Optimization and Experimental Testing of Car Door Handle Using 3 Point Bending Test and 3D Printing Technology

Doors are the most essential hardware used by human beings daily. Doors are used for sense of security to ourselves. To operate the door, we need door handle and it’s the most important part in door. Door handles are used for opening and closing of a door with minimum effort. Various types of door handle such as lever handle, doorknob and pull handles are the different kind of handles we came across in our day-to-day life. There are various designs of door handles are available so that we are unaware of door handles selection criteria. The aim of this work is to study different material and internal design of car door interior handle. For that purpose, we used FEA software for understanding which material and which shape have more strength and optimize design. In this project we used two different structure one is honeycomb structure and other is auxetic structure for inside section of car door interior handle. Optimized car door interior handle will be manufacture using 3D printing technology. The behaviors of these structures under three-point bending were investigated by using UTM.