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Characterizing the Cyclic Behavior of Stiffened SPSWs
O. Haddad,N.H. Ramli Sulong,Z. Ibrahim 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.4
To enhance the behavior of steel plate shear walls, stiffeners are attached on the infill plate. The various researches on the stiffened Steel Plate Shear Walls (SPSWs) with Low Yield Point (LYP) infill steel plate have approved excellent capacity of this system. In those studies, the researcher focused on the specific type on stiffeners and in some cases, different results was reported. To cover different aspects, to provide comprehensive necessary data for structure designers and, to study the post-buckling and performance factors, this research is conducted. Using the validated Finite Element (FE) models with experimental test results, an analytical study of a single story SPSWs conducted to determine the influence of the selected parameters on the strength, stiffness, energy absorption and seismic performance factors. The variant parameters include the stiffeners pattern, stiffeners thickness, one-side or double-sides stiffeners and the slenderness of the stiffened infill plates. The results showed that cross-stiffened pattern is preferable in the one-side stiffening method while, diagonal pattern in double-side shape. Finally, the value of seismic performance factors is proposed for stiffened SPSWs.
Measurements of Inelastic Neutron Scattering at 96 MeV from Carbon, Iron, Yttriumand Lead
A. Ohrn,C. Gustavsson,M. Blann,V. Blideanu,J. Blomgren,S. Chiba,H. Duarte,F. Haddad,C. Kalbach,J. Klug,A. Koning,C. Le brun,C. Lebrun,F. -R. Lecolley,X. Ledoux,N. Marie-noury,P. Mermod,L. Nilsson,M. O 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
Inelastic neutron scattering for ^(12)C, ^(56)Fe, ^(89)Y and ^(208)Pb have been measured at 96 MeV at the The Svedberg Laboratory in Uppsala and double-differential cross sections are reported. Data cover an excitation energy range of 0-45 MeV and the angular intervals are 28 - 58˚ for ^(12)C, 26 - 65˚ for ^(56)Fe and 26 - 52˚ for ^(89)Y and ^(208)Pb. In this experiment, neutron detection is based on conversion to protons in an active scintillator converter. An analysis technique in which the neutron spectra have been obtained through a folding procedure using the response of the detector system has been used. The results are compared to and are in reasonable agreement with several model predictions and with inelastic neutron scattering data at 65 MeV from University of California, Davis, USA.