Skip to main content
. Author manuscript; available in PMC: 2021 Jun 15.
Published in final edited form as: Comput Methods Appl Mech Eng. 2020 Apr 18;365:112978. doi: 10.1016/j.cma.2020.112978

Figure 23:

Figure 23:

Volume conservation for the torsion test (Section 4.4) for different choices of elements and numerical Poisson ratio. The DOF range from m = 65 to m = 12,337, and the x axis is on a log scale. Omitting the coarsest discretizations (m = 65), the largest deviations in total volume among all element types used are approximately 11% for the modified case, 93% for the unmodified case, and 61% for the deviatoric case. In fact, in all cases where there was no volumetric stabilization, the change in volume was greater than 5% for all discretizations. Further, the modified cases with volumetric stabilization were the only ones where the error dropped below 1%, and this was achieved for m = 625 DOF.