A NEW THEORY OF HYSTERETIC SLIDING FRICTION

THE CONCEPT THAT THE DAMPING PROPERTIES OF RUBBER CONTRIBUTE THE GREATER PROPORTION OF FRICTIONAL RESISTANCE WHEN RUBBER SLIDES ON AN IRREGULAR LUBRICATED SURFACE IS SUPPORTED. A RIGOROUS MATHEMATICAL MECHANO-LATTICE ANALOGY ANALYSIS FOR CALCULATING THE HYSTERETIC SLIDING FRICTION OF, AND STRESSES IN RUBBER SLIDING ON VARIOUSLY SHAPED ASPERITIES IS PRESENTED AND LARGELY VALIDATED. THE ANALYSIS ALLOWS LARGE DEFORMATIONS AND ANY POISSON'S RATIO, RIGIDITY OR DAMPING FACTOR OF THE RUBBER. A METHOD OF APPLYING THE RESULTS OF THIS ANALYSIS TO THE PROBLEM OF PREDICTING THE COEFFICIENT OF LUBRICATED FRICTION OF RUBBER SLIDING ON ROADSTONES IS SHOWN TO BE REASONABLY ACCURATE. AN EXPLANATION OF THE AREA DEPENDENCE AND THE LOAD DEPENDENCE OF THE COEFFICIENT OF SLIDING FRICTION IN TERMS OF HYSTERESIS IS GIVEN. THE EFFECT OF THE SHAPE AND SMOOTHNESS OF ASPERITIES AND THE VALUE OF POISSON'S RATIO OF THE RUBBER ON THE CRITICAL STRESSES IN AND THE COEFFICIENT OF FRICTION OF THE RUBBER, AS DISCOVERED BY THE NEW STRESS ANALYSIS, ARE REPORTED. A POSSIBLE SOURCE OF ABRASION OF RUBBER DUE TO HEATING BY THE FINE TEXTURE IS DISCUSSED. /RRL(A)/

  • Supplemental Notes:
    • Vol 17, No 4, PP 229-244, 13 FIG, 15 REF
  • Authors:
    • Yandell, W O
  • Publication Date: 1971-4

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Filing Info

  • Accession Number: 00206897
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Nov 1 1971 12:00AM