This book contains most of the papers presented at the Fifth International Conference on Structures Under Shock and Impact (SUSI 98), held in Thessaloniki, Greece, June 24-26, 1998 The fifth in a series of successful conferences on the response of structures to explosive shocks or high- and low-velocity impact, SUSI 98 included papers from over 100 experts from 25 different countries, who presented their latest work on in the fields of blast loading of structures, penetration mechanics, collision mechanics and the high-speed straining of materials. The 70 papers included reflect a broad range of applications and are divided under the following Structures under Blast and Explosive Shock, Buried Structures under Explosions, Structural Crashworthiness and Energy Absorbing Systems, Dynamic Behaviour of Structures, Full and Scale-model Testing, Interaction between Analytical and Experimental Research, Seismic engineering applications, Material Response to High Rate Loading, Behaviour of Steel and Composite Structures, and Behaviour of Concrete Material and Structures.