切断抵抗とき裂進展の関係

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書誌事項

タイトル別名
  • Relation between Cutting Resistance and Crack Progress
  • (Measurement : Axial Torque and Cutter Strain)
  • （軸トルク計測およびカッター歪み計測）

抄録

<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 evaluated through the measurement of dynamic strain distribution of cutter surface by the Digital Image Correlation. The results are reported herein after.</p>

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