#TITLE_ALTERNATIVE#

• Main Author: PRASOJO (NIM 13601031), EMMANUEL
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/10342
• Institution: Institut Teknologi Bandung

Energy absorption structures are structure that able to transform the kinetic energy into deformation energy whether it's reversible or irreversible. The energy absorption structures are commonly used as safety guarantee measure. The aim of studying energy absorption is to get optimal geometry and efficient usages.<p> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> This final project is studying about irreversible energy absorption of thin-walled aluminum tubes with holes trigger using numerical method. The tube made of aluminum with 60 mm and 100 mm diameters and each has 4 holes trigger at the bottom part. The holes are introduced in the tubes to force plastic deformation to occur at predetermined intervals along the tube. The aims are controlling the buckling mode and predicting energy absorption capacity of the tubes. The tubes and quasi-static longitudinal load are modeled using ABAQUS, a finite element based software, and then the result data are studied and compared with experimental method and analytical method. From the compared result, it's found that the load-displacement plot's and the amount energy absorbed are quite similar. The result indicates that the load-displacement curve and energy absorbed by the tubes could be controlled by the introduction of holes trigger.