July 1989.

The spatial variation of seismic ground motions denotes the differences in the seismic time histories at various locations on the ground surface. This text focuses on the spatial variability of the motions that is caused by the propagation of the waveforms from the earthquake source through the earth strata to the ground surface, and it brings toge

The 6th meeting sponsored by IFIP Working Group 7.5, on reliability and optimization of structural systems, took place in September 1994 in Assisi, Italy. This book contains the papers presented at the working conference including topics such as reliability of special structures, fatigue, failure modes and time-variant systems relibility.

This volume of proceedings consists of invited papers on the following and related subject areas: Composite Materials; Experimental Methods in Stress Analysis; Fracture Mechanics; Structural Stability; Non-Linear Behaviour of Materials and Structures; Plasticity; Numerical Methods; Structural Dynamics.