Large deflection elastic-plastic dynamic response of stiffened shells of revolution
Technical Report
·
OSTI ID:4308492
The formulation and check out problems for a computer code DYNAPLAS, which analyzes the large deflection elastic-plastic dynamic response of stiffened shells of revolution are given. The formulation for spacial discretization is by the finite element method with finite differences being used for the evaluation of the pseudo forces due to material and geometric nonlinearities. Time integration is by the Houbolt method or central differences. The stiffeners may be due to concentrated or distributed eccentric rings and spring supports at arbitrary angles around the circumference of the elements. Check out problems include the comparison of solutions from DYNAPLAS with experimental and other computer solutions for rings and conical and cylindrical shells. A hypothetical submarine including stiffeners and missile tube is studied under a combination of hydrostatic and dynamically applied asymmetrical pressure loadings. (auth)
- Research Organization:
- Texas Agricultural and Mechanical Univ., College Station (USA). Dept. of Aerospace Engineering; Sandia Labs., Albuquerque, N.Mex. (USA)
- Sponsoring Organization:
- US - Atomic Energy Commission
- NSA Number:
- NSA-30-003051
- OSTI ID:
- 4308492
- Report Number(s):
- SLA--73-7049
- Country of Publication:
- United States
- Language:
- English
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