Side impact test of truck was simulated in LS-DYNA with pole and moving deformable barrier according to FMVSS and IIHS. Composite materials were used in rails to see the difference between steel and composite.
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Side Impact and composite rail analysis using LS-DYNA
1. Crashworthiness and Occupant Protection in
Transportation Systems I
ME 8020
Test No.4
SIDE IMPACT and
Effect of frontal crash on Steel and Composite rail
Analysis
Presented By: Suravi Banik (fz4276)
2. Objective
• Side impact test with pole
• Side Impact test with Moving Deformable Barrier
• Steel analysis in rails
• Composite Analysis in rails &
• What if Analysis
3. Side Impact
The National Safety Council reports side-impact crashes, also referred to as
roadside, or T-bone collisions, are second only to head-on collisions in the
number of serious injuries and fatalities they cause each year. During a side-
impact collision, one car hits the other in a perpendicular direction.
The purpose of side impact test is
• To reduce the risk of serious and fatal injury to occupants of passenger cars,
multipurpose passenger vehicles, trucks, and buses during side impacts.
• To obtain vehicle crashworthiness test data for different types of side impact
tests.
11. What if analysis [pole] (1): changing the thickness of door and B-pillar
Originally, thickness of F-OB-DOOR-DRVR-INNER-
SILL-LEFT=1.95 mm;
for what if analysis it is 6 mm
Originally, thickness of F-CH-B-PILL-INNR3 =1.10 mm;
for what if analysis it is 5 mm
Given
Modified
Given
Modified
14. Side Impact Test with Moving Deformable Barrier
The moving Deformable Barrier
strikes stationary vehicle at 90
degrees.
Weight of the deformable
barrier =1500 kg
34. Conclusion
• Side impact with pole and moving deformable barrier causes more or less injuries to the
occupants whether it has restraint system or not.
• Side airbag also plays an important role to protect the occupants from the side impact
crash.
• The energy plots of both the side impact tests are balanced.
• Changing thickness of door and B-pillar causes a little change of impact but not very
significant.
• From the frontal test with steel materials in rails, we can see that due to frontal crash
intrusion occurs to the occupants which is really dangerous.
• From the composite analysis we can see parts are separated from the rail due to the
frontal crash so that less intrusion occurs.
• Using composite materials rather than steel reduces the weight of the vehicle and
absorbs more energy.
• Using composite is less costly than using steel or aluminum.
• Composite materials are more safe than any other metals.