BENDING TEST SYSTEM OF SIDE DOOR IMPACT BAR FOR VEHICLE

摘要

PURPOSE: A bending testing apparatus is provided to reduce cost by allowing the bending test to be performed through the use of a single piece of impact bar, without using a finished vehicle or a door trim mounted vehicle. CONSTITUTION: A bending testing apparatus comprises a main body(1); a bottom board(10) disposed perpendicular to the main body and horizontal to the ground; a conveying unit(6) arranged onto the bottom board with a roller(11) interposed between the conveying unit and the bottom board, wherein the conveying unit is welded in a method similar to the method of mounting impact bar to the door; a steering handle(7) disposed at both sides of the conveying unit with a spring(8) interposed between the steering handle and the conveying unit, wherein the steering handle adjusts such that the center of the impact bar corresponds to the center of the conveying unit; a hydraulic cylinder(3) for moving the conveying unit toward the impact bar; a displacement gauge(5) and a load cell(4) for measuring displacement and load when the conveying unit is moving inward by the roller and applied with a pressure of spring; and a data output unit for outputting a graphical representation showing a displacement to load with respect to an initial resistance, in accordance with the result of measurement of the displacement gauge and the load cell.