Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
511822 | Computers & Structures | 2008 | 12 Pages |
Abstract
Using the concept of a variable repeated load and shakedown theory, a unified technique is proposed for formulating mathematical models for the optimization of frame- and truss-like structures under different loads. Strength, stiffness and stability (for trusses only) constraints are included in non-linear mathematical models of structure volume minimization and load optimization problems. Even though the load is prescribed within certain limits, the mathematical models allow the variational bounds of the displacement (the stiffness of the structure depends on them) to be evaluated in the deformed state. Numerical example concerning calculation of frame structure is presented. The results are valid for small displacements.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
J. Atkočiūnas, D. Merkevičiūtė, A. Venskus,