Accession Number : ADA256895


Title :   Laboratory and Field Testing of the M1 Lightweight Steel Tow Bar System


Descriptive Note : Final rept.


Corporate Author : ARMY LAB COMMAND WATERTOWN MA MATERIALTECHNOLOGY LAB


Personal Author(s) : Cavallaro, Christopher ; Dooley, Robert B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256895.pdf


Report Date : Aug 1992


Pagination or Media Count : 31


Abstract : 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 tension/compression 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.


Descriptors :   *STEEL , *TOW BARS , TEST AND EVALUATION , COMPRESSION , LABORATORY TESTS , NONDESTRUCTIVE TESTING , WELDS , TENSION , COMBAT VEHICLES , VEHICLES , WELDING , RECOVERY VEHICLES , RADIOGRAPHY , ARMY , RODS , LIGHTWEIGHT , WEIGHT , PENETRATION , CRACKS , FIELD TESTS , X RAYS , STRENGTH(MECHANICS)


Subject Categories : Properties of Metals and Alloys
      Surface Transportation and Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE