Nonlinear Response of Laminated Panels under Blast Load. (2017)

• Record Type: Journal Article
• Authors: Kumari, Emarti; Singha, M.K.
• Is Part Of: Procedia engineering. Volume 173(2017)
• Page Start: 539
• Page End: 546
• Publication Date: 2017
• Subjects: Blast load -- finite element method -- nonlinear dynamic response -- composite -- curved panels; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2016.12.086
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: Nonlinear response of laminated composite plates and cylindrical panels subjected to a parabolically distributed blast load is studied here using a shear deformable finite element method. The nonlinear finite element equations of motion are solved in the time domain by an energy and momentum conserving time integration technique. The state-of-stress inside the laminated panels is calculated at each time-step to predict the occurrence of damage using Tsai-Wu quadratic failure criterion. The effects of span-to-thickness ratio, radius-to-span ratio and peak pressure on the nonlinear dynamic response of laminated composite plates and curved panels are investigated.