Numerical simulation of a manual rebar shear based on ANSYS/LS-DYNA

In the current production of pipe piles, the main process of the rebar cage forming involves cutting rebar to fixed lengths, forming the pile head, and welding by rolling. The enterprise has identified low automation and efficiency in the rebar cutting process. This article discusses the cutting method of a hand-held rebar cutter, establishes a finite element model for rebar cutting, and conducts dynamic simulations of the cutting process. By adjusting various parameters, the impact of different factors on the cutting force is analyzed. The results indicate that the minimum cutting force is achieved when the blade angle is set at 2°, and the cutting force reaches its lowest point when the blade clearance is 0.35mm. This document serves as a reference for designing and installing the rebar cutter.