Surface friction and dynamic mechanical properties of polymers

Bueche, A. M.; Flom, D. G.

doi:10.1016/0043-1648(59)90002-x

Cited by 63 publications

(22 citation statements)

References 11 publications

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“…https://doi.org/10.1017/S1446181100013821 [4] Because there is no slipping between the ball and the surface at any point of the region 5 of contact between them, and the displacements of the surface caused by the ball are very small, the path of every point P on the ball is very nearly cycloidal, as shown in Figure 1 (a).…”

Section: The Response Of the Deformable Surfacementioning

confidence: 85%

“…https://doi.org/10.1017/S1446181100013821 The value of b was then found from (7. 4), and that of a from (7.3); they are a = 0.209 ms-2 and b = 0.152 s" 1 .…”

Section: Lawn Bowl Rolling On a Grass Rinkmentioning

confidence: 99%

“…Three sets of data were obtained from Run 1 by the method described in Section 7, using (t 2 , x 2 ) and (r 4 The values of F and G for each run were then calculated from (7.5) and (7.6). The results are as shown in Table 2.…”

Section: Lawn Bowl Rolling On a Grass Rinkmentioning

confidence: 99%

“…The problem is thus reduced to solving this equation and evaluating the constants which occur in it and in its solution. (For other approaches to the subject, see Bueche and Flom [4], which also contains a list of sixteen other references. )…”

Section: Introductionmentioning

confidence: 99%

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Rolling of a rigid ball on a horizontal deformable surface

Brearley¹,

Mestre

2004

ANZIAM J.

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The rolling of a ball on a horizontal deformable surface was investigated under the assumptions that the ball was a rigid sphere and the surface was elastic. Finite strain theory was used to develop theoretical results which were found to match observations well in cases where the ball and surface involved were such as to ensure no slipping at the region of contact, including a lawn bowl rolling on a grass rink and a billiard ball rolling on carpet. The theory did not match well the behaviour of a golf ball on a grass green because the ball was too light to enforce the no-slipping condition.

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Section: The Response Of the Deformable Surfacementioning

confidence: 85%

“…https://doi.org/10.1017/S1446181100013821 The value of b was then found from (7. 4), and that of a from (7.3); they are a = 0.209 ms-2 and b = 0.152 s" 1 .…”

Section: Lawn Bowl Rolling On a Grass Rinkmentioning

confidence: 99%

Section: Lawn Bowl Rolling On a Grass Rinkmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rolling of a rigid ball on a horizontal deformable surface

Brearley¹,

Mestre

2004

ANZIAM J.

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“…For this reason, rolling friction is not greatly affected by the presence of lubricant films. Hysteresis losses are very small for hard steels such as are used in ball and roller bearings; they can, however, be substantial in polymeric solids and rubbers (Greenwood and Tabor, 1958;Bueche and Flom, 1959). Hysteresis losses not only play a large part in rolling friction, but they also have some influence on the fatigue life of the materals.…”

Section: Rolling Frictionmentioning

confidence: 99%

Perspectives in Materials Research

1963

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Viscoelastic and friction characteristics of polydiene, and butadiene–styrene copolymer tread compounds with application to tire dynamics

White

Lin

1973

J of Applied Polymer Sci

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synopsisAn experimental study of the linear viscoelastic and friction properties of passenger tire tread compounds containing realistic black and oil contents and several different types of elastomers including cispolyisoprene, cis-polybutadiene, emulsion polymerized polybutadiene, and three emulsion polymerized butadiene-styrene copolymers (SBR's) has been carried out. E' ( u ) and tan 6 were determined as a function of frequency and temperature.At any specific frequency and temperature, tan 8 was an increasing function of T, or a decreasing function of T -T,. When the tan &frequency data were plotted a t the same T -T,, d of the treads based upon emulsion-polymerized butadiene polymers yielded nearly the same curve. Wet coefficients of friction of the tread compounds correlated with both tan 6 and T -T, supporting the idea that lubricated friction is largely due to hysteresis. The correlation among the butadiene-styrene polymers was much better than with the natural rubber, which exhibits a lower tan 6 and a higher wet coefficient of friction than an SBR of the same T,. The experimental results are used to investigate the heat buildup and skid properties of tires containing these tread compounds. INTRODUCTIONConsiderable concern exists about tire skid and traction on wet roads where accident rates are more than five times higher than on dry If we couple this with the rapid changeover in recent years from bias ply to bias-belted to radial ply tires, it indicates a growing need for quantitative tire dynamics supported by experimental data. It is well known that the primary dynamic characteristics of pneumatic tires are due to the cord construction of the so-called tire carcass. Indeed, most papel's treating the mechanics of tires are concerned with the inflation and deformation of membranes reinforced with cords.4 However, the road performance of tires is greatly modified by the composition of the tread which overlays this construction and contacts the road. This has long been realized with regard to skid resistance and tread abrasion.sSs It is our purpose in this paper to investigate the dynamic mechanical properties of the rubber compounds in tire treads and their interaction with wet and dry pavements. These experimental results will be used in conjunction with theoretical analyses to consider tire behavior. WHITE AND LIN BACKGROUNDWe begin by discussing the character and mechanical properties of tire tread compounds. It must first be noted that these compounds contain only about 50% rubber by weight, and another 50% consists of various fillers, notably finely divided carbon black and mineral oil. The recipe in Table I taken from Kienle et al.5 is typical. The rheological properties of these compounds are reasonably represented as being close to isotropic viscoelasticity (though some thixotropic character is often found? Thus, one may express the stress tensor as an hereditary functional of the deformation history8.Q which for small deformations of these materials may be represented by the Boltzmann equationl...

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Surface friction and dynamic mechanical properties of polymers

Cited by 63 publications

References 11 publications

Rolling of a rigid ball on a horizontal deformable surface

Rolling of a rigid ball on a horizontal deformable surface

Perspectives in Materials Research

Viscoelastic and friction characteristics of polydiene, and butadiene–styrene copolymer tread compounds with application to tire dynamics

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