A review of the basic theories of scaling in solid mechanics is sented. The problem of scaling is approached through dimensional analysis, laws of thermodynamics and asymptotic matching. Defini- tive conclusions on the relative importance of various sources of size…
A review of the basic theories of scaling in solid mechanics is sented. The problem of scaling is approached through dimensional analysis, laws of thermodynamics and asymptotic matching. Defini- tive conclusions on the relative importance of various sources of size effect (energy release, iVeibull statistics, and crack fractality) are drawn. The size effect laws for crack initiation from smooth surface and for both cracked and uncracked specimens are presented. simpler, one-size version of the size effect method of fracture en- ergy testing is proposed. Finally, promising research directions are pointed out.