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SCONES (Stress CONcentration Expert System) software is used to predict stress concentrations. When dimensions and loads are modified it instantaneously updates the display, making the system easy to use. SCONES contains validated and extended data from various sources, including complex interacting features which augments SCONES role. However, the natural progression is to extend the research to the interaction of processes including, for example, surface processes like anodising. These process interactions will dovetail into, and enhance features within the strain life factors. This paper will describe new work which will extend current knowledge in feature interactions and strain life factors and will improve SCONES versatility.

Determination of the so-called stress concentration factor (Kt) is essential for the correct design of components subject to fatigue-inducing loading. The paper introduces methods and software for stress concentration analysis and techniques for structural design optimization based on the redistribution of material to balance stress concentration efforts.