Structures Under Shock and Impact

This book contains the papers presented at the ninth International Conference on Structures Under Shock and Impact. The shock and impact behaviour of structures is a challenging area, not only because of the obvious time-dependent aspects, but also because of the difficulties in specifying the external dynamic loading characteristics for structural designs and hazard assessments and in obtaining the dynamic properties of materials. Thus, it is important to recognise and utilise fully the contributions and understanding emerging from theoretical, numerical and experimental studies on structures, as well as investigations into the material properties under dynamic loading conditions. Featured topics include: impact and blast loading characteristics; material response to high rate loading; missile penetration and explosion; protection of structures from blast tools; behaviour of structural concrete; structural behaviour of composites; interaction between computational and experimental results; energy absorbing issues; structural crashworthiness; structural serviceability under impact loading; and seismic engineering applications.

Table of Contents:
Section 1: Impact and blast loading characteristics Approximation of blast loading and single degree-of-freedom modelling parameters for long span girders; Numerical study of water plume behavior under shallow depth explosion; Rubble pile characterization model; Laboratory simulation of blast loading on building and bridge structures; Numerical analysis of the hydrodynamic ram of a CFRP integral tank; Simplified blast simulation procedure for hazard mitigation planning; Elastodynamic contact in plate-like bodies; Effect of silty-sand compressibility on transferred velocity from impulsive blast loading Section 2: Material response to high rate loading Advances in high strain rate material testing; The behavior of elastomers at high strain rates; Strain rate effect in material testing of bulk adhesive; An investigation of the dynamic behavior of 3-D four direction carbon-fibers/epoxy braid composites at various strain rates; Influence of dynamic effects on the resistance of steel building structures to brittle failures; The effect of braid angle on the dynamic response of 3-D four direction carbon/epoxy braid composites at high strain rates; Explosive shock and laser exposure of metallic and ceramic materials; Numerical modeling of bumps using the stress stages; Explosion-induced damage to oilwell perforating gun carriers Section 3: Missile penetration and explosion Low velocity perforation design of metal plates; Penetration of a coarse sand target by rigid projectiles; The calculation of the depth of penetration for projectiles into rock; Robust prediction of residual velocities and ballistic limits of projectiles for impact on thin aluminium plates; Experimental and numerical investigations on projectile penetration into polypropylene fiber reinforced concrete targets Section 4: Protection of structures from blast loads Design of optimally safe recovery boilers against occurrence and consequences of internal explosions; Development of thin, spray-on liner and composite superliner area supports for damage mitigation in blast- and rockburst-induced rock failure events; Blast protection in military land vehicle programmes: approach, methodology and testing; Blast induced glass hazards: a comparison of design approaches and recent research; Prediction of airblast loads in complex environments using artificial neural networks; Consequences on port facilities of a tanker explosion Section 5: Behaviour of structural concrete Testing and simulation of local damage in a concrete plate by the impact of a hard projectile; Optimization design of a RC slab under impact load using DPSO-based multiple optimal solutions; The principle of crater-formation of a concrete target plate penetrated by a projectile; Dynamic interpretation of brittle fracture; Reactive powder concrete plate response to a flat projectile impact Section 6: Structural behaviour of composites Vacuum infusion of a composite E-glass vinylester laminate for nautical application: experimental response to repeated impacts; Modelling of the bullet perforation of textile targets; Some insights into the impact fatigue damage behaviour in laminated composites; A novel lightweight sandwich panel with substantial resistance to ballistic penetration Section 7: Interaction between computational and experimental results Identification and simulation of the impact characteristics of the viscous mount; Numerical studies on impact tests of a full-size metal storage cask Section 8: Energy absorbing issues Compact energy absorbing cellular structure; Energy absorption of safety nets in building construction Section 9: Structural crashworthiness Materials behaviour and numerical simulation of a turbine blade-off containment analysis; Experimental investigation of the energy absorption capability of bonded crash boxes; Mechanical properties of plain-woven CFRP reinforced by spread fiber tow during and after drop-weight impact Section 10: Structural serviceability under impact loading Structural serviceability under impact and dynamic loading; Application of the island-genetic algorithm to optimal impact resistance design of a RC slab; Dynamic response of an office building loaded by an explosion-generated air wave; Drop impact of a typical portable electronic device; Non-ideal explosive performance in a building structure Section 11: Seismic engineering applications Spectrum-based estimation method for peak structural responses of a SDOF system pounding against rigid structures; A high precision spectrum rectifying technique; Prediction of response spectral parameters for Bhuj earthquake (26th January 2001) using a component attenuation modelling technique; Poundings of seismically isolated buildings during strong earthquakes