Redesign and Strength Analysis of Retaining Wall on Passenger Train Crashworthiness Test

• Main Author: Herman David Saragih, Reynaldo
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/43590
• Institution: Institut Teknologi Bandung

A crashworthiness test is the ability of a structure to protect passengers inside it during a collision. The impact absorber structure is designed so that the structure is able to absorb impact energy effectively by deforming so that the risk of injury and injury to passengers can be minimized. In a series of tests, a crash test is performed on a train to test the amount of impact energy that can be absorbed by an impact absorber module. Retaining wall is one important component in this test. The impact absorber module will be placed on the retaining wall, so that in this assignment, the retaining wall is redesigned as a refinement of the previous design. In this assignment, a retaining wall was redesigned using Solidwork 2019 and carried out with the criteria being able to withstand an impact load of 600 kN and a collision steering system that could not be deformed. After the retaining wall design is in accordance with the design requirements, the critical point is obtained at 143 MPa with a simulation using ANSYS. The selection of bolt connections on the retaining wall uses a standard on the AISC (American Institute of Steel Construction) for 22mm ASTM A350 and A490 bolt types. Based on the combined load equation, the quadratic value of the division between the actual load and the allowable stress is 0.23 and 0.979 (<1) so that it is safe. The welded joints on the retaining wall use the standard on AWS with E70XX electrode type and 10 mm fillet type weld thickness. The calculation gives a safety factor value of 1.2.