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Article
Dynamic Response of a Cracked Composite Beam subjected to moving Load

Author: Nazhad Ahmad Hussein
Journal: Anbar Journal of Engineering Sciences مجلة الأنبار للعلوم الهندسية ISSN: 19979428 Year: 2019 Volume: 7 Issue: 4 Pages: 393-398
Publisher: University of Anbar جامعة الانبار

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Abstract

The forced deflections of simply supported cracked composite beams are investigated when subjectedto moving dynamic load. The crack is modeled as rotational spring and used in the formulationof the composite beam with a moving load in sinusoid wave. The numerical solution issatisfactory compared to the experimental results. The effects of crack depth and crack positionsat different load speed are studied. The results show that the forced deflection increased withincreasing the speed ratio and crack depth.


Article
Study of Multi-Cracked Cantilever Composite Beams Subjected to External Moving Load

Authors: Nazhad Ahmad Husseina --- Sara Mohamad Ahmadb --- Dilshad A. Mohammed
Journal: Anbar Journal of Engineering Sciences مجلة الأنبار للعلوم الهندسية ISSN: 19979428 Year: 2019 Volume: 8 Issue: 1 Pages: 27-34
Publisher: University of Anbar جامعة الانبار

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Abstract

The behaviour of multiple cracked cantilever composite beams is studied when subjected to moving periodic force. In this investigation a new model of multiple cracked composite beams under periodic moving load is solved. Three cracks are considered at different position of the beam for numerical solution. The results from experimental work compared to numerical solution. The multiple cracks are identified easily from the deflection graphs at different force speed. Influences of crack depth at different load speed are investigated

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