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Tag: Johnson–Cook

Analysis of aluminum-wood composite panels under high-velocity impact

Aluminum-wood composite panel under 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 […]

Arrowhead’s impact on the human skull , Weapon and trauma in the Bronze Age

Arrowhead impact on skull

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

Numerical investigation of CFDST structure subjected to underwater explosion loading

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

GLARE

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 […]

Behaviour of Cylindrical Steel Drums Under Blast Loading Conditions

Finite element simulation of steel drums under blast loading in Abaqus

Papers abstract: The Buncefield incident in the UK in 2005 involved an explosion of 240,000 m³ of vapour cloud which resulted in considerable damage to properties in the surrounding area. A number of objects that can be used as overpressure indicators such as standard steel drums were located at various points around the site. These […]

Finite Element Modelling of Electro-Hydraulic Forming of Sheets

electro hydraulic forming simulation

Papers abstract: High velocity sheet metal forming methods, such as electromagnetic forming and electro hydraulic forming (EHF), are based on high voltage electrical energy. This paper gives theoretical details about high strain rate forming in the Electrohydraulic forming process. Following the experimental results in the literature, a simulation of the high strain rate forming was […]

Determination of Johnson–Cook Plasticity Model Parameters for Inconel718

Johnson–Cook model stress-strain curve parameters

Papers abstract: In order to simulate foreign object damage (FOD) phenomenon in aircraft high-pressure compressor blades made of a nickel-based super-alloy, Johnson–Cook (J–C) plasticity model was used. For prediction of material’s plastic behavior at temperature of 400 °C (working temperature of the blades) in the range of strain rates associated with the FOD phenomenon (in […]

Cold spray analysis of an ABS particle with the CEL method

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 […]