Evaluation method for sensitivity of edge defects of high-strength steel

The invention discloses a method for evaluating the sensitivity of edge defects of high-strength steel, relates to the technical field of material detection, and solves the technical problem that the high-speed stamping rate in actual production is lacked to be simulated when the sensitivity of the edge defects is evaluated in the related technology. The method comprises the following steps: S1, taking a high-strength steel plate, shearing a plate, processing a punching material sheet, punching a round hole, measuring and recording the diameter d of the round hole and the ideal punching diameter D of a punching device, and taking a calculated value of d/D as an aperture coefficient a; S2, carrying out linear cutting on the punched material sheet to form an imitated U-shaped sample; S3, vertically standing the simulated U-shaped sample on an anvil block of a pendulum impact testing machine, carrying out an impact test, and recording impact energy k; S4, calculating a corrected impact energy numerical value kco