TY - JOUR
T1 - On Internal Cone Cracks Induced by Conical Indentation in Brittle Materials
AU - Yan, J.
AU - Karlsson, Anette M
AU - Chen, X.
N1 - Yan, J., Karlsson, A. M., and Chen, X., 2007, "On Internal Cone Cracks Induced by Conical Indentation in Brittle Materials," Engineering Fracture Mechanics, 74(16) pp. 2535-2546.
PY - 2007/11/1
Y1 - 2007/11/1
N2 - The conditions for cone cracks to develop due to a conical indentation are investigated. Axisymmetric numerical simulations, based on the finite element method, are conducted, assuming a linear-elastic, perfectly plastic material. A superposition scheme is employed to simulate a range of crack geometries, including various lengths and orientations. The results indicate that the class of cracks investigated is prone to develop internally in brittle materials. Based on a reversed analysis, a new technique is proposed for measuring the fracture toughness in bulk material and thick coatings through one simple indentation test when the cone crack appears.
AB - The conditions for cone cracks to develop due to a conical indentation are investigated. Axisymmetric numerical simulations, based on the finite element method, are conducted, assuming a linear-elastic, perfectly plastic material. A superposition scheme is employed to simulate a range of crack geometries, including various lengths and orientations. The results indicate that the class of cracks investigated is prone to develop internally in brittle materials. Based on a reversed analysis, a new technique is proposed for measuring the fracture toughness in bulk material and thick coatings through one simple indentation test when the cone crack appears.
KW - Instrumented indentation; Finite element analysis; Cone cracks
UR - https://engagedscholarship.csuohio.edu/enme_facpub/128
U2 - 10.1016/j.engfracmech.2006.12.005
DO - 10.1016/j.engfracmech.2006.12.005
M3 - Article
VL - 74
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
ER -