NEHRP Clearinghouse
- Title
- Stochastic Finite Element Expansion for Random Media.
- File
- PB88213806.pdf
- Author(s)
- Spanos, P. D.; Ghanem, R.
- Source
- National Science Foundation, Washington, DC., March 14, 1988, 43 p.
- Identifying Number(s)
- NCEER-88-0005
- Abstract
- A new method for the solution of problems involving random media is proposed. The medium property is represented by a stochastic process. The method makes use of an orthogonal expansion of the process with a finite set of random variables and leads to a formulation compatible with the finite element method. The usefulness of the method, in terms of accuracy and efficiency, is exemplified by considering a cantilever beam with random rigidity.
- Keywords
- Stochastic processes; Earthquake engineering; Radomi processes; Covariance; Karhuman-Love orthogonal expansion; Cantilever beams