Week 10 Bullet penetrating a Bucket Challenge

BULLET PENETRATING THROUGH A BUCKET  

AIM:  

TO ANALYZE AND SIMULATE FOR THE PROVIDED MODEL OF BULLET PENETRATING THROUGH A BUCKET FOR THREE DIFFERENT MATERIALS FOR THE BUCKET. 

MODEL:  

THE MODEL HAS BEEN PROVIDED WITH A BUCKET AND A BULLET. THE BUCKET HAS BEEN SPLITTED INTO TWO PARTS. 

MATERIALS: 

THREE DIFFERENT NON-LINEAR MATERIALS HAS BEEN IMPOSED ON THE BUCKET, WHERE AS FOR THE BULLET IT IS KEPT TO TANTALLUM. 

 ALUMINIUM ALLOY NL

STAINLESS STEEL NL 

TITANIUM ALLOY NL

TANTALLUM ( BULLET - EXPLICIT )

CONNECTIONS: 

THE DEFAULT CONTACTS HAS BEEN DETECTED BY THE SOLVER, WE ARE NOT FOCUSING ON THE CONTACT FORCES WE ARE DELETING THE CONTACTS AND THE BODY INTERACTIONS HAS BEEN KEPT TO TRAJECTORY.

BODY INTERACTIONS:

MESH:  

WE ARE NOW CREATING A MESH ON THE EDGES THAT WE MADE SPLITTED, WHERE THE BULLET PENETRATES INTO EXPERIENCE THE MOST STRESS, WE ARE CREATING A 6mm EDGE SIZING MESH ON THE BUCKET, AND THE REST OF THE FACES AND THE BULLET ARE CREATED WITH GRID DEPENDENCY TEST.  

ANALYSIS SETTINGS: 

THE ANALYSIS HAS BEEN SETUP TO 0.005 SEC.  

FIXED SUPPORT: 

THE BOTTOM SIDE OF THE BUCKET IS LEFT KEPT FIXED, SO THAT, THE SIMULATION DOESNT FACE ANY MISLOCATIONS. 

VELOCITY: 

THE BULLET HAS BEEN IMPARTED WITH A VELOCITY OF 139000 mm/s IN THE DIRECTION OF X AXIS, THE BULLET HAS TO PENETRATE THROUGH THE BUCKET WHICH IS IN THE NEGATIVE DIRECTION TO THE BULLET.  

CASE 1: 

MATERIAL: ALUMINIUM ALLOY NL  

TOTAL DEFORMATION: 

EQUIVALENT STRESS (VON-MISES): 

EQUIVALENT STRAIN (VON-MISES): 

ENERGY CONSERVATION: 

THE STRESS GENERATED ON THE ALUMINIUM ALLOY NL IS 2111.1 MPa.

CASE 2:  

MATERIAL: TITANIUM ALLOY NL  

TOTAL DEFORMATION: 

EQUIVALENT STRESS (VON-MISES): 

EQUIVALENT STRAIN (VON-MISES): 

ENERGY CONSERVATION:  

 THE STRESS GENERATED ON THE TITANIUM ALLOY NL IS 4493.7MPa.

CASE 3:  

MATERIAL: STAINLESS STEEL NL 

TOTAL DEFORMATION: 

EQUIVALENT STRESS (VON-MISES): 

EQUIVALENT STRAIN (VON-MISES): 

ENERGY CONSERVATION: 

THE STRESS GENERATED ON THE STAINESS STEEL NL IS 6435 MPa.

RESULT:  

FROM THE ABOVE SIMULATION AND ANALYSIS WE CAME TO CONCLUDE THAT , THE STRESS GENERATED BY THE BULLET ON THE BUCKET IS MORE IN THE MATERIAL  STAINLESS STEEL NL , THAN ANY OTHER MATERIAL PROVIDED ABOVE , THIS SIS DUE TO THE STIFFNESSS OF THE MATERIAL , AS THE STIFFNESS OF THE MATERIAL INCREASES THE STRESS GENERATED IS ALSO INCREASES ACCORDINGLY.