This paper presents results of metallographic examination a thick-wall spherical shell from uranium alloyed with iron and germanium. is recovered after low-level explosive loading. Light microscopy, hardness measurement, scanning electron microscopy X-Ray diffraction study were used to investigate the meridional section test as this most completely exhibits whole variety structural features ass...

In many studies, the alternative load path method (APM) has been used for progressive collapse analysis. In this method, one or several columns of the building are removed and the building response is investigated. This method ignores the initial local failure cause of building and this can affect the structural response. Investigation of ignoring the initial local failure cause of steel braced...

The purpose of this study was to investigate acute neuromuscular and endocrine responses and recovery to a single session of combined endurance and strength loading using 2 loading orders. Forty-two men were demographically matched to perform a single session of combined endurance + strength (E + S) or strength + endurance (S + E) loading. The strength loading was conducted on a leg press and i...

This paper is concerned with determining the minimum stand-off distance required to prevent column failures in reinforced concrete framed buildings. This is of interest because column failures can initiate progressive collapse, resulting in mass casualties. A technique is developed to determine the critical range at which failure will occur for a given weight of explosives and thus provide a sa...

In situ measurements of the sizes and concentrations of dust particles generated by the detonation of high explosives in clay soil near Leesville, La., sandy clay soil near Huntsville, Ala., and sandy soils near Orogrande, N.M. are reported. Measurements were generally made within 1 m of the surface (in one case 10 m) at distances ranging from 10 to approximately 50 m from the detonation point ...

Protection of critical infrastructure in an urban environment is a challenging task, specifically against the vehicle bourne improvised explosive device threat. To design to withstand this evolving threat, novel solutions and advanced materials need be developed. One such material interest are auxetics. This study experimentally analysed mitigation blast response auxetic re-entrant honeycomb st...

Blast wave overpressure has been associated with varying levels of traumatic brain injury in soldiers exposed to blast loading. In realistic blast loading scenarios, the mechanisms of primary blast injury are not well known due to the complex interactions of the blast wave with the human body, and the high acceleration experienced over very short time durations. The purpose of this study was to...

By a improved front light-source framing photography technique and a simple fragments soft recovered method, the expansion and fracture behaviour of the AISI 1045 steel cylinders loaded by three different brisance explosives have been studied . Cylinders were heat treated-normalized and quenched and tempered. Experimental results show that the more intensive of the loading ,the stronger capabil...

In this study, the tensile and shear strengths of aluminum 6061-differently grooved stainless steel 304 explosive clads are predicted using deep learning algorithms, namely conventional neural network (CNN), (DNN), recurrent (RNN). The cladding process parameters, such as loading ratio (mass explosive/mass flyer plate, R: 0.6–1.0), standoff distance, D (5–9 mm), preset angle, A (0–10°), groove ...