An intersonic slip pulse at a frictional interface between dissimilar materials. Adams, G. G. J. Appl. Mech., 68:81--86, Jan, 2001.
abstract   bibtex   
Two homogeneous and isotropic elastic half-spaces are acted upon by remote normal and shear tractions. The applied shear stress is less than that which is required to produce overall sliding of the two bodies. The possible existence of a slip pulse is investigated, i.e., a finite-width region, on the interface, of altered normal and shear stress which satisfies the Amontons-Coulomb law of friction. Pulses which travel at a speed which is greater than the minimum shear wave speed and less than the maximum dilatational wave of the two bodies, ave of interest in this investigation. Such pulses are shown to exist for sufficient friction and for modest mismatches in material combinations. The pulse is weakly singular at the leading edge and bounded at the trailing edge. Furthermore it travels at speeds just below the lesser dilatational wave speed and in the opposite direction of sliding of the lower wave-speed material. In addition, a pair of equations ave given which relate the interfacial normal and shear stress to the interfacial slip velocity. These relations are analogous to the subsonic results of Weertman, but are valid for an arbitrary speed range.
@article{adams2001,
	Abstract = {Two homogeneous and isotropic elastic half-spaces are
acted upon by remote normal
and shear tractions. The applied shear stress is less than that which is
required to produce overall
sliding of the two bodies. The possible existence of a slip pulse is
investigated, i.e., a
finite-width region, on the interface, of altered normal and shear
stress which satisfies the
Amontons-Coulomb law of friction. Pulses which travel at a speed which
is greater than the minimum
shear wave speed and less than the maximum dilatational wave of the two
bodies, ave of interest in
this investigation. Such pulses are shown to exist for sufficient
friction and for modest mismatches
in material combinations. The pulse is weakly singular at the leading
edge and bounded at the
trailing edge. Furthermore it travels at speeds just below the lesser
dilatational wave speed and in
the opposite direction of sliding of the lower wave-speed material. In
addition, a pair of equations
ave given which relate the interfacial normal and shear stress to the
interfacial slip velocity.
These relations are analogous to the subsonic results of Weertman, but
are valid for an arbitrary
speed range.},
	Author = {Adams, G. G.},
	Date-Modified = {2010-07-14 12:17:38 -0700},
	Issue = {1},
	Journal = {J. Appl. Mech.},
	Month = {Jan},
	Pages = {81--86},
	Title = {An intersonic slip pulse at a frictional interface between dissimilar materials},
	Volume = {68},
	Year = {2001},
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