Detection And Elimination Of Stress Singularity

A computer-aided design system comprising:

• a processor operatively coupled to a data storage system, the data storage system storing a three-dimensional model;
• and
• a data storage memory operatively coupled to the processor and comprising instructions to configure the processor to:
• detect a potential area of high stress in which an element having a high stress value in the potential area has surrounding elements with a rapid change in stress gradient;
• refine a finite element mesh of the 3D CAD model in at least the potential area of high stress;
• determine that after the refining step the high stress value does not converge;
• alert a user that the potential area of high stress is an area having one or more elements of stress singularity;
• suggest to the user how to eliminate the stress singularity;
• and
• enable the user to modify the design of the 3D CAD model to eliminate the stress singularity.

A non-transitory computer-readable data storage medium comprising instructions causing a computer to:

• detect a potential area of high stress in which an element having a high stress value in the potential area has surrounding elements with a rapid change of stress gradient;
• refine a finite element mesh of the 3D CAD model in at least the potential area of high stress;
• determine that after the refining step the high stress value does not converge;
• alert a user that the potential area of high stress is an area having one or more elements of stress singularity;
• suggest to the user how to eliminate the stress singularity;
• and
• enable the user to modify the design of the 3D CAD model to eliminate the stress singularity.