With the increase in terrorist attacks recent years, effects of explosions on building become highly topical. In this regard, paper deals with analysis blast loaded steel structures. When a structure is analysed, as known, two major design issues and scientific challenges have to be approached solved. The first issue derives from description input dynamic load (time-pressure wave), being dependent type explosion explosive, while second related actual response under impact. As such, real...

As a blasting agent in the and mining engineering, has been using one of so called new generation explosives which offer greater flexibility their range application, such explosive is ANFO. It type consists an oxidiser fuel (ammonium nitrate oil). One ANFO are industrially made Slovakia POLONIT. The mixture ammonium nitrate, methyl esters higher fatty acids, vegetable oil red dye. paper deals with analysis structure subjected to blast load created by explosion POLONIT charge. First part...

Blast events and scenarios, as known, represent extreme phenomena that may result in catastrophic consequences, both for humans structures. Accordingly, engineering applications, the reliable description of expected blast waves is a crucial step overall design process. Compared to ideal theoretical formulations, however, real explosive can be strongly sensitive multitude parameters first all basic features (size, type, shape, etc.) charge. In this regard, several advanced computer codes used...

The paper deals with the analysis of steel beams subjected to blast load approximated as a one degree system freedom (SDOF). It requires knowing parameters pressure wave, its effect on structure and tools for solution dynamic analysis. wave is estimated linear decay exponential using positive negative phase. results SDOF model are compared corresponding experimental accelerations strain time-histories. There described such structure.

The increasing number of terrorist attacks brings the need to research on blast resistance buildings and transportation systems. Most these are lastly concentrated so called "soft targets" as railways stations, airports, bus shopping centers, etc. In them, high vulnerability is frequently given by fenestrations or novel glass façade systems in general. this regard, paper focused analysis dynamic behavior loaded glazing windows. Given a reference specimen geometry wood plastic frame...

When the over pressure of a blast wave is calculated and its effects on valuated objects are set, many approximations used.Basic relationships, used to calculate maximum overpressure, safety distances building damage, created for industrial accidents or where explosives munitions stored.This method invalid in public spaces.More than 95% all terrorist attacks carried out using ANFO (ammonium nitrate -fuel oil) three different variants with oil, ammonium oil aluminium powder trinitrotoluene...

The large use of glass in buildings, and especially the presence fenestrations facade systems, represents a potential critical issue for people safety. brittle nature (with limited elastic deformation resistance) is often enforced by its combination several secondary components, whose reciprocal interaction damage should be properly assessed. In case windows, accordingly, special care spent members but also framing system possible adhesive or mechanical connections. This study aims at...

Problems of fatigue life prediction materials and structures are discussed in the paper. Service loading is assumed as a continuous process with possible discontinuous events, which caused by various operating conditions. The damage material due to cumulative degradation process. damaging then represented either rain-flow matrices or function derived using some hypothesis failure criterion. Presented theoretical procedure enables very effective estimation service and/or reliable evaluation...

of this ADAP Special Issue volume is to provide an overview on the current trends and recent advancements in terms design analysis, including experiments modelling, protective structures.From a structural point view, such definition includes multiple loading boundary conditions that designers should be properly accounted when ensuring appropriate safety levels people.In fact, structures facilities are expected optimally perform their function under severe loads, even associated with mostly...

More than 95 % of all the terrorist attacks are carried out using ANFO explosives. The explosives made from ammonium nitrate and fuel oil. They can be in three different variants (ammonium with oil, oil aluminium powder or TNT). This paper describes analysis field test results types. efficacy industrially homemade is compared their possible usage for treatment damage critical infrastructure elements described.

With the increase of terrorist attacks it is necessary to explore option increasing strength structures against blast wave resulted from explosion an improvised explosive device. In our research we have focused on recyclable materials that could provide such protection and their comparison with other known materials. We present a FEM analysis wall strengthened different type conclusion show economical ecological used

The presented paper is focused on the practical aspects of retrofit technique used for blast protection buildings. It presents summary various techniques.

Among the priorities of Slovak Republic we consider protection elements critical infrastructure, indispensably including transport which has to be constantly improve and modernize. Researching these elements, part researchers is focusing on ways protect assets from blast effects. An explosion can't solely caused due a terrorist attack or other violent crime. Most frequent causes include electrical short circuits, gas pipeline disturbances, vehicle crashes, can cause transportation collapse...

The standard windows can be enhanced with safety foil. This types of foils are usually used for car windows. paper shows how the composite system created from glass plate and foil improve mechanical resistance. main task is to determinate affecting parameters impact or dynamic various methods showed in paper. All results based on experimental investigation load tests.

The purpose of the paper is to investigate influence geometry charges on propagation blast waves.Various shape (cylinder, sphere, irregular shape) were used in field tests.The main type explosive, homemade ANFO (Ammonium nitrate + fuel oil), was as most common explosives improvised explosive devices terrorist attacks.Characteristics and industrially made are different.There comparing various types produced wave investigated compared.

The development of a fire in large-space section differs significantly from the small section. In objects, to design structures under load often proceeds through performance-based approach. Advanced methods can be used all parts predicting scatter temperature field, calculating heat transfer structure and assessing mechanical behaviour or its part load. prediction gas compartment is crucial for design. paper focused on selection different scenarios building. aim provide background structural...

Abstract The goal of this work was to invent a high energy absorbing composite material. This needs be able attach on the building's surfaces and increase blast-resistance. In innovation, test samples were reinforced with aramidfiber, glass fiber carbon tested by Charpy pendulum impact testing machine. During tests, aramid composites showed good resistance absorption against load.

At the present time of political and war conflicts between countries, more attention is focused on protection important structures, being part critical infrastructure, such as buildings energy importance, government or military bases. Regardless type industry area, primarily, needed to be protected. For this reason, paper determination resistance selected structural elements creating system against effects blast from explosion, including terrorist attack. The has need analysing behaviour...

Abstract In the current century, building protection is very important in face of terrorist attacks. The old buildings Europe are not sufficiently resilient to loads produced by blasts. We still do fully understand effects different explosives on and human bodies. [1–3] Computing blast from that traditional material selection rules for this type impact load diverse. Historical cannot be protected simply new walls fences. New ways need found improve a building’s resistance blast. It requires...