Laboratory and Field Testing of the M1 Lightweight Steel Tow Bar System
ARMY LAB COMMAND WATERTOWN MA MATERIALTECHNOLOGY LAB
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In conjunction with the U.S. Army Tank-Automotive Command TACOM, the U.S. Army Materials Technology Laboratory MTL has developed a lightweight steel tow bar system as an alternative to the current system used in the recovery of Ml Main Battle Tanks. The advantages of the new tow bar system are an increase in strength by 30, lighter weight 23 weight savings, and interchangeable legs. A series of instrumented laboratory and field tests were conducted in order to evaluate the structural integrity of this new steel tow bar system. The laboratory tests were performed in a 600,000-lb capacity tensioncompression test machine at MTL. The field tests were conducted on the Perryman and Churchville Test Courses at Aberdeen Proving Ground, Aberdeen, MD. Prior to and following all tests each tow bar leg was examined for structural integrity using X-ray radiography. This nondestructive evaluation method was used to verify the success of weld penetration and identify any areas where cracks may have been induced as a result of welding or testing.
- Properties of Metals and Alloys
- Surface Transportation and Equipment