Structures Under Shock and Impact: 5th

KEYNOTE ADDRESSES Blast mitigation technologies: developments and numerical considerations for behavior assessment and design; A geometric approach for dynamic buckling of autonomous lumped mass systems under impact. SECTION 1: STRUCTURES UNDER BLAST AND EXPLOSIVE SHOCK Risk analysis of industrial structures due to chemical explosions; Shock wave load of window glass plate structure and hypothesis of its failure; New architectural forms to reduce the effects of blast waves and fragments on structures; Blast-resistant structural steel connections. SECTION 2: BURIED STRUCTURES UNDER EXPLOSIONS Trenching by explosives nearby an existing pipeline: charge size charts; Strength analysis of buried pipes under explosive loads; Determination of buried structure loads due to blast explosions. SECTION 3: STRUCTURAL CRASHWORTHINESS AND ENERGY ABSORBING SYSTEMS Reusable roadside impact attenuation devices; Impact of ice loads on pile structures and deformation; Effects of cutouts on static and dynamic behaviour of square aluminium extrusions; Crushing of square aluminium extrusions with aluminium foam filler - numerical analyses; The effect of induced imperfections on the formation of the first lobe of symmetric progressive buckling of thin-walled square tubes; Crashworthiness of foam-cored sandwich panels with GRP inserts. SECTION 4: DYNAMIC BEHAVIOUR OF STRUCTURES Developments in the prediction of dynamic collapse; Testing and analysis of elastic-plastic pinned beams under impulsive loading; Stress wave effects on the dynamic axial buckling of cylindrical shells under impact; Dynamic load factor in composite highway bridges; Effects of bulk liquid on the dynamic characteristics of a thin walled cylindrical tank by finite element analysis and experimental modal analysis; Numerical analysis of damped oscillations using modified finite integral method. SECTION 5: FULL AND SCALE-MODEL TESTING Testing and simulation of manufacture of metal machine components using exposive welding; Development and applications of a new pulse pressure loading test rig; Calibration of piezoelectric pressure and acceleration transducers; Development of a test facility to simulate pyroshock environments in laboratory. SECTION 6: INTERACTION BETWEEN ANALYTICAL AND EXPERIMENTAL RESEARCH Target strength effects on the predicted threshold velocity for hemi- and ogival-nose penetrators perforating finite aluminium targets; Vibrations of viscoplastic plates under impact load; Investigation of the buckling of elastic composite rings under internal blast loading; EBlast - an emergency blast system expert; Orbital debris impacts against spacecraft multiple shields: comparison of hypervelocity experiments and hydrocode simulations; Render-safe impact dynamics of the M557 fuze; Blast and foreign object damage to plate structures using testing and simulations. SECTION 7: SEISMIC ENGINEERING APPLICATIONS Impact of neighbour building parts in case of earthquake; Seismic response of two adjacent non-symmetric multistory buildings; The seismic performance of precast columns using high strength concrete and post-inserted main reinforcement; Calibration of a numerical model for the simulation of masonry under earthquake loading; Extended and localized vibration modes of groups of modular buildings excited by ground motions or blasts. SECTION 8: MATERIAL RESPONSE TO HIGH RATE LOADING - 8.1 COMPOSITE LAMINATES Micromechanics based modeling of damage in composites under high velocity impact - a review; Underwater shock wave loading on wood. 8.2 BRITTLE MATERIALS RESPONSE - Modeling of shock and impact behaviours of aluminium oxide; A test for the rate effect on concrete fracture energy; Effects of strain rate on concrete strength subjected to impact load - Dynamic compressive strength task by Split Hopkinson pressure bar method; Dynamic strain softening of concrete in compression under rapid loading; Hard impact testing of confined concrete cylinders; Issues in the numerical simulation of strain-rate and pressure sensitive cementitious granular materials; Advances for modelling of geological materials. 8.3 DEFORMATION AND FRACTURE UNDER IMPACT LOADING - Scaling issues in dynamic fragmentation; Impact effect due to pavement irregularities on the dynamic response of bridges; Testing with the torsional split Hopkinson bar at strain rates above 10,000 1/s; The role of complex microstructures on high rate loading response; On predicting and modelling material under impact loading; On the use of the symmetric Taylor test to evaluate dynamic ductile compression fracture properties of metals; Numerical simulation of composite structures under impact. 8.4 SHOCK WAVE PHENOMENA - ALEGRA - code validation: experiments and simulations; Behaviour of a quartzite submitted to a spherical divergent shock-wave: experiments and modelling; The influence of the crack tip plastic zone strain hardening on the metal High Cycle Fatigue behaviour; A strain history dependent model for concrete; High speed metal forming of circular disks and cylindrical tubes in a liquid shock tube. SECTION 9: BEHAVIOUR OF STEEL AND COMPOSITE STRUCTURES Ballistic impact on ceramic/composite armours; An experimental set-up used in ballistic penetration; The residual life of battle damaged bridges. SECTION 10: BEHAVIOUR OF CONCRETE MATERIAL AND STRUCTURES Testing and evaluation of out-of-plane strength of unreinforced masonry infills; Dynamic behaviour of prestressed concrete beams under rapid speed loading; 3D dynamic analysis and computer graphics application to impact failure simulation for reinforced concrete slabs; Experimental studies on the inelastic behaviour of reinforced concrete panels under high-speed loading: effects of dynamic loading; Experimental studies on the inelastic behaviour of reinforced concrete panels under high-speed loading: effects of rebar ratio and lap splices; On the concrete material response to explosive loading - numerical simulations; Validation of a viscodamage model for the dynamic behaviour of concrete; Computed redial stresses in a concrete target penetrated by a steel projectile; Modern geopenetrators and relevant revision of concrete penetration models; Impulsive loading on reinforced concrete slabs - modelling considerations.