sizeeffect
Size effect is the systematic change in a property of a system as the size of the sample or structure changes. In materials science and fracture mechanics, it most often refers to the observed decrease in apparent strength of brittle materials as specimen size increases. The effect arises because larger volumes or areas are more likely to contain a critically weak flaw, so the probability of failure at a given stress rises with size.
A statistical description underpins many size-effect interpretations. Weibull statistics model the distribution of flaws within a
In practice, size effect influences design and testing. Standards may apply size corrections or use scaled