부산대학교 도서관

After briefly reviewing the results of a series of constant head rate tests on center-cracked “biaxial” test specimens of a particulate composite at room temperature, a second test series utilizing edge-cracked “biaxial” specimens of a particulate composite with a different particulate gradation at ambient and elevated temperatures and low and moderately high head rates is discussed. Results show different near-tip mechanisms for crack opening and growth for the two materials and, while changes in head rate and temperature produced quantitative differences in near-tip fields of displacement and strain for both materials, they did not affect the basic near-tip mechanisms of each material qualitatively.