Relation between Cutting Resistance and Crack Progress (Part2)

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  • 切断抵抗とき裂進展の関係（第2報）

Abstract

<p>When materials are cut with a knife, cutting resistance is a combination of (1) the reaction force (compressive) and (2) the frictional force between the knife edge and materials. When cutting resin material, the frictional force is dominant. Meanwhile, in the field of fracture mechanics, crack progress possibility is evaluated by the stress intensity factor which is calculated from energy release rate around crack tip. In this context, the relation between the calculated and measured cutting resistance are investigated, of which results are reported in this paper.</p>

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