II. MODELLING AND FINITE ELEMENT ANALYSIS
A. Assembled Model
The car body structure is modelled in SOLIDWORKS software by using different commands and another car model is placed exactly opposite to the first car structure at 10 m distance as shown in Fig. 1. Figure 1. Assembled model of car structures.
A car body structure and a wall are modelled in SOLIDWORKS software and placed exactly opposite to each other at 10 m distance as shown in Fig. 2. Figure 2. Assembled model of car and wall.
B. Element Type
The element type used was SOLID 186. SOLID 186 is a higher order 3-D with 20-node having three degrees of freedom per node, solid element that exhibits quadratic displacement behaviour. The element supports plasticity, hyper elasticity, creep, stress stiffening, large deflection, and large strain capabilities.
C. Meshing
After assigning element type to the car structure, the created solid model is converted into IGES format and imported…show more content… Fixing the wall.
In the analysis setting, velocity of 1500 m/s is given to the car structure in the X-direction so that the car must hit the wall as shown in Fig.8. Figure 8. Assigning velocity of 1500m/s to the car structure.
III. RESULTS AND DISSCUSSIONS
After assigning velocity to car structures and fixing the wall, crash analysis is performed in ANSYS workbench and the following results were observed in crash analysis.
A. Total Deformation of Car to Car
After performing crash analysis of car to car hitting each other with a velocity of 1000 m/s, maximum total deformation of 0.09 m and minimum total deformation of 0.03 m is observed from the Fig.9. Figure 9. Total deformation of car to car.
B. Total Deformation of Car to Wall
After performing crash analysis of car hitting the wall with a velocity of 1500 m/s, maximum total deformation of 0.33 m and minimum total deformation of 0.03 m is observed in the car from the Fig.10. Figure 10. Total Deformation of car hitting the wall.
IV.
