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Your search keyword '"Singh Raman, R.K."' showing total 9 results
Start Over Author "Singh Raman, R.K." Publisher elsevier
9 results on '"Singh Raman, R.K."'

1. List of contributors

Author

Antunes, R.A., primary, Atrens, Andrejs, additional, Choudhary, Lokesh, additional, Chu, P.K., additional, de Oliveira, M.C.L., additional, Durisin, Martin, additional, Imwinkelried, T., additional, Kirkland, Nicholas Travis, additional, Lee, Min-Ho, additional, Lin, Xiao, additional, Loos, Anneke, additional, Narayanan, T.S.N. Sankara, additional, Park, Il-Song, additional, Singh Raman, R.K., additional, Waterman, Jay, additional, Wu, G.S., additional, Yang, Ke, additional, Zheng, Y.F., additional, and Zhou, W.R., additional

Published
2015
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4. Contributor contact details

Author

Raja, V.S., primary, Shoji, T., additional, Lynch, S.P., additional, Dietzel, W., additional, Bala Srinivasan, P., additional, Atrens, A., additional, Chatterjee, U.K., additional, Singh Raman, R.K., additional, Kain, V., additional, Lu, Z., additional, Peng, Q., additional, Rebak, R.B., additional, Bobby Kannan, M., additional, Raja, V.S., additional, Winzer, N., additional, Chattoraj, I., additional, Shukla, P.K., additional, Shaikh, H., additional, Anita, T., additional, Poonguzhali, A., additional, Dayal, R.K., additional, Raj, B., additional, Lim, J.K., additional, Esmacher, M.J., additional, Iannuzzi, M., additional, Wanhill, R.J.H., additional, Byrnes, R.T., additional, Smith, C.L., additional, Andresen, P.L., additional, Ford, F.P., additional, Zheng, W., additional, Elboujdaini, M., additional, and Revie, R.W., additional

Published
2011
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8. Crack growth: Does microstructure play a role?

Author

Jones, R, Singh Raman, R.K., and McMillan, A.J.

Subjects
T1, TA, TL, TJ
Abstract

The experimental data presented in this paper reveals that even if the growth of long cracks in two materials, with different microstructures, have different \ud da/dN\ud versus \ud ΔK\ud curves the corresponding small crack curves can be similar. We also see that long cracks in a large range of steels with different microstructures, chemical compositions, and yield stresses can have similar crack growth rates. The materials science community is challenged to explain these observations. The experimental data also suggests that the threshold term \ud ΔKthr\ud in the Hartman-Schijve variant of the NASGRO crack growth equation appears to have the potential to quantify the way in which small cracks interact with the local microstructure. In this context it is also noted that the variability in the life of operational aircraft is controlled by the probability distribution associated with the size and nature of the material discontinuities in the airframe rather than the probability distribution associated with the scatter in the growth of small cracks with a fixed initial size.

Published
2017

9. Theoretical model for seawater and sea sand concrete-filled circular FRP tubular stub columns under axial compression

Author

Li, Y.L., Teng, J.G., Zhao, X.L., Singh Raman, R.K., Li, Y.L., Teng, J.G., Zhao, X.L., and Singh Raman, R.K.

Abstract

The use of FRP with seawater and sea sand concrete (SWSSC) holds great potential for marine and coastal infrastructure, and concrete-filled FRP tubular columns are among the attractive forms of structural members for such applications. This paper presents a theoretical model for the compressive behaviour of seawater and sea sand concrete-filled circular FRP tubular stub columns. FRP tubes can be manufactured to possess considerable strength and stiffness in the longitudinal direction, so the behaviour of concrete-filled FRP tubes differed substantially from that of concrete columns with an FRP wrap (also referred to as “concrete-filled FRP wraps”) which commonly contains fibres only in the hoop direction. Many theoretical models have been proposed for concrete-filled FRP wraps, but very limited work has been conducted on the theoretical modelling of concrete-filled FRP tubes. In the present study, an existing dilation model for concrete-filled FRP wraps is combined with a biaxial stress analysis of the FRP tube so that the effect of the Poisson’s ratio of the FRP tube is properly accounted for. In order to predict the buckling of the FRP tube, a maximum strain buckling failure criterion is proposed and is shown to be in reasonable agreement with the experimental results. Moreover, the load carried by the FRP tube is studied, and a simplified model is proposed to determine the load shared by the FRP tube during the entire loading process. Finally, a theoretical model for SWSSC-filled FRP tubular columns is proposed, in which the behaviour of both the concrete and the FRP tube as well as their interactions are explicitly modelled (i.e., an analysis-oriented model). The proposed model gives reasonably close predictions of the existing experimental data.

Published
2018
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