Impact of a blunt-nosed projectile with an Aluminum plate (1100-H12) in the Abaqus

Product Overview

In this problem, a three-dimensional solid model is developed in Abaqus/Explicit to simulate the impact of a blunt-nosed projectile on an Aluminum 1100-H12 plate.

Model Description

The projectile is modeled as a rigid body, while the target plate is modeled as a deformable solid body. A reference point is used to define the mass and initial velocity of the projectile.

Surface-to-surface contact is defined between the projectile and the Aluminum plate to simulate the impact and subsequent deformation of the target. The effect of friction between the projectile and the target plate is neglected.

Johnson-Cook Damage Model

The Johnson-Cook material model is used to describe the behavior of the 1100-H12 Aluminum alloy during the high-velocity impact.

The model accounts for the effects of plastic deformation, strain rate, and temperature on the material response. The Johnson-Cook material parameters used in the Abaqus simulation are taken from the reference study.

The material model is combined with the Johnson-Cook damage model to simulate material failure during projectile impact. The damage formulation is used to predict the initiation and evolution of damage leading to failure of the Aluminum plate.

Deformation

The impact of the blunt-nosed projectile causes localized deformation and shearing of the 1100-H12 Aluminum plate. When the projectile completely penetrates the plate, a circular hole is formed in the target.

The failure mechanism is mainly associated with shearing of the target material, resulting in the formation and removal of a circular plug. The diameter of the separated plug is approximately equal to the diameter of the projectile, while its thickness is approximately equal to the original thickness of the Aluminum plate.

The Abaqus simulation reproduces this perforation behavior, including the formation of the circular hole and the separation of the circular plug from the Aluminum plate. These results are consistent with the deformation and failure mechanism reported in the reference study.

Residual Velocity

To investigate the residual velocity of the projectile, the impact problem is simulated five times using different initial projectile velocities of 87.455, 92.455, 102.5, 104.036, and 115.6 m/s.

The main objective of these simulations is to determine the residual velocity of the blunt-nosed projectile after it passes through the 1100-H12 Aluminum plate. The residual velocity obtained from each Abaqus simulation is then compared with the corresponding experimental results reported in the reference study.

Validation

This project has been validated, which means that the results obtained from the Abaqus software are similar to the results of the article.

In other words, this project is based on the reference article.

What You Will Learn

• How to model a blunt-nosed projectile in Abaqus.
• How to define the projectile as a rigid body.
• How to model an Aluminum 1100-H12 plate.
• How to define the impact analysis.
• How to use the Johnson-Cook damage model for material failure.
• How to investigate the deformation of the Aluminum plate.
• How to compare Abaqus deformation results with experimental results.
• How to obtain the residual velocity of the projectile.
• How to plot the residual velocity versus initial velocity diagram.
• How to validate the numerical model using the reference article.

Key Features

• Impact analysis of a blunt-nosed projectile.
• Rigid projectile modeling.
• 1100-H12 Aluminum plate.
• Johnson-Cook damage model.
• Impact deformation analysis.
• Comparison between Abaqus and experimental results.
• Residual velocity analysis.
• Residual velocity versus initial velocity diagram.
• Validation against the reference article.
• Complete Abaqus CAE file.
• Abaqus INP file.
• Excel file (Results).
• Reference research paper.
• Step-by-step video tutorial.

Reference

This project is based on the reference research article. The research paper is included with the project files and can be used to review the experimental impact test and the reported results.