ORCID Profile
0000-0001-9374-9763
Current Organisation
University of Dublin Trinity College
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Publisher: Elsevier BV
Date: 08-2017
Publisher: Elsevier BV
Date: 09-2015
Publisher: MDPI AG
Date: 30-01-2018
DOI: 10.3390/MET8020100
Publisher: Elsevier BV
Date: 02-2015
Publisher: Elsevier BV
Date: 08-2013
Publisher: Trans Tech Publications, Ltd.
Date: 02-2011
DOI: 10.4028/WWW.SCIENTIFIC.NET/KEM.471-472.20
Abstract: Natural fibres offer a number of benefits as reinforcement for synthetic polymers since they have high specific strength and stiffness, high impact strength, biodegradability etc. The aim of this study is to fabricate and determine the performance of unidirectional silk fibre reinforced polymer composites. In the present initial study, alkali treated silk fibres were incorporated as reinforcing agent, while a mixture of 20% maleic anhydride grafted polypropylene (MAPP) and commercial grade polypropylene (PP) was used as matrix element. The unidirectional composites were fabricated by using hot compression machine under specific pressure, temperature and varying fibre loading. Tensile, flexural, impact and hardness tests were carried out by varying silk fibre volume fraction. Composites containing 45% fibre volume fraction had higher tensile and flexural strength, Young’s modulus and flexural modulus compared to other fabricated composites including those with untreated silk fibres. SEM micrographs were taken to examine composite fracture surface and interfacial adhesion between silk fibre and the matrix. These micrographs suggested less fibre pull out and better interfacial bonding for 40% fibre reinforced composites.
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier BV
Date: 04-2015
Publisher: Elsevier BV
Date: 07-2022
Publisher: Elsevier BV
Date: 07-2022
Publisher: Springer Science and Business Media LLC
Date: 26-06-2012
Publisher: Elsevier BV
Date: 05-2014
Publisher: Wiley
Date: 20-12-2019
DOI: 10.1111/FFE.13182
Publisher: Springer Science and Business Media LLC
Date: 29-07-2017
Publisher: Elsevier BV
Date: 2021
Publisher: MDPI AG
Date: 19-10-2021
DOI: 10.3390/MET11101656
Abstract: This paper investigated the fatigue crack propagation mechanism of CP Ti at various stress litudes (175, 200, 227 MPa). One single crack at 175 MPa and three main cracks via sub-crack coalescence at 227 MPa were found to be responsible for fatigue failure. Crack deflection and crack branching that cause roughness-induced crack closure (RICC) appeared at all studied stress litudes hence, RICC at various stages of crack propagation (100, 300 and 500 µm) could be quantitatively calculated. Noticeably, a lower RICC at higher stress litudes (227 MPa) for fatigue cracks longer than 100 µm was found than for those at 175 MPa. This caused the variation in crack growth rates in the studied conditions.
Publisher: Elsevier BV
Date: 08-2010
Publisher: Elsevier BV
Date: 02-2021
Publisher: Elsevier BV
Date: 12-2020
Publisher: Apple Academic Press
Date: 18-07-2012
DOI: 10.1201/B13117
Publisher: Elsevier BV
Date: 02-2016
Publisher: Elsevier BV
Date: 12-2020
Location: Bangladesh
Start Date: 2015
End Date: 2016
Funder: Department of Education and Training
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