The Experts below are selected from a list of 459 Experts worldwide ranked by ideXlab platform
Abass Braimah - One of the best experts on this subject based on the ideXlab platform.
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behaviour of steel reinforced polymer srp strengthened rc members under blast loadthis paper is one of a selection of papers in the special issue on blast engineering
Canadian Journal of Civil Engineering, 2009Co-Authors: M Carriere, P J Heffernan, R G Wight, Abass BraimahAbstract:During the past decade, significant research has been carried out on the strengthening of reinforced Concrete (RC) slabs, beams, and columns using externally bonded carbon fibre reinforced polymer (CFRP) sheets. Steel reinforced polymer (SRP) sheets have recently been proposed as an alternative to CFRP to strengthen reinforced Concrete beams. This paper reports experimental and numerical results of RC beams and beam-columns transversely wrapped with SRP and tested under blast load. A total of 10 scaled RC members were tested at a variety of blast wave intensities. Detailed observations are reported and validated against numerical models created in AUTODYN for the unstrengthened RC mem- bers. The SRP wraps were resilient in the near-field blast range and enhanced the ductility of the Concrete likely through enhanced confinement. Member capacity could be increased by the wraps in failure modes dominated by Concrete Crush- ing. AUTODYN appears able to reasonably predict the behaviour of the RC members when loaded by blast.
Hiltunen Erkki - One of the best experts on this subject based on the ideXlab platform.
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Evaluating heat current through Concrete Crush for heat storing application : a preliminary study using polynomial fitting for heat current curves
'Institute of Electrical and Electronics Engineers (IEEE)', 2020Co-Authors: Martinkauppi, Jaana Birgitta, Hiltunen ErkkiAbstract:The purpose of this paper is to study heat current through Concrete Crush as the Crush is considered a possible material for heat storage. The heat current parameter is important for heat storages as it describes how material behaves as temperature changes in its environment. An experimental test is described for obtaining this parameter. Since the resulting data are noisy and have repetitive values, the heat current is evaluated with polynomial fitting.©2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.fi=vertaisarvioitu|en=peerReviewed
Kunitomo Sugiura - One of the best experts on this subject based on the ideXlab platform.
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fem analysis on failure development of group studs shear connector under effects of Concrete strength and stud dimension
Engineering Failure Analysis, 2013Co-Authors: Kunitomo SugiuraAbstract:Abstract Group studs, arranging studs in group, has been applied as shear connectors in steel and Concrete composite structures for over 50 years. Concrete strength and stud dimension are the crucial factors affecting the failure appearance of shear studs in push-out test, which mainly consists of stud shear fracture, stud bending deformation and local Concrete Crush. Since the detailed failure development has rarely been concerned, a parametrical push-out FEM analysis with damage plasticity models on failure development of group studs with effects of Concrete strength and stud dimension was executed. In this study, Concrete compressive strength of 30 MPa, 40 MPa and 50 MPa, shank diameters including 13 mm, 16 mm, 19 mm and 22 mm and stud heights including 80 mm and 100 mm were the parameters. In general, it was found that when under effect of Concrete strength, shear stiffness of stud with large shank diameter performed more stable while its shear strength may be influenced more apparently. Meanwhile, the analyzed Concrete damage, stiffness degradation and ultimate deformation of stud were discussed as well. The failure development of push-out model was reflected by the development of equivalent stud bending arm in terms of shear transfer between steel and Concrete through studs, which experienced three steps due to the degradations of Concrete and stud modulus. It also shows that models with lower Concrete compressive strength or more flexible stud in combination with high Concrete strength can lead to relatively obvious stud bending deformation.
M Carriere - One of the best experts on this subject based on the ideXlab platform.
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behaviour of steel reinforced polymer srp strengthened rc members under blast loadthis paper is one of a selection of papers in the special issue on blast engineering
Canadian Journal of Civil Engineering, 2009Co-Authors: M Carriere, P J Heffernan, R G Wight, Abass BraimahAbstract:During the past decade, significant research has been carried out on the strengthening of reinforced Concrete (RC) slabs, beams, and columns using externally bonded carbon fibre reinforced polymer (CFRP) sheets. Steel reinforced polymer (SRP) sheets have recently been proposed as an alternative to CFRP to strengthen reinforced Concrete beams. This paper reports experimental and numerical results of RC beams and beam-columns transversely wrapped with SRP and tested under blast load. A total of 10 scaled RC members were tested at a variety of blast wave intensities. Detailed observations are reported and validated against numerical models created in AUTODYN for the unstrengthened RC mem- bers. The SRP wraps were resilient in the near-field blast range and enhanced the ductility of the Concrete likely through enhanced confinement. Member capacity could be increased by the wraps in failure modes dominated by Concrete Crush- ing. AUTODYN appears able to reasonably predict the behaviour of the RC members when loaded by blast.
Martinkauppi, Jaana Birgitta - One of the best experts on this subject based on the ideXlab platform.
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Evaluating heat current through Concrete Crush for heat storing application : a preliminary study using polynomial fitting for heat current curves
'Institute of Electrical and Electronics Engineers (IEEE)', 2020Co-Authors: Martinkauppi, Jaana Birgitta, Hiltunen ErkkiAbstract:The purpose of this paper is to study heat current through Concrete Crush as the Crush is considered a possible material for heat storage. The heat current parameter is important for heat storages as it describes how material behaves as temperature changes in its environment. An experimental test is described for obtaining this parameter. Since the resulting data are noisy and have repetitive values, the heat current is evaluated with polynomial fitting.©2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.fi=vertaisarvioitu|en=peerReviewed