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The Application Of Limit Analysis To Shell Structures Using Existing Finite Element Analysis Codes, George G. Myers
The Application Of Limit Analysis To Shell Structures Using Existing Finite Element Analysis Codes, George G. Myers
Retrospective Theses and Dissertations
A ramjet inlet duct structure has been designed using nonlinear structural analysis to allow local plastic deformations which result in structural weight reduction. To establish the feasibility of reduced shell thickness, the Lower-Bound Theorem of limit analysis has been applied using an existing finite element analysis computer code intended for elastic analysis. The results of the analysis were verified by structural testing. Predicted stresses and deflections showed good correlation with measured values up to the point of failure. This work was supported by the U.S. Air Force Aero Propulsion Laboratory, Wright-Patterson Air Force Base, Ohio, under Contract No. F33615-72-C-1366.