Real-Time Assessment of Fatigue Damage to Structures

Paper No. 78

Real-Time Assessment of Fatigue Damage to Structures. Stephen M. Price. Proceedings of the SEM Spring Conference on Experimental and Applied Mechanics and Experimental/Numerical Mechanics in Electronic Packaging III. Houston, TX. June 1-3, 1998.

In industrial environments, failures of system components can lead to unsafe operation, environmental damage, and significant loss of revenue.  When specific components of the system are critically designed, analysis and instrumentation can be combined to assess operation.  After analyzing the potential strain fields in a structure, strain gages may be installed at key locations to measure dynamic strain during operation or use of the structure.  Fatigue analysis can be performed on the acquired data to determine if failures are likely.  From these data, operational parameters and/or system design can be altered to maintain safe and reliable operation.

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