شماره ركورد كنفرانس :
4561
عنوان مقاله :
Experimental study on Dynamic Response of grid cylindrical composite structures under high velocity Impact
Author/Authors :
M Hedayatian Impact Research Laboratory - Center of Excellence in Experimental Solid Mechanics and Dynamics - School of Mechanical Engineering - University of Tarbiat Modares, Tehran , GH. H Liaghat Impact Research Laboratory - Center of Excellence in Experimental Solid Mechanics and Dynamics - School of Mechanical Engineering - University of Tarbiat Modares, Tehran , GH. H Rahimi Impact Research Laboratory - Center of Excellence in Experimental Solid Mechanics and Dynamics - School of Mechanical Engineering - University of Tarbiat Modares, Tehran , M Khoshsorur Impact Research Laboratory - Center of Excellence in Experimental Solid Mechanics and Dynamics - School of Mechanical Engineering - University of Tarbiat Modares, Tehran , R Zamani Impact Research Laboratory - Center of Excellence in Experimental Solid Mechanics and Dynamics - School of Mechanical Engineering - University of Tarbiat Modares, Tehran
كليدواژه :
grid Composites , Damage , Delamination , Failure , Impact , cellular shape
عنوان كنفرانس :
The Bi-Annual International Conference on Experimental Solid Mechanics and Dynamics ۲۰۱۴
چكيده لاتين :
Grid cylindrical composite structures are being increasingly used in aerospace, aircraft and defense industries due to their attractive properties in strength and stiffness to weight ratios. The material examined in this research is manufactured by the filament winding process with [±65] 12 stacking sequence lay-up, all the ribs are made of continuous and unidirectional fibers so they are intrinsically stiff and strong. Gas gun available at impact laboratory of Tarbiat Modares University has been used for doing ballistic tests. In the present research the dynamic response and damage of grid cylindrical composite structures subjected to high velocity lateral impact loading are experimentally investigated. This study presents the effects of ribs on residual velocity of projectile and overall damage area. General results show that presence of ribs reduces the overall damage area. In fact, discrete ribs prevent spread cracks from one cell to it’s adjacent cells.
