Damage Analysis for High Speed Impacts?
Posted: Tue Jun 23, 2009 11:14 am
Q: Is anyone aware of papers discussing crash tests beyond the 35 mph NCAP testing?
A: It has been suggested since the 80's that the damage analysis model of CRASH and CRASH clones should consider some possible modification for higher speed impacts.
A good starting point for that discussion is
Strother, et al
They discuss possible alternative models beyond the simple linear model of CRASH such as bi-linear.
For higher speed crashes the problem becomes:
A: It has been suggested since the 80's that the damage analysis model of CRASH and CRASH clones should consider some possible modification for higher speed impacts.
A good starting point for that discussion is
Strother, et al
- Crush Energy in Accident reconstructionSAE paper 860371.
They discuss possible alternative models beyond the simple linear model of CRASH such as bi-linear.
For higher speed crashes the problem becomes:
- where does one get more than data points for various vehicles?
- A repeated crash technique was suggested by Warner, et al in SAE 860208
The repeated crash technique has been used extensively by NHTSA to create data points which for the basis for crush coefficients.
For see Prasad- "SAE Paper 900412 Energy Dissipated in vehicle Crush – A study Using the repeated Test technique[/b]".
It also includes an additional presentation/discussion of the bi-linear damage analysis model.
- "SAE Paper 900412 Energy Dissipated in vehicle Crush – A study Using the repeated Test technique[/b]".
- "Crash Pulse Modeling for Force-Limiting Structures"
Woolley SAE 2008-01-0175,
looks at the force limiting crush resistance properties of vehicles at higher speed impacts.–