Abstract
This paper describes a trial of design education using CAE on stress concentration problems, in which GUI and automatic mesh generation capabilities of CAE software such as "NASTRAN for Windows" have great power for students to comprehend mechanics of material and to be interested in design engineering. In CAE approach, inaccuracy of values at stress concentrated parts has been discussed and improved by some researchers. Here, the author proposes the idea, called "method of extrapolation of mesh size to zero", and evaluates its adaptability and limitation.
