The displacement‐based formulation of the method of finite spheres is observed to exhibit volumetric ‘locking’ when incompressible or nearly incompressible deformations are encountered. In this paper, we present a displacement/pressure mixed formulation as a solution to this problem. We analyse the stability and optimality of the formulation for several discretization schemes using numerical inf–sup tests. Issues concerning computational efficiency are also discussed.
No takes yet. Share an insight, caveat, or question.
De et al. (2001) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: