TY - JOUR
T1 - Modelling edge chipping in flint knapping, cutting tools and sharp teeth using a trapezoidal prism structure
AU - Chai, Herzl
N1 - Publisher Copyright:
© 2016
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Edge chipping tests were performed on trapezoidal prisms made of soda-lime glass and two rock materials, and the evolution of damage observed in-situ. The indent distance H and specimen's wedge and surface inclination angles α and θ were systematically varied. The configuration used, distinguished by two free surfaces interacting with the chipping crack, yielded the type of chip morphology commonly found in such applications as flint knapping, material shaping tools and some dental teeth. The tests were complemented by a fracture mechanics analysis incorporating all system variables as well as load orientation angle ϕ. The analysis produced closed-form analytical expressions that predicted reasonably well the chip dimensions and chipping force. The results presented provide useful insight into such aspects as the mechanics behind rock shaping, fracture prevention in material shaping tools and bite force of some mammals and sharp-teeth fish based on inspection of chipped fossil teeth.
AB - Edge chipping tests were performed on trapezoidal prisms made of soda-lime glass and two rock materials, and the evolution of damage observed in-situ. The indent distance H and specimen's wedge and surface inclination angles α and θ were systematically varied. The configuration used, distinguished by two free surfaces interacting with the chipping crack, yielded the type of chip morphology commonly found in such applications as flint knapping, material shaping tools and some dental teeth. The tests were complemented by a fracture mechanics analysis incorporating all system variables as well as load orientation angle ϕ. The analysis produced closed-form analytical expressions that predicted reasonably well the chip dimensions and chipping force. The results presented provide useful insight into such aspects as the mechanics behind rock shaping, fracture prevention in material shaping tools and bite force of some mammals and sharp-teeth fish based on inspection of chipped fossil teeth.
KW - Cutting tools
KW - Dental teeth
KW - Edge chipping
KW - Flake morphology
KW - Flint knapping
UR - http://www.scopus.com/inward/record.url?scp=85006282760&partnerID=8YFLogxK
U2 - 10.1016/j.ijsolstr.2016.11.011
DO - 10.1016/j.ijsolstr.2016.11.011
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AN - SCOPUS:85006282760
SN - 0020-7683
VL - 104-105
SP - 1
EP - 7
JO - International Journal of Solids and Structures
JF - International Journal of Solids and Structures
ER -