Abstract
This paper shows usage of mixed element in Free Mesh Method(FMM). The original formulation of FMM has a disadvantage of low accuracy because of its limitation of the available element. Some studies for accurate FMM have been done, but they add other difficulties in data handling. In this study, a mixed element is investigated and it is found to have some desirable features, such that no additional nodes are required, all data are defined on the original node locations, and the additional cost of calculation is reasonably small. Some numerical examples are also demonstrated.
