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Analysis of interfacial stresses for elastomeric disks in compression
Author(s) -
Thornton J. S.,
Montgomery R. E.,
Thompson C. M.,
Dillard D. A.
Publication year - 1988
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760281004
Subject(s) - elastomer , materials science , natural rubber , compression (physics) , mechanics , flow (mathematics) , radius , frictional coefficient , coulomb , friction coefficient , composite material , physics , computer science , computer security , quantum mechanics , electron
Relatively simple forms have been derived for obtaining the total force required to deflect a circular rubber disk of arbitrary dimensions between two rigid platens which offer Coulomb frictional resistance to flow of the rubber. The calculation of the critical radius which separates the regions of frictional adherence and restrained flow is a necessary step in the solution process. Although it cannot be solved for explicitly, an implicit form given herein converged rapidly. The solutions for force can involve differences between very large numbers as the coefficient of friction becomes small. Care should be used to evaluate these quantities in order to avoid round off errors.