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 […]
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, […]
Analysis of high-low velocity impact response of GLAREs
Introduction In modern aerospace engineering and defense industries, impact resistance of materials is a critical factor in ensuring structural safety and durability. One class of materials that has gained significant attention for its superior impact performance is GLARE (Glass Laminate Aluminum Reinforced Epoxy). GLARE is a type of Fiber Metal Laminate (FML) that combines aluminum […]
Cold spray analysis of an ABS particle with the CEL method
Introduction Cold spray (CS) is a solid-state coating and additive manufacturing process where fine metal or polymer particles are accelerated to high velocities (300–1200 m/s) using a supersonic gas jet (typically air, nitrogen, or helium) and directed toward a substrate. Upon impact, these particles deform plastically and bond to the surface without melting. This unique […]
Analysis of a composite GLARE panel under air blast load
Analysis of close-range blast loading based on the CEL method over a concrete composite concrete slab
In recent years, there has been a rise in bombing terrorist attacks and accidental explosions worldwide. Recently, a new type of building Concrete slab-steel beam, has been proposed. The Coupled Eulerian-Lagrangian (CEL) method is a numerical approach that combines the Eulerian and Lagrangian finite element methods to address fluid-structure problems. By leveraging the strengths of […]
Analysis and simulation of high-velocity impact on a Composite panel(CFRP-Aluminum foam-Aluminum honeycomb-CFRP)
This study presents a comprehensive finite element simulation of a high-velocity impact on a hybrid composite sandwich panel consisting of Carbon Fiber Reinforced Polymer (CFRP) face sheets, an aluminum foam core, and an aluminum honeycomb mid-layer. The structural configuration aims to maximize energy absorption and minimize damage propagation under extreme dynamic loads. A spherical projectile […]
Bending test analysis of an RC beam with sustainable aluminum boxes filled with UHPC
Abstract This paper presents a numerical analysis of the shear improvement of defected reinforced concrete (RC) beams using sustainable aluminum boxes filled with high performance concrete. Introduction Reinforced concrete (RC) beams are fundamental structural elements in buildings and infrastructures, but they are susceptible to shear failure, especially when compromised by defects such as cracks, voids, […]
Finite element analysis on the air blast resistance of stiffened cylindrical tubular aluminum panel
Abstract Aluminum sandwich structures are widely used in modern engineering due to their lightweight, high stiffness, and energy absorption capabilities. These structures typically consist of two strong outer face sheets and a lightweight core (e.g., honeycomb, foam, or lattice). When subjected to air blast loads, such as those from explosions, these structures can help absorb […]
Strengthening of reinforced concrete slabs using carbon fiber reinforced polymers rods and concrete jacket with a mechanical anchorage system under rigid impact load
Abstract This study presents the development of a new method for strengthening Reinforced Concrete (RC) slabs using Carbon Fiber Reinforced Polymer (CFRP) rods and an Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) external jacket with a Mechanical Anchorage System (MAS) under impact loading. Introduction Over the past few decades, the challenges associated with ageing and deterioration […]
