METHOD FOR DETERMINING DESIGN CONDITION OF VEHICLES' BUMPER CRASH BOX HAVING REINFORCEMENT PORTION, METHOD FOR MOLDING OF VEHICLES' BUMPER CRASH BOX HAVING REINFORCEMENT PORTION AND BUMPER CRASH BOX FOR VEHICLES

摘要

PURPOSE: A vehicle bumper crash box with a reinforcing unit, a molding method thereof, and a method for determining design conditions thereof are provided to easily determine design conditions by setting a reinforcing position through a virtual collision test. CONSTITUTION: A method for determining design conditions of a vehicle crash box(10) with a reinforcing unit is as follows. A collision analysis is implemented using a virtual collision simulation based on a unit value of a standard bumper crash box. Arbitrary reinforcing positions are determined by comparing a collision load value with the unit value based on the collision analysis. The collision analysis is implemented using the virtual collision simulation based on the unit value of a bumper crash box with a reinforcing unit which is set in the arbitrary reinforcing positions. An optimum reinforcing position for molding is determined based on the collision analysis.