Figure 4 - uploaded by Victor A. Paludetto Magri
Content may be subject to copyright.
Sparsity pattern plots of the test matrices tripod3239k, eiffel9213k, and guenda1446k, from left to right.
Source publication
The numerical simulation of structural mechanics applications via finite elements usually requires the solution of large-size and ill-conditioned linear systems, especially when accurate results are sought for derived variables interpolated with lower order functions, like stress or deformation fields. Such task represents the most time-consuming k...
Context in source publication
Context 1
... this reason, we select a smaller portion of test cases from Table 1 that are representative of different sources of ill-conditioning for structural problems: tripod3239k (T1) for materials close to the incom- pressible limit (IM); eiffel9213k (T2) for loosely constrained bodies (LC), and guenda1446k (T3) for multiple materials (MM) and meshes with highly distorted elements (DE). The sparsity pattern of the above matrices is shown in Figure 4. Then, we run a sensitivity analysis on aSP-AMG by testing dif-ferent setup configurations starting from a default configuration. ...
Similar publications
We consider a second-order, elliptic partial differential equation (PDE) discretized by the Hybrid High-Order (HHO) method. HHO is a polyhedral method that handles arbitrary polynomial orders, and for which globally coupled unknowns are located at faces. To efficiently solve the linear system arising after static condensation, this work proposes no...
