Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
FAILURE ANALYSIS BY NUMERICAL SIMULATION OF A CRANKSHAFT MODEL MWM 229
Submission Author:
Thiago Figueiredo Azevedo , AL , Brazil
Co-Authors:
Evandro Santos, Michele Rayany, Wallisson Silva , Weslley Sampaio, Thiago Figueiredo Azevedo, Matheus Silva
Presenter: Evandro Santos
doi://10.26678/ABCM.COBEM2019.COB2019-2444
Abstract
Crankshafts are important components for the operation of internal combustion engines, compressors, etc. The premature failure of these components may lead to serious damage or accidents. The failure analysis search causes that resulted in failure of engineering products or components, aiming at the improvement of new products and minimizing these possible causes of failures. The failures can be classified in different situations: design, material, manufacturing process or even an improper operation. The Numerical Simulation is a new tool that has been used in these failures checking operations, aiding in the prediction of the behavior of the equipment currently being applied for solving mechanical problems or even before any physical prototype is tested. Along with the simulation, failure analysis is considered a tool of project optimization. Therefore, the objective of this study is the failure analysis of a crankshaft model MWM 229 by Numerical Simulation. In the crankshaft was identified the region of onset and the micromechanisms of fracture. The crankshaft has an incorrect machining, and this error is suspected of having caused a change of section that could act as a stress concentrator and encourage the beginning of the failure.
Keywords
Numerical simulation, failure analysis, crankshafts, microstructural characterization
