We are pleased to announce the approval of the DFG grant for the new research project “Nonlinear finite element technology for stable and locking-free analysis of large deformation problems”!
In the previous project “Adaptive, deformation-dependent finite element formulations for stable and locking-free analysis of large deformation problems”, existing elements were analyzed to better understand the element behavior in nonlinear regimes and new nonlinear finite elements were developed. The focus was on both nonlinear locking phenomena and artificial instability (hourglassing).
In the follow-up project, questions that have emerged during the first funding period will now be answered and appropriate solutions will be developed. The focus is on material hourglassing, including material anisotropy, as well as a newly discovered geometrical hourglassing phenomenon occuring in inhomogeneous states of deformation. Special attention will be paid to element stability.
