000			a
999			_c14557 _d14557
003			OSt
005			20210303105124.0
008			210303b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_913555 _aVeeredhi, Lakshmi Shireen Banu
245			_aEffect of Plate Curvature on Blast Response of Structural Steel Plates
250			_aVol,99(3), September
260			_aKolkata _bSpringer _c2018
300			_a463-471p.
520			_a present work an attempt is made, through simulation studies, to determine the effect of plate curvature on the blast response of a door structure made of ASTM A515 grade 50 steel plates. A door structure with dimensions of 5.142 m × 2.56 m × 10 mm having six different radii of curvatures is analyzed which is subjected to blast load. The radii of curvature investigated are infinity (flat plate), 16.63, 10.81, 8.26, 6.61 and 5.56 m. In the present study, a stand-off distance of 11 m is considered for all the cases. Results showed that the door structure with smallest radius of curvature experienced least plastic deformation and yielding when compared to a door with larger radius of curvature with same projected area. From the present Investigation, it is observed that, as the radius of curvature of the plate increases, the deformation mode gradually shifts from indentation mode to flexural mode. The plates with infinity and 16.63 m radius of curvature have undergone flexural mode of deformation and plates with 6.61 and 5.56 m radius of curvature undergo indentation mode of deformation. Whereas, mixed mode of deformation that consists of both flexural and indentation mode of deformations are seen in the plates with radius of curvature 10.81 and 8.26 m. As the radius of curvature of the plate decreases the ability of the plate to mitigate the effect the blast loads increased. It is observed that the plate with smaller radius of curvature deflects most of the blast energy and results in least indentation mode of deformation. The most significant observation made in the present investigation is that the strain energy absorbed by the steel plate gets reduced to 1/3 rd when the radius of curvature is approximately equal to the stand-off distance which could be the critical radius of curvature.
650		0	_94621 _aCivil Engineering
700			_913556 _aRao, N. V. Ramana
773	0		_tJournal of the institution of engineers (India): Series A _x 2250-2149 _dSwitzerland Springer
856			_uhttps://link.springer.com/article/10.1007/s40030-018-0292-9 _yClick Here
942			_2ddc _cAR