A new approach was developed for the evaluation of energy release rate by the virtual crack closure technique in quadratic and linear elements. The generalized method allows arbitrary placement of the side nodes for quadratic elements and thus includes both standard elements, with mid-side nodes, and singularity elements, with quarter-point nodes, as special cases of one general equation. It al...

In this study, a hp-version of Finite Element Method (FEM) was applied for forward modeling in image reconstruction of Electrical Impedance Tomography (EIT). The EIT forward solver is normally based on the conventional Finite Element Method (h-FEM). In h-FEM, the polynomial order (p) of the element shape functions is constant and the element size (h) is decreasing. To have an accurate simulatio...

In Wireless sensor network sensor nodes have a limited battery life and their efficient utilization is a very much importent task. Their are many ways are proposed for efficient utilization of energy.For efficient energy utilization many topologies,protocals are proposed by the help of which we can maximize the battery life. In this paper we propesed a methode in which a correlation is made bet...

The paper presents a parallel direct solver for multi-physics problems. The solver is dedicated for solving problems resulting from adaptive Finite Element Method computations. The concept of finite element is actually replaced by the concept of the node. The computational mesh consists of several nodes, related to element vertices, edges, faces and interiors. The ordering of unknowns in the so...

This paper is concerned with the development of Trefftz p-element for twodimentional piezoelectric materials. Solutions in Stroh formalism for transversely isotropic piezoelectric materials are used for the intra-element displacement and electric potential (DEP) fields together with an independent DEP frame function field along element boundaries. The formulation is based on a modified variatio...

An order-theoretic forest is a countable partial order such that the set of elements larger than any element linearly ordered. It an tree if two have upper-bound. The type branch (a maximal ordered subset) can be linear order. Such generalized infinite trees yield convenient definitions rank-width and modular decomposition graphs. We define algebra based on only four operations generate up to i...

Virtual reality based surgical simulators offer a very elegant approach to enhancing traditional training in endoscopic surgery. In this context a realistic soft tissue model is of central importance. The most accurate procedures for modeling elastic deformations of tissue use the Finite Element Method to solve the governing mechanical equations. Therapeutic interventions (e.g. cutting) require...

In order to address this problem, our algorithm uses the rst element of preorder node sequence to nd the root of tree, and locate the root in the inorder node sequence. Then, in inorder sequence, everything on the left side of the root element is the inorder node sequence of the left subtree and everything on the right side of of the root element is the inorder node sequence of the right tree. ...

A two-dimensional finite element model of a mandibular quadrant was used to examine differences in magnitude of the principal stresses from the placement of three- and four-unit bridges. The area of interest spanned the first premolar to the second molar. Loading conditions were (i) vertical and distributed and (ii) 30 degrees to the vertical and concentrated. The principal stresses were calcul...

The paper presents a parallel direct solver for multi-physics problems. The solver is dedicated for solving problems resulting from adaptive finite element method computations. The concept of finite element is actually replaced by the concept of the node. The computational mesh consists of several nodes, related