The main goal of this research is the performance evaluation sampled moment-resisting steel structure against 3D simulated blast loading. In first stage present research, numerically wave verified by comparing with relevant renowned numerical and experimental previous researches. second stage, sensitivity blast-induced pressure to finite element mesh size surrounding air cube dimensions are inv...

In the present study, a finite element impact model was created and analyzed by commercial FEM code ANSYS ® -AUTODYN then validated drop weight experiment. Moreover, models of single- multilayer panels plain weave as well different weaving architectures were designed with without holes to compare properties. The influence size location hole defect on behavior single-layer Twaron fabric investig...

In order to study the morphology characteristics of PTFE/Al reactive shaped charge jet and chemical reaction during formation, liners with aluminum particle sizes 5 ?m 100 were prepared. The parameters Johnson–Cook constitutive model materials (RMs) obtained through quasi-static compression experiments SHPB (Split Hopkinson Pressure Bar) experiments. X-ray imaging technology was used photograph...

Two stages gas guns are used for various purposes, particularly for mechanical characterization of materials at high rate of deformations. The performance of a two stages gas gun is studied in this work using the theory of the two-stage gas gun proposed by Rajesh, numerical simulation using combined Eulerian/ Lagrangian elements in Autodyna commercial code and experiment using a two stage gas g...

Abstract A representative and most commonly used ballistic target system consisting of a 93W ball Q235 steel plate is investigated for its limit fast calculation engineering model. The basic data on the material projectile was obtained through quasi-static compression tests mechanical properties materials. Using Φ12.7mm gun ten shot v50 method, were carried out with balls positively penetrating...

In the semiconductor industry, hydrogen is used with many other hazardous and dangerous substances flammable, toxic, corrosive properties. order to safely handle them, convenient-to-use gas cabinets are often required. As known well, highly flammable explosive, risk analysis needs use in cabinets. this study, overpressure impact according various cabinet conditions were measured when leaks cabi...