Low Velocity Impact Response of Laminated CompositeTruncated Sandwich Conical Shells with Various BoundaryConditions Using Complete Model and GDQ Method

In this paper, the dynamic analysis of the composite sandwich truncated conical shells (STCS) with variousboundary conditions subjected to the low velocity impact was studied analytically, based on the higher ordersandwich panel theory. The impact was assumed to occur normally over the top face-sheet, and the contactforce history was predicted using two solution models of the motion which were derived based on Hamilton’sprinciple by considering the displacement continuity conditions between the layers⸳ In order to obtain thecontact force and the displacement histories, the differential quadrature method (DQM) was used. In thisinvestigation, the effects of different parameters such as the number of layers of the face sheets, the boundaryconditions, the semi vertex angle of the cone, and the impact velocity of the impactor on the impact responseof the complete model were studied.

کلیدواژه ها:

Low velocity impact ، STCS ، DQM ، Complete model