Algorithms for the Integration of Inelastic Constitutive Equations Including Rate and Damage.
Final rept. Mar 85-Jan 87,
HUGHES (THOMAS J R) STANFORD CA
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Algorithms for integrating general classes of inelastic constitutive equations are described. The procedures reduce to the classical radial-return algorithm for J sub 2-flow theory and include extensions to isotropic elastic damage and Perzyna-type viscoplasticity. The methodology is applied to the cap model, which is useful for simulating the response of soils and concrete, and a uniquely simple and effective algorithm is developed which corrects shortcomings of previous implementations.
- Soil Mechanics
- Theoretical Mathematics
- Civil Engineering