Jihong Choi and Sangkee Min
Sponsored by CODEF
Abstract- With increases in the use of multi-layered materials in the
aerospace industry to reduce weight while still meeting strength requirements,
the study of inter-layer burr formation in drilling of a multi-layered
material becomes more important. Inter-layer gap formation due to material
bending by drilling thrust force has significant effect on inter-layer
burr formation. A finite element model for inter-layer gap formation
in a multi-layered material was proposed. A gap formation was initiated
by initial difference in elastic bending of layers and developed by
plastic deformation of the first layer.
Keywords: Gap formation, Finite element method (FEM), Multi-layered
material.
View the entire report:
PDF
Go Back
to the 2002 Index
