THREE-DIMEMSIONAL ANALYSIS USING COMBINED FINITE ELEMENT-BOUNDARY INTEGRAL TECHNIQUES

In structural modeling and optimum design considerations, three-dimensional stress analyses are becoming increasingly important. In this paper, a hybrid technique for the analysis of full three-dimensional stress problems is developed. Using this technique, the finite element and boundary integral stress analysis methods are combined. Solutions to several stress concentration problems are given. Comparisons are given of modeling effort, computer time and accuracy of stress concentration values for finite element, boundary integral and hybrid runs. Presentation of boundary integral models using the MOVIE.BYU graphics package is demonstrated.