Abstract
Three rectangular plate bending elements have been developed: E14A, E14B and E16. They have 14 and 16 degrees of freedom and are displacement-based Mindlin plate theory elements. These elements behave well for a wide range of aspect ratios. None of these elements show any sign of the ‘shear locking’ phenomenon for thin plates. They do not have any additional zero energy modes when an appropriate order of integration is applied. The convergence characteristics of E16 proved to be very good—better than E14A and E14B. An explanation of why some of these elements are better than the others is given.
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