The EST CRASH BUFFER
Information and References

Vehicle crash tests with locomotives

Images from the vehicle crash tests at the DB repair facility in Opladen, September and October 2003.
The tests were performed in cooperation with DB Cargo (Railion) and DB Systemtechnik.
The test vehicles were DB Class 140 545-5 (83t, resting) and DB Class 150 142-8 (126t, impacting vehicle).
(Photo: EST, added 25.10.2004).

(Photo: EST, added 25.10.2004).

(Photo: EST, added 25.10.2004).

(Photo: EST, added 25.10.2004).

(Photo: EST, added 25.10.2004).

Stills from the high-speed video recording.
The numbers give the time in milliseconds.
The ten stages of the sequence: [1] before contact, [2] contact, [3] elastic deflection,
[4] exhaustion of the elastic range (of all four buffers), [5] lhs buffers trigger,
[6] progressive deformation of the lhs buffers, [7] exhaustion of the plastic range (lhs),
[8] rhs buffers trigger, [9] progressive deformation of the rhs buffers,
[10] end of deformation (without exhaustion of the rhs buffer)
(Illustration: EST, added 25.10.2004).

(Photo: EST, added 02.06.2006).

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