PRESSURE EFFECTS ON WORN PASSENGER CAR TIRE CARCASSES

Work is described to examine the value of hydrostatic proof pressure testing in selecting used tire carcasses for retreading. Preliminary experiments on single tire cords indicate that overloads close to rupture do not damage subsequent fatigue life. A selected population of used 15-inch passenger car tires was selected and burst hydrostatically yielding a wear burst pressure of 207 psi. Additional tires are to be retreaded after pressurization to 170 psi. Their performance on MVSS 109 will be compared with an unpressurized control set of tires which are also to be recapped.

  • Corporate Authors:

    University of Michigan, Ann Arbor

    Ann Arbor, MI  USA  48109

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  USA  02142
  • Authors:
    • CLARK, S K
    • DODGE, R N
    • LEE, D W
    • Luchini, J
  • Publication Date: 1975-2

Media Info

  • Pagination: 35 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00091370
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Intrm Rpt.
  • Contract Numbers: DOT-TSC-316
  • Files: NTIS, TRIS
  • Created Date: Jul 15 1975 12:00AM