COMPLETE DYNAMIC RESPONSE OF RATE-SENSITIVE STRUCTURES,
Abstract
A mathematical model is presented of a pressure loaded rather than an impulsively loaded structural element. As the prototype of a general structure the dynamically loaded thin ring is considered. For a constant pressure pulse, exact and approximate responses are calculated and differ by only a few percent. In the approximate solution the yield stress is taken to be a constant associated with the peak strain rate (which occurs at the instant of load termination). The results suggest that one should be able to determine the complete response of a complex structure with arbitrary load pulse by enforcing an impulse/momentum change condition, while neglecting forces arising owing to deformation, to determine the initial strain rate distribution. The associated yield stress distribution may be calculated and assumed to be constant at each field point during the entire motion. This enormous simplification should bring a wide variety of practical physical problems within the scope of accurate solution via relatively modest effort. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1966
- Accession Number
- AD0643282
Entities
People
- Nicholas Perrone
- Tamim El-kasrawy
Organizations
- The Catholic University of America