Boundary Methods: Elements, Contours, and Nodes by Subrata Mukherjee

By Subrata Mukherjee

------------------Description-------------------- Boundary tools: components, Contours, and Nodes offers the result of state-of-the-art study in boundary-based mesh-free tools. those tools mix the dimensionality benefit of the boundary elemen

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Extra resources for Boundary Methods: Elements, Contours, and Nodes

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Other examples of such work are [49, 148, 1]; as well as [147, 149] for dynamic analysis of MEMS. The focus of this section is the BEM analysis of the electric field exterior to very thin conducting plates. A convenient way to model such a problem is to assume plates with vanishing thickness and solve for the sum of the charges on the upper and lower surfaces of each plate [61]. The standard BIE with a weakly singular kernel is used here and this approach works well for determining, for example, the capacitance of a parallel plate capacitor.

Uniqueness of solutions to (N ) the integral formulations implies that the operators (Iij − Dij ) and Uij have continuous inverses [172]. Now use Lemma 1. 2 CHAPTER 2. ERROR ESTIMATION Problem 2 : Traction Boundary Conditions Solve the Navier-Cauchy equations: (λ + µ)∇(∇ · u) + µ∇2 u = 0 in B subject to the boundary conditions: t = g on ∂B where the tractions satisfy the consistency conditions of static equilibrium: t ds = 0 ∂B (r × t) ds = 0 ∂B It is known that the solution to the above problem exists, and is unique up to a rigid body motion (Fung [46]).

At the tip of a wedge - see, for example, Zhang and Mukherjee [183]). The discussion in the rest of this book is limited to the class of problems, referred to as the admissible class, whose exact solutions satisfy conditions (i - iv). 39). 1, for collocation at an irregular surface point on a 3-D body [93]. It has recently been proved in Mukherjee and Mukherjee [111], however, that interpolation functions used in the boundary contour method (BCM - see, for example, Mukherjee et al. [109], Mukherjee and Mukherjee [99]) satisfy these conditions a priori.

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