We thought it’d be fun to showcase some of our tools using a new series we call Crash Test Tuesday. This week, we’re going to start with a simple car crash. Who do you think would win in this crash – Geo Metro vs. 3/4 Ton pickup truck.
Or maybe a better question, how well is the Geo designed? Can it handle the impact?
First, let’s look at our contenders.
Geo Metro
Our first contender, weighing in at a meager 1500 lb, with a top speed of 93 mph, 0-60 in 7 years, the Geo Metro!
And the crash test rating? – 4/5 stars!
How can that be? It’s such a small car!
Well, the Geo was designed to absorb energy, transferring it around the passenger compartment like a Faraday cage. It’s like a secret weapon.
Chevy C2500
Our second contender, weighing in at a whopping 4300 lbs (almost 3 times the Geo), with a power output of 230 hp, the Chevy C2500!
The C2500 was tested by the NHTSA, and it received 4/5 stars!
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Crash Test
Both vehicles received a 4/5 stars on their crash tests, so this should be a fair test right?
I ran a test, crashing these cars together at a relative speed of 55 mph (27.5 mph each).
Let’s look at the results.
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I think the truck won.
Safety Cage
The most important part of a car in a crash test is the safety cage. After all, that’s where the people are stored!
The Geo did way better than I expected, but there was one issue. Look at the image below, see the wrinkle at the top of the safety cage? That’s a weakness, The safety cage buckled, which means that it’s not going to transmit force around the cage. The Faraday cage is broken, and the passengers would be in danger.
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That sums up this week’s crash test. Join us next week for a new crash test! Let me know your thoughts in the comments section below.
3 thoughts on “Crash Test Tuesday: Geo Vs. Chevy C2500”
Is the deflection and/or failure of the windshield modeled? What is transmitting the energy into the roof panel?
Great Question! The windshield is technically modeled, but the yield stress is very low (<1 psi). When the windshield element stress exceeds the yield stress, they can't pick up any more energy. The load into the roof is transmitted through the A pillars.
I have been looking all over for the Metro Model
I looked here
https://www.ccsa.gmu.edu/models/
http://www.ncac.gwu.edu/vml/models.html
https://www.nhtsa.gov/crash-simulation-vehicle-models
Where can I get the Geo Model