TY - JOUR
T1 - Effects of hydrostatic tension on cleavage fracture of pure polycrystalline zinc
AU - Curry, D.A.
AU - King, J.E.
AU - Knott, J.F.
PY - 1978/5/1
Y1 - 1978/5/1
N2 - A study was made of notch effects on the cleavage fracture of polycrystalline zinc. It was seen that the nominal fracture stress of SENB specimens was independent of notch angle. The maximum tensile stress below the notch at fracture in SENB specimens was shown to be different from the tensile stress at fracture in tensile testpieces over a temperature range from −196 to −17°C. The notch root strain at fracture was found to be the same as the uniaxial tensile fracture strain over this temperature interval. These results were interpreted as showing the cleavage fracture of polycrystalline zinc to be shear-stress or initiation controlled, as predicted by Stroh's dislocation model of cleavage.
AB - A study was made of notch effects on the cleavage fracture of polycrystalline zinc. It was seen that the nominal fracture stress of SENB specimens was independent of notch angle. The maximum tensile stress below the notch at fracture in SENB specimens was shown to be different from the tensile stress at fracture in tensile testpieces over a temperature range from −196 to −17°C. The notch root strain at fracture was found to be the same as the uniaxial tensile fracture strain over this temperature interval. These results were interpreted as showing the cleavage fracture of polycrystalline zinc to be shear-stress or initiation controlled, as predicted by Stroh's dislocation model of cleavage.
KW - zinc and alloys
UR - http://www.scopus.com/inward/record.url?scp=0017969370&partnerID=8YFLogxK
UR - http://www.maneyonline.com/doi/abs/10.1179/msc.1978.12.5.247
U2 - 10.1179/msc.1978.12.5.247
DO - 10.1179/msc.1978.12.5.247
M3 - Article
SN - 1389-9244
VL - 12
SP - 247
EP - 250
JO - Medium Econometrische Toepassingen
JF - Medium Econometrische Toepassingen
IS - 5
ER -