdul%20Hamid_M4_2017.pdf Hamid, Siti Nuraimi Abdul (2017) Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanik. (Submitted)
spellingShingle T Technology
TJ Mechanical engineering and machinery
Hamid, Siti Nuraimi Abdul
Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens
title Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens
title_full Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens
title_fullStr Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens
title_full_unstemmed Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens
title_short Development Of A Crack Mouth Displacement Gauge For Fracture Mechanics Specimens
title_sort development of a crack mouth displacement gauge for fracture mechanics specimens
topic T Technology
TJ Mechanical engineering and machinery
url http://eprints.usm.my/53552/
http://eprints.usm.my/53552/1/Development%20Of%20A%20Crack%20Mouth%20Displacement%20Gauge%20For%20Fracture%20Mechanics%20Specimens_Siti%20Nuraimi%20%20Abdul%20Hamid_M4_2017.pdf