R. Thiruvengadaswamy et Ro. Scattergood, INDENTATION-CYCLING TESTS ON SODA LIME GLASS, Journal of the American Ceramic Society, 76(6), 1993, pp. 1611-1614
Repeated indentation loading produces lateral-crack-controlled chippin
g in brittle materials. This has been investigated in soda-lime glass
for a load-cycling range P(min) < P(max) less-than-or-equal-to P, wher
e P is the indentation load. Extensive chipping damage occurs after a
critical number of cycles for P(max) = P and P(min) = 0, whereas subcr
itical cycling with P(min) > 0 suppresses the failures. This is consis
tent with an environmental interaction. Postcycling aging can produce
delayed chipping, and the response depends upon the load-cycling histo
ry.