Mechanical Engineering Faculty Research

Title

Dynamic Pulse Buckling of Single Curvature Composite Shells under External Blast

Document Type

Article

Publication Date

Spring 3-2012

Abstract

Dynamic pulse buckling of a single curvature composite shell under external pressure was examined using Lagrange's equation of motion and the Budiansky–Roth criterion. The predicted transient shell response compared very well with results from ABAQUS Implicit, and the predicted buckling loads also agreed with experiments on steel arches. Load duration determined whether the buckling was impulsive, dynamic or quasi-dynamic. Thicker composite shells were more likely to fail by first-ply failure rather than buckling. It was shown that the composite lay-up could be adjusted to increase the buckling resistance of the shell.

Publication Title

Thin-Walled Structures

Volume

52

Issue

1

First Page

149

Last Page

157