Analysis of aluminum-wood composite panels under high-velocity impact
Introduction Aluminum-wood composite panels are hybrid materials that combine the high strength and lightweight characteristics of aluminum with the natural energy absorption and aesthetic qualities of wood. These materials are increasingly used in sectors such as construction, transportation, and protective structures where both structural performance and impact resistance are critical. One area of growing interest […]
Fire and bending analysis of hollow-core concrete slab-DCT method
1. Introduction Hollow-core concrete slabs (also called precast prestressed hollow-core slabs) are widely used in building construction for floor and roof systems due to their high structural efficiency, cost-effectiveness, and speed of installation. These slabs are characterized by continuous voids (or cores) running through their length, reducing self-weight while maintaining strength. However, their behavior under […]
Analysis of the Seismic Behavior of Semirigid Steel Frame with X-Shaped Brace
Introduction Steel frame structures are widely used in modern construction due to their high strength, ductility, and adaptability to various architectural designs. Traditionally, these frames are modeled as either rigid or pinned; however, real-world behavior often falls between these extremes, hence the term “semirigid connections.” These semirigid joints exhibit partial moment resistance and rotational flexibility, which significantly […]
Cyclic Loading Analysis of an Open-Leg Steel Beam-Column Joints
Introduction to Cyclic Loading Analysis of an Open-Leg Steel Column Cyclic loading analysis refers to the study of a structure’s behavior when subjected to repeated or fluctuating loads over time. This kind of analysis is particularly important for steel structures, which may experience dynamic or seismic events, wind loads, vehicle vibrations, or machinery-induced forces. One […]
Cyclic loading analysis of a steel beam-column joint with a welded steel angle
Introduction to Cyclic Loading Analysis of Steel Beam-Column Joints with Welded Steel Angles In structural engineering, beam-column joints play a critical role in transferring forces and ensuring stability within steel frame structures. When subjected to cyclic loading, such as those experienced during earthquakes or wind loads, these joints must withstand repeated stress reversals without significant […]
Numerical analysis of the CFRP blanket effect on reducing the deformation of pipelines in soil exposed to the Coupled Eulerian-Lagrangian subsurface explosion
Introduction Pipelines are critical infrastructures for the transportation of oil, gas, and other essential resources. Among these, API 5L X65 grade steel pipelines are commonly used due to their strength and cost-efficiency. However, pipelines buried in soil are vulnerable to extreme events such as subsurface explosions, which may result from accidental or intentional detonations. These […]
Arrowhead’s impact on the human skull , Weapon and trauma in the Bronze Age
Introduction: Weapons and Trauma in the Bronze Age The Bronze Age (approximately 3300–1200 BCE, varying by region) marked a transformative period in human history, characterized by the widespread use of bronze for tools, weapons, and armor. As societies became more complex and conflicts more frequent, warfare and interpersonal violence became prominent aspects of Bronze Age […]
Cyclic Test Analysis of Concrete-Filled Steel Box Column-Validation Model
Introduction Concrete-Filled Steel Box Columns (CFSBCs) are a type of composite structural member that combines the advantages of both steel and concrete. A typical CFSBC consists of a hollow rectangular or square steel section filled with concrete. This hybrid design offers enhanced strength, stiffness, ductility, and energy dissipation capabilities, making it highly suitable for seismic […]
Numerical investigation of concrete-filled double skin steel tubular structure subjected to underwater explosion
Concrete-filled double-skin steel tubular (CFDST) structures are a type of composite structure that consists of two concentric steel tubes (an inner and outer steel tube) with concrete filled in the annular space between them. These structures are increasingly used in offshore, marine, and defense-related applications due to their excellent strength-to-weight ratio, enhanced energy absorption capacity, […]
Numerical Study on the Ballistic Impact of Hard Bulletproof Vests: Influence of Multilayer Armor Design
This study presents a finite element analysis of the ballistic impact behavior of hard bulletproof vests, focusing on the influence of multilayer armor design. Using Abaqus/Explicit, a ceramic/composite armor system is modeled and subjected to various projectile velocities, layer thicknesses, and projectile diameters. The research evaluates target damage modes, residual projectile velocities, and energy absorption […]
