Abstract
Indentation test has the usefulness to evaluate the non-linear behavior of the materials which have complicated mesoscopic and microscopic structure because they have the difficulties m the machining of test specimen. Then the trial results of indentation test for low-density porous material, which is one of typical material with mesoscopic structure, are shown in this report. The results indicate obvious difference from the results of normal elastic material, and show possibility of the indentation test to represent the non-linear behavior of the materials with the complicated structures.
