抄録
Estimation of uncertainties is one of the important issues in civil engineering problems recently. K-L (Karhunen-Loeve) expansion is known to represent stochastic field and used in Spectral Stochastic FEM. K-L expansion has a close relation to the theory of generalized inverse matrix. The new method with K-L expansion is proposed for inverse analysis of stochastic field. In the method, the generalized inverse matrix is applied to stochastic field and extended to the case with apriori information on another field which has a relation with the field of unknown parameter.