TY - JOUR
T1 - A Study on the Static Tensile Strength of Notched CFRP Specimens
AU - Nisitani, Hironobu
AU - Kim, Yun Hae
AU - Yamaguchi, Terutaka
AU - Noguchi, Hiroshi
PY - 1991
Y1 - 1991
N2 - In this study, the static tensile tests of Polyethernitrile (ID 300) and CFRP in which the carbon fiber was combined in an ID 300 resin matrix with a fiber content of 30 %, by weight, were done by using smooth and notched specimens at room temperature. The results were discussed based on linear notch mechanics. The relation σ∞-1/ρ is to be classified into two parts, namely, a part where σ∞ decreases with decreasing ρ and a part where σ∞ is nearly constant regardless of ρ (σ∞: nominal stress at infinity, ρ: notch tip radius). The similar phenomenon can be seen in the fatigue tests of notched specimens under rotating bending or push-pull. The fracture of ID 300 and CFRP specimens is controlled by the elastic maximum stress, σmaxc and the notch tip radius, p, alone, independently of the other geometrical conditions. Linear notch mechanics is very useful for analyzing the static tensile fracture behavior of the notched ID 300 and CFRP specimens.
AB - In this study, the static tensile tests of Polyethernitrile (ID 300) and CFRP in which the carbon fiber was combined in an ID 300 resin matrix with a fiber content of 30 %, by weight, were done by using smooth and notched specimens at room temperature. The results were discussed based on linear notch mechanics. The relation σ∞-1/ρ is to be classified into two parts, namely, a part where σ∞ decreases with decreasing ρ and a part where σ∞ is nearly constant regardless of ρ (σ∞: nominal stress at infinity, ρ: notch tip radius). The similar phenomenon can be seen in the fatigue tests of notched specimens under rotating bending or push-pull. The fracture of ID 300 and CFRP specimens is controlled by the elastic maximum stress, σmaxc and the notch tip radius, p, alone, independently of the other geometrical conditions. Linear notch mechanics is very useful for analyzing the static tensile fracture behavior of the notched ID 300 and CFRP specimens.
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U2 - 10.1299/kikaia.57.1643
DO - 10.1299/kikaia.57.1643
M3 - Article
AN - SCOPUS:0026189890
VL - 57
SP - 1643
EP - 1647
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
SN - 0387-5008
IS - 539
ER -