The need of polygonal elements to represent the domain is gaining interest among structural engineers. The objective is to perform static analysis and topology optimization of a given continuum domain using the rational fraction type shape functions of six node hexagonal elements. In this paper, the main focus is to perform the topology optimization of two-dimensional plate structures using Evo...

A frequency domain dynamic analysis is needed to obtain the response of structures constructed on a system of base isolators on flexible soil when subjected to earthquake ground motion. In such systems, the lateral stiffness of the base isolators is so small, compared to the structural stiffness, that in an earthquake attack the fundamental vibration mode dominates the response. With this in mi...

The paper describes efforts that have made to mechanise the requirements engineering process in an industrial avionics domain. Our approach is based on an analysis of both the application domain and the task domain. The paper describes the processes we have used for domain analysis, and the tool we have developed to support mechanisation. We give an initial evaluation of the approach and close ...