Load Characteristic of Center Bevel Cutter Indented on Paperboard with Orthotropic Properties and Strain Dependency

Abstract

This paper reports about cutting load characteristic and deformation behavior of coated paperboard during indentation of a trapezoidal center bevel cutter. The cutter indentation was simulated numerically by using elastic finite element analysis in the initial compression stage without any cracks or fractures. By investigating the uniform compressive testing of paperboard in the thickness direction, the equivalent orthotropic moduli, included the strain dependency, were derived experimentally and applied to the numerical analysis model. Through this analysis, it has been revealed that the magnitude of the first peak load, being caused by the surface layer breaking of paperboard, is related remarkably to In-plane mechanical properties such as the tensile strength in the surface layer. On the contrary, it has been found that the equivalent moduli of the thickness direction characterizes primarily the cutter load response in the initial compression stage.