Predicting the crack initiation fracture toughness for a crack along the bimaterial interface
Three Point Bend (3PB) bimaterial specimens of PMMA/PC were made by joining the two materials using friction welding. The specimens were tested and the crack initiation loads were recorded to evaluate the K using ASTM standard E 1820-01. Stress field in the crack tip vicinity was studied using finit...
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Asian Network for Scientific Information
2005
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iium-56582013-07-17T07:34:22Z http://irep.iium.edu.my/5658/ Predicting the crack initiation fracture toughness for a crack along the bimaterial interface Shah, Qasim Hussain Azram, Mohammad Iliyas, M. H. TJ227 Machine design and drawing Three Point Bend (3PB) bimaterial specimens of PMMA/PC were made by joining the two materials using friction welding. The specimens were tested and the crack initiation loads were recorded to evaluate the K using ASTM standard E 1820-01. Stress field in the crack tip vicinity was studied using finite element IC analysis of the specimen model. Normal and shear stresses were recorded for a series of nodes ahead of the crack tip at (2=0°). SIF values were calculated using these stress values and it was found that the stresses at a certain distance lying outside the process zone provide a SIF value matching to that of experimental fracture toughness of the specimen under study. Based upon the experimental evidence and finite element analysis, a simple step by step procedure is proposed to calculate the fracture toughness of bimaterials for a complex stress field. Asian Network for Scientific Information 2005 Article PeerReviewed application/pdf en http://irep.iium.edu.my/5658/1/253-256.pdf Shah, Qasim Hussain and Azram, Mohammad and Iliyas, M. H. (2005) Predicting the crack initiation fracture toughness for a crack along the bimaterial interface. Journal of Applied Sciences, 5 (2). pp. 253-256. ISSN 1812-5654 http://scialert.net/abstract/?doi=jas.2005.253.256 |
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TJ227 Machine design and drawing |
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TJ227 Machine design and drawing Shah, Qasim Hussain Azram, Mohammad Iliyas, M. H. Predicting the crack initiation fracture toughness for a crack along the bimaterial interface |
description |
Three Point Bend (3PB) bimaterial specimens of PMMA/PC were made by joining the two materials using friction welding. The specimens were tested and the crack initiation loads were recorded to evaluate the K using ASTM standard E 1820-01. Stress field in the crack tip vicinity was studied using finite element IC analysis of the specimen model. Normal and shear stresses were recorded for a series of nodes ahead of the crack tip at (2=0°). SIF values were calculated using these stress values and it was found that the stresses at
a certain distance lying outside the process zone provide a SIF value matching to that of experimental fracture
toughness of the specimen under study. Based upon the experimental evidence and finite element analysis, a
simple step by step procedure is proposed to calculate the fracture toughness of bimaterials for a complex stress
field. |
format |
Article |
author |
Shah, Qasim Hussain Azram, Mohammad Iliyas, M. H. |
author_facet |
Shah, Qasim Hussain Azram, Mohammad Iliyas, M. H. |
author_sort |
Shah, Qasim Hussain |
title |
Predicting the crack initiation fracture toughness
for a crack along the bimaterial interface |
title_short |
Predicting the crack initiation fracture toughness
for a crack along the bimaterial interface |
title_full |
Predicting the crack initiation fracture toughness
for a crack along the bimaterial interface |
title_fullStr |
Predicting the crack initiation fracture toughness
for a crack along the bimaterial interface |
title_full_unstemmed |
Predicting the crack initiation fracture toughness
for a crack along the bimaterial interface |
title_sort |
predicting the crack initiation fracture toughness
for a crack along the bimaterial interface |
publisher |
Asian Network for Scientific Information |
publishDate |
2005 |
url |
http://irep.iium.edu.my/5658/ http://irep.iium.edu.my/5658/ http://irep.iium.edu.my/5658/1/253-256.pdf |
first_indexed |
2023-09-18T20:14:22Z |
last_indexed |
2023-09-18T20:14:22Z |
_version_ |
1777407688814100480 |