13 replies to this topic

[Marklar]

AMuS published last month in their magazine a story about the accident database of the FIA which was founded in 1996. Yesterday they also published it on their website. I think it is quite interesting and I would like to share it also with non-German-speakers.

They got the data from 11 crashes in the past (2 in the WEC, 9 in F1). As an example they also got the detailed analyses of Webbers crash last year in Sao Paulo


On the first datasheet they have all the data about the speed of the car, on which speed the driver lost the control of the car, with which speed he suffered the impact, how much time past between the control lost and the impact, which angle he had at the impact, etc. Furthermore on this sheet they also listed the Accelerations.

On this datasheet you can see on which direction of the car we had the Accelearation (red) and the loss of velocy (black).

This datasheet is a bit more detailed: On the left we have the acceleration in the moments of the impact (within 300 ms). On the right the velocy change in the moments of the impact. The graph below is shows how much the car got deflected after the impact.


AMuS also did an interview with FIA-accident-reasearcher Andy Mellor (google translate)

https://translate.go...or-9908331.html


Here are some more raw data about other crashes in the FIA database.

Mark Webber (Porsche/WEC/Interlagos 2014)
Lost of control: 245 kph
Impact: 185 kph
Angle: 28 degrees backwards
Deceleration: 98.2 g

Max Verstappen (Toro Rosso/F1/Monaco 2015)
Lost of control: 268 kph
Impact: 120 kph
Angle: 90 degrees frontal
Deceleration: 22.0 g

Felipe Massa (Ferrari/F1/Budapest 2009)
Lost of control: 259 kph
Impact: 104 kph
Angle: 60 degrees frontal
Deceleration: 21.5 g

Robert Kubica (BMW/F1/Montreal 2007)
Lost of control: 277 kph
Impact: 227 kph
Angle: 17 degrees frontal/sideways
Deceleration: 43.1 g

Jenson Button (BAR/F1/Monaco 2003)
Lost of control: 298 kph
Impact: 90 kph
Angle: 90 degrees sideways
Deceleration: 29.7 g

Takuma Sato (Jordan/F1/Spielberg 2002)
Lost of control: 0 kph
Impact: 56 kph
Angle: 90 degrees
Deceleration: 55.0 g

Sergio Perez (Sauber/F1/Monaco 2011)
Lost of control: 279 kph
Impact: 110 kph
Angle: 90 degrees sideways
Deceleration: 81.6 g

Luciano Burti (Prost/F1/Spa 2001)
Lost of control: 291 kph
Impact: 155 kph
Angle: 30 degrees forwards
Deceleration: 85.4 g

Kimi Räikkönen (Ferrari/F1/Silverstone 2014)
Lost of control: 239 kph
Impact: 172 kph
Angle: 20 degrees forwards
Deceleration: 54.9 g

Jules Bianchi (Marussia/F1/Suzuka 2014)
Lost of control: 213 kph
Impact: 126 kph
Angle: 55 degrees sideways
Deceleration: 58.8 g

Allan Simonsen (Aston Martin/GT/Le Mans 2013)
Lost of control: 122 kph
Impact: 78 kph
Angle: 38 degrees sideways/backwards
Deceleration: not recorded


What action were taken to improve the safety of F1

• 1975 NEW: headrest in the cockpit, fire extinguisher on board
• 1976 NEW: Feet driver behind front axle, rollbar front wheel
• 1984 NEW: Crash Test forward 10 m / s
• 1985 Crash Test forward 10 m / s -> 11 m / s, NEW: Side 5 m / s
• 1988 NEW: Static load test cockpit, Tank
• 1989 NEW: Cockpit 50.8 cm (height). 60 cm (length), 45 cm (width)
• 1993 NEW: stress test rollbar 5.8 t (vertical)
• 1995 Crash Test forward 11 m / s -> 12 m / s, NEW: Hatchback 5 m / s, Cockpit 55cm (height), 65 cm (length), 45 cm (width)
• In 1996 new: 75 mm neck protection, headrest 2500 mm, 22 cm below the cockpit roll bar line (height), 77.5 cm (length), 52 cm (width), accident recorder
• 1997 Crash Test tail 5 m / s -> 12 m / s, NEW: compressible steering column
• 1998 Crash Test side 5 m / s -> 7 m / s, NEW: cockpit footwell: 45 * 35 cm
• 1999 Crash Test forward 12 m / s -> 13 m / s, helmet 70 cm below line roll bar, NEW: Depending 1 wheel rope 5 t, seat removeable with driver
• 2000 Crash Test forward 13 m / s -> 14 m / s, load test rollbar 6.0 t (vertical), 4.5 t (longitudinal), 2.4 t (side) NEW: Static load test: nose, footwell, seat, tank, chassis thickness: 3.5 mm (incl. Kevlar layer)
• 2001 Crash Test Side 7 m / s -> 10 m / s, Cockpit 850 cm (length), rollbar 9.0 t (vertical), 6.0 t (longitudinal), 5.0 t (side) footwell padding 25 mm
• 2002 2 wheel ropes 5 t, NEW: Crash surface side: 45 * 55 cm
• 2003 Crash Test forward 14 m / s -> 15 m / s, NEW: provision HANS
• 2006 Crash Test rear 12 m / s -> 15 m / s
• 2007 Crash Test rear 15 m / s -> 12 m / s, crash area behind 10 * 13 cm, NEW: chassis flank with cyclon to 55 cm height
• 2008 Headrest size 3300 mm², cockpit walls 5 cm higher
• 2010 5 cm cyclon for Helmets
• 2011 chassis base with cyclon
• 2013 Crash test standards for testing
• 2014 standard crash structure side: 2 pins à 12 cm, 50 cm in front of the cockpit rear wall
• 2015 Complete chassis with cyclon

And they also did an interview with FIA-safety-coordinator Peter Wright (google translate)

https://translate.go...ew-9908404.html

Source
http://www.auto-moto...hs-9908318.html
http://www.auto-moto...er-9908395.html

Edited by Marklar, 13 August 2015 - 12:01.

[Peat]

Interesting stuff, i'll have a closer look this evening. Cheers. 

[Tapz63]

Takuma Sato (Jordan/F1/Spielberg 2002)
Lost of control: 0 kph
Impact: 56 kph
Angle: 90 degrees
Deceleration: 55.0 g

Lol. As soon as he got in the car had lost control.

[PayasYouRace]

That's incredible detail. It'll take a while to work through all that.

[lars75]

The speed and impact from Simonsen is hard to believe that this would be fatal!!!

 

Especialy compared to Webbers crash!

Edited by lars75, 13 August 2015 - 13:08.

[Prost1997T]

Driver's side into a barrier that was directly in front of a large immovable object (a tree). Not really that hard to believe. Plus the GT cars have completely different crash structures to Prototypes.

[lars75]

Driver's side into a barrier that was directly in front of a large immovable object (a tree). Not really that hard to believe. Plus the GT cars have completely different crash structures to Prototypes.

 

Yeah that part I do understand. But just over 70 kilometers pro hour (not miles) in a manufactured racecar with rolbar and all other protection isn't usualy fatal. As for the crash of Webber, Davidson and if I recall correct McNish such crashes usualy are more dramatic by outcome.

[byrkus]

It really puts David Purley's accident in 1977 into perspective. 173 kph → 0 in 66 centimetres, and deceleration of 179.8 G. How could he ever survive THAT one...

[Talisman]

Takuma Sato (Jordan/F1/Spielberg 2002)
Lost of control: 0 kph
Impact: 56 kph
Angle: 90 degrees
Deceleration: 55.0 g

Lol. As soon as he got in the car had lost control.

 

That was quite a frightening accident at the time as IIRC Sato stayed in the car and wasn't seen to move for quite a few minutes with the medical team sorting him out still strapped in his seat.  I can't remember if he missed a race or two after.  For those minutes I thought we were looking at a fatality.

Just in case you didn't know he was hit as he accelerated out of turn 2 by Heidfeld who failed to brake for the corner and simply ran across the apex at speed.  He didn't lose control.

[Imateria]

That was quite a frightening accident at the time as IIRC Sato stayed in the car and wasn't seen to move for quite a few minutes with the medical team sorting him out still strapped in his seat.  I can't remember if he missed a race or two after.  For those minutes I thought we were looking at a fatality.

Just in case you didn't know he was hit as he accelerated out of turn 2 by Heidfeld who failed to brake for the corner and simply ran across the apex at speed.  He didn't lose control.

Heidfeld did brake and it spun the car, it's what made the crash so bad as he went into Sato gearbox first.

[MattK9]

The bianchi was almost completely forwards into the recovery truck and had a peak g force of 290g ish. This is not what is stated in the OP.

 

Also button 2003 vs perez 2011 were very similar but button's crash was slower. JB was knocked out but perez only had a concussion. That is a good improvement of crash safety in less than 10 years.

[Marklar]

The bianchi was almost completely forwards into the recovery truck and had a peak g force of 290g ish. This is not what is stated in the OP.

 

Also button 2003 vs perez 2011 were very similar but button's crash was slower. JB was knocked out but perez only had a concussion. That is a good improvement of crash safety in less than 10 years.

Bianchi was different. They explain it in their article. The pure crash with the car was just 58.8g - easily survivable. Problem was that he hit with the helmet the crane and by calculation he reached 290g just on the helmet.

[Kalmake]

Takuma Sato (Jordan/F1/Spielberg 2002)
Lost of control: 0 kph
Impact: 56 kph
Angle: 90 degrees
Deceleration: 55.0 g

Lol. As soon as he got in the car had lost control.

He was moving forwards when he got t-boned.

[Bleu]

I remember that Sato was moving in the car but couldn't get out. My initial thought was that he would have a broken leg or some other foot injury.