J1981_200503 Road Hazard Impact Test for Wheel and Tire Assemblies (Passenger Car, Light Truck, and Multipurpose Vehicles)
Revised
03/16/2005
- Features
- Issuing Committee
- Content
- The test is designed to evaluate the frontal impact resistance of wheel and tire assemblies used with passenger cars, light trucks and multi-purpose vehicles. The test is specifically related to vehicle pothole tests that are undertaken by most vehicle manufacturers. The scope has been expanded to allow the use of a striker that can be angled to preferentially impact the inboard and outboard wheel flange. For side impact of the outboard rim flange only, please refer to SAE J175. This SAE Recommended Practice provides a procedure to test a wheel or a tire and the test failure criteria. The specific test for a vehicle requires input from a pothole test on that vehicle to establish the drop height of the striker used in this test.
- Content
- The current SAE 1981 covers equipment and procedures to conduct a frontal impact test on a wheel to simulate a road hazard impact. This review adds the performance requirements for a wheel undergoing the test. The revisions to the standard includes the test parameters of the tire and the wheel. This performance criteria establishes a functional degradation of the wheel due to impact and not cosmetic issues. By establishing the performance level in addition to the test parameters, impact energy levels can be evaluated to further develop the standard for a minimum wheel performance on frontal impacts. Until this test is completed, the specification refers to the actual vehicle pothole test to establish the impact energy or to develop the energy from damage seen on the wheel for real world cases.
- Pages
- 16
- Citation
- SAE International Recommended Practice, Road Hazard Impact Test for Wheel and Tire Assemblies (Passenger Car, Light Truck, and Multipurpose Vehicles), SAE Standard J1981_200503, Revised March 2005, Issued June 1994, https://doi.org/10.4271/J1981_200503.