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Corner y-displacement for different number of solid DOF for the Cook’s membrane benchmark (Section 4.2) for different choices of elements and numerical Poisson ratios. The solid DOF range from m = 25 to 4225. Notice that each row has the same extents. If νstab is close to , low order elements produce volumetric locking, and higher order elements are needed for convergence at reasonable numbers of DOF.
