Sundararajan Natarajan

TL;DR: In this paper, an extension of the recently developed high order complete scaled boundary shape functions to model elasto-static problems in functionally graded materials is presented. And the high order completeness properties of the shape functions are realized through the introduction of bubble-like functions derived from the equilibrium condition of a polygon subjected to body loads.

TL;DR: A recovery type error indicator combined with quadtree decomposition is employed for adaptive mesh refinement and it is observed that, if the gradation in fracture properties is neglected, the material gradient plays a secondary role, with the fracture behaviour being dominated by the orthotropy of the material.

TL;DR: This paper extends the polygonal splines approach to 3 dimensions and construct serendipity shape functions over hexahedra and convex polyhedra by expressing the shape functions using the barycentric coordinates and the local tetrahedral coordinates.

TL;DR: In this paper, a load-controlled iteration scheme within the framework of extended finite element method (XFEM) is proposed to model the semipermeable crack in a piezoelectric material.

TL;DR: In this article, a numerical investigation on the nonlinear flutter oscillations of composite panels on multiple supports (multibay panels) in high supersonic flow is presented.