Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts

A glass plate was subjected to impact by spherical copper and steel projectiles at low velocities. The glass failure features consisted of a central Hertzian cone made up of comminuted glass and a spider web like cracking pattern around the cone with circumferential and radial cracks. The objecti...

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Main Authors: Shah, Qasim Hussain, Aung, Kya Myo
Format: Article
Language:English
Published: IIUM Press 2014
Subjects:
Online Access:http://irep.iium.edu.my/39242/
http://irep.iium.edu.my/39242/1/499-2053-1-PB.pdf
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author Shah, Qasim Hussain
Aung, Kya Myo
author_facet Shah, Qasim Hussain
Aung, Kya Myo
author_sort Shah, Qasim Hussain
building IIUM Repository
collection Online Access
description A glass plate was subjected to impact by spherical copper and steel projectiles at low velocities. The glass failure features consisted of a central Hertzian cone made up of comminuted glass and a spider web like cracking pattern around the cone with circumferential and radial cracks. The objective of the investigation was to determine if the damage caused by copper projectile impact compared to steel projectile impact was higher for the same kinetic energy (K.E.) projectiles and the reason for this phenomenon. For the constant K.E. impact, copper projectile apparently caused higher damage in glass plate. Higher damage was attributed to projectile contact duration and the contact area between the projectile and the glass plate. Finite element analysis using LS-DYNA based upon maximum principal strain failure criterion for laminated glass model was able to predict the failed material under the impact location and the cracking pattern in the glass plate for a biased meshing scheme. Radial cracks in glass target were reported to be 15% higher for copper projectile impact than the steel projectile impact.
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spelling iium-392422017-11-02T01:29:34Z http://irep.iium.edu.my/39242/ Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts Shah, Qasim Hussain Aung, Kya Myo U Military Science (General) A glass plate was subjected to impact by spherical copper and steel projectiles at low velocities. The glass failure features consisted of a central Hertzian cone made up of comminuted glass and a spider web like cracking pattern around the cone with circumferential and radial cracks. The objective of the investigation was to determine if the damage caused by copper projectile impact compared to steel projectile impact was higher for the same kinetic energy (K.E.) projectiles and the reason for this phenomenon. For the constant K.E. impact, copper projectile apparently caused higher damage in glass plate. Higher damage was attributed to projectile contact duration and the contact area between the projectile and the glass plate. Finite element analysis using LS-DYNA based upon maximum principal strain failure criterion for laminated glass model was able to predict the failed material under the impact location and the cracking pattern in the glass plate for a biased meshing scheme. Radial cracks in glass target were reported to be 15% higher for copper projectile impact than the steel projectile impact. IIUM Press 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/39242/1/499-2053-1-PB.pdf Shah, Qasim Hussain and Aung, Kya Myo (2014) Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts. IIUM Engineering Journal, 15 (1). pp. 17-31. ISSN 1511-788X http://journals.iium.edu.my/ejournal/index.php/iiumej
spellingShingle U Military Science (General)
Shah, Qasim Hussain
Aung, Kya Myo
Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
title Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
title_full Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
title_fullStr Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
title_full_unstemmed Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
title_short Investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
title_sort investigation of glass plate failure mechanism subjected to copper and steel projectile impacts
topic U Military Science (General)
url http://irep.iium.edu.my/39242/
http://irep.iium.edu.my/39242/
http://irep.iium.edu.my/39242/1/499-2053-1-PB.pdf