This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Low Speed Collinear Impact Severity: A Comparison Between Full Scale Testing and Analytical Prediction Tools with Restitution Analysis
Technical Paper
2002-01-0540
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Low speed collinear collisions have received some attention in the past in published technical literature. Underrepresented are full-scale instrumented tests utilizing vehicles equipped with foam core bumpers and closing speeds greater than 2.2 meters per second (m/s). Systematic testing was designed to obtain data in collisions between vehicles with similar and mixed bumper structures. Testing was performed at closing speeds ranging from 0.8 to 5.4 m/s. Following each test, vehicle bumper and other damage was documented. Data from the 30 tests for each category of bumper and mixed categories were analyzed to identify the test speed, load magnitude, velocity change, duration of impact and coefficient of restitution. In addition, the energy absorption characteristics and damage thresholds of the various types of bumper systems were obtained. The coefficient of restitution was analyzed as a function of closing speed, velocity change, impact duration, bumper type, and other parameters and compared to previously published data and equations. A modified momentum-energy-restitution (MER) method was also used to calculate predicted vehicle response for each test and compare it to the actual test results.
Recommended Content
Authors
Citation
Cipriani, A., Bayan, F., Woodhouse, M., Cornetto, A. et al., "Low Speed Collinear Impact Severity: A Comparison Between Full Scale Testing and Analytical Prediction Tools with Restitution Analysis," SAE Technical Paper 2002-01-0540, 2002, https://doi.org/10.4271/2002-01-0540.Also In
References
- Antonetti, V.W. “Estimating the Coefficient of Restitution of Vehicle-to-Vehicle Bumper Impacts” SAE 980552
- Howard, R.P. Bomar, J. Bare, C. “Vehicle Restitution Response in Low Velocity Collision” SAE 931842
- Malmsbury, R.N. Eubanks, J.J. “Damage and/or Impact Absorber (Isolator) Movements Observed in Low Speed Crash Test Involving Ford Escorts” SAE 940912
- Siegmund, G.P. King, D.P. Montgomery, D.T. “Using Barrier Impact Data to Determine Speed Change in Aligned, Low Speed Vehicle-to-Vehicle Collisions” SAE 960887
- Siegmund, G.P. Bailey, M.N. King, D.J. “Characteristics of Specific Automobile Bumpers in Low-Velocity Impacts” SAE 940916
- Szabo, T.J. Welcher, J. “Dynamics of Low Speed Crash tests with Energy Absorbing Bumpers” SAE 921573
- Siegmund, G.P. Bailey, M.N. King, D.J. “Automobile Bumper Behavior in Low-Speed Impacts” SAE 930211
- http://www.neptuneeng.com
- Campbell, K.L. “Energy Basis for Collision Severity” SAE 740565
- Prasad, A.K. “Energy Dissipated in Vehicle Crush-A Study Using the Repeated Test Technique” SAE 900412