TY - JOUR
T1 - Dynamic Effects on Fracture Surface Formation in Brittle Polymers (2nd Report, Examination of Surface Markings)
AU - Arakawa, Kazuo
AU - Takahashi, Kiyoshi
PY - 1987
Y1 - 1987
N2 - The dynamic fracture surface formation of PMMA and epoxy was studied. Fracture parameters such as crack velocity a and crack extension resistance R∗ were obtained by high-speed photography of fracture caustic images. The density of surface marking was also obtained by examination of the fracture surfaces. Correlations between the density,μ and the fracture parameters have shown that, although μ depends on a or on R∗, μ is not a unique function of one of those parameters. It is found that μ has the best correlation with the product R∗-d, i. e. dissipated energy per unit crack front and unit time.
AB - The dynamic fracture surface formation of PMMA and epoxy was studied. Fracture parameters such as crack velocity a and crack extension resistance R∗ were obtained by high-speed photography of fracture caustic images. The density of surface marking was also obtained by examination of the fracture surfaces. Correlations between the density,μ and the fracture parameters have shown that, although μ depends on a or on R∗, μ is not a unique function of one of those parameters. It is found that μ has the best correlation with the product R∗-d, i. e. dissipated energy per unit crack front and unit time.
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U2 - 10.1299/kikaia.53.2128
DO - 10.1299/kikaia.53.2128
M3 - Article
AN - SCOPUS:0023451249
SN - 0387-5008
VL - 53
SP - 2128
EP - 2133
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
IS - 495
ER -