강관의 전단에 관한 연구

A guillotine type shearing of a steel pipe has been investigated by means of energy method. The term guillotine means shearing of material with shear blade's up and down motion that gives a high speed and easy cut. In this study, shear forces of a pipe with different semi-angles (30°, 45° and 60°) of shear blade are calculated using energy method. According to the analysis, 45° semi-angle shear blade give the lowest shear force. The experimentally measured shear force of shearing a φ35 steel pipe using 45° semi-angle shear blade show a good agreement with calculated shear force. As a result, it might be possible to design a guillotine type shearing system of steel pipe on the basis of shear force calculated by energy method.