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The simulation of the mechanical response of shell structures is of great interest in engineering. Nevertheless, creating simulation software is an error prone task, which needs reliable tests to identify code faults. The aim of this paper is to propose a code verification procedure for shell analysis using the method of manufactured solutions. We apply order of accurecy tests, where the reference solutions are constructed with the method of manufactured solutions. A set of five verification examples is presented. We have chosen the first example such that the numerical error arises only because of round-off errors. The second and the third example consider either a general stress state or a general geometry. The fourth example considers both a general geometry and a general stress state. We show convergence orders for a Matlab code which implements high order finite elements for a shell model based on the Reissner-Mindlin kinematics. Furthermore, the process of manufactured solution generation is discussed.

CODE VERIFICATION IN SHELL ANALYSIS BY THE METHOD OF MANUFACTURED SOLUTIONS