Explicit Dynamic Analysis of Bullet Penetrating into Bucket using ANSYS Workbench
Objectives: To perform explicit analysis in bullet penetrating bucket challenge
Geometrical Design:
For this analysis we have a 3D Geometry of Bullet and Bucket, this is how model looks like.
Material Properties:
In this analysis 3 different materials will be used for bucket and for bullet only structural steel will be used.
Problem Statement:
A Bucket consist of three different materials will be used for analysis, bucket will be fixed from the bottom side. Bullet will be applied with certain velocity so that it will penetrate into the bucket. The bucket will deform due to effect of impact of bullet. Total Deformation, Equivalent Elastic Strain and Equivalent Stress will be observed throughout the simulation. Explicit dynamics module of ANSYS Workbench will be used for analysis.
Mesh Criterion:
Element Type: Tet & Hex Mesh
Element Size: 19.623 mm (Default)
Mesh Model:
Element Quality:
Boundary Condition:
Bottom face of Bullet will be fixed in all directions; this is how geometry looks like after constrained. We will focus for deformation only on Bucket so Bullet Stiffness Behavior is kept as rigid.
Stiffness Behaviour:
Fixed Support:
Loading & Analysis Setting:
Bullet made up of Structural Steel will be given the velocity of 139 m/s in - X direction.
Velocity:
Post Process:
Case 1: Aluminum Alloy NL
Total Deformation
Equivalent Elastic Strain
Equivalent Stress
Energy Conservation
Case 2: Stainless Steel NL
Total Deformation
Equivalent Elastic Strain
Equivalent Stress
Energy Conservation
Case 3: Copper Alloy NL
Total Deformation
Equivalent Elastic Strain
Equivalent Stress
Energy Conservation
Click here to see animation of this project,
Bullet Pentrating into Bucket || Explicit FEA || ANSYSWorkbench
Post Process Results Summary;
Results & Conclusion:
1) Max Total Deformation is higher in C3 (Copper Alloy NL) and Lower in C2 (Stainless Steel NL)
2) Max Equivalent Strain is higher in C3 (Copper Alloy NL) and Lower in C1 (Aluminum Alloy NL)
3) Max Equivalent Stress is higher in C3 (Copper Alloy NL) and Lower in C2 (Stainless Steel NL)