High-velocity impact of titanium projectile on the aluminum plate Abaqus

Product Overview

In this example, we simulate the high-velocity impact of a solid plate projectile on a 2618 aluminum alloy plate using the Abaqus software.

The projectile has a 22 mm thickness and impacts the aluminum plate at an oblique angle of 90°. The deformation and failure behavior of the aluminum plate are investigated during the impact process.

The Johnson-Cook damage model are used to simulate the material behavior and failure under high-velocity impact. The Abaqus results are compared with the experimental results reported in the reference study.

Materials

The target plate is made of 2618 aluminum alloy, while the projectile is made of Ti-6Al-4V titanium alloy.

The material models are defined to represent the behavior of both materials during the high-velocity impact. The Johnson-Cook model is used to account for the material response under the high strain rates and large plastic deformation generated during the impact.

Johnson-Cook Damage Model

To accurately simulate the material failure during the high-velocity impact, the Johnson-Cook damage model is used in Abaqus. This model is suitable for describing the failure behavior of ductile metals under conditions involving large plastic deformation, high strain rates, and material failure.

In this simulation, the Johnson-Cook damage model is used to predict the initiation and evolution of damage in the material during the impact process. The model considers the effects of plastic strain, strain rate, and temperature on material failure.

Impact Analysis

The Ti-6Al-4V titanium projectile impacts the 2618 aluminum alloy target at an initial velocity of 210 m/s. The effect of the projectile impact on the aluminum plate is investigated using Abaqus.

Comparison with Experimental Results

The experimental test was performed using a 22 mm thick 2618 aluminum plate impacted by the Ti-6Al-4V titanium projectile at an initial velocity of 210 m/s. The projectile did not penetrate the plate and rebounded after the impact.

A relatively smooth dent was formed on the front surface of the aluminum plate, while a visible crack developed on the back surface. The experimental results also showed that the plate was not perforated under these impact conditions.

The Abaqus simulation reproduces the main deformation characteristics observed in the experiment. The non-perforation of the aluminum plate, the formation of the dent on the front surface, and the overall damage pattern are in good agreement with the experimental observations reported in the reference study.

Projectile Velocity

According to the experimental results reported in the reference study, the Ti-6Al-4V titanium projectile rebounds after impacting the 22 mm thick aluminum plate. For an initial velocity of 210 m/s, the reported residual velocity is −30 m/s, indicating that the projectile moves in the opposite direction after impact.

The Abaqus simulation also predicts the rebound of the projectile. The residual velocity obtained from the Abaqus results is approximately 20 m/s in the opposite direction, which is consistent with the experimental observation that the projectile rebounds after impacting the aluminum plate.

Validation

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

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

What You Will Learn

• How to model a high-velocity impact problem in Abaqus.
• How to model an aluminum plate made of 2618 Aluminum alloy.
• How to model a titanium projectile made of Ti-6Al-4V Titanium alloy.
• How to define the impact analysis.
• How to investigate the deformation of the aluminum plate.
• How to observe the dent created by the projectile impact.
• How to obtain the projectile velocity from Abaqus results.
• How to plot the projectile velocity diagram.
• How to compare Abaqus results with experimental results.
• How to validate the numerical model using the reference article.

Key Features

• High-velocity impact analysis.
• Ti-6Al-4V Titanium projectile.
• 2618 Aluminum alloy plate.
• Impact deformation and dent formation.
• Projectile velocity analysis.
• Projectile velocity diagram.
• Comparison between Abaqus and experimental results.
• Validation against the reference article.
• Complete Abaqus CAE file.
• Abaqus INP file.
• 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 impact test and the experimental results.