Endurance Test and Dynamic Three-Dimensional DIC Analysis of Outer Case of Electric Vehicle Motors

User Benefits

- It is possible to analyze the actual strain distribution of modules and automotive parts without processing test specimens. - Graphs and color mapping display are possible by synchronizing the testing machine signal (test force and stroke) and DIC analysis results. - Strain (longitudinal, transverse, shear, principal) and displacement can be measured at any point.

Introduction

In recent years, the trend toward decarbonization has accelerated to reduce greenhouse gas emissions. In particular, the shift to electric vehicles (EVs) in the automobile industry is playing a major role in realizing a decarbonized society. To reduce the weight of EVs, major automobile parts are manufactured with aluminum die castings, which are light and durable. The aluminum alloys used in die casting have low viscosity and tend to have internal defects, so they need to be designed with cracking in mind. These parts are molded into thinner and more complex shapes to further reduce weight, and are subjected to continuous high-speed rotation and vibration during actual driving. Therefore, durability is required, and it is important to observe the dynamic deformation state. In this article, an example of an endurance test and a dynamic three-dimensional DIC analysis of a motor outer case (motor housing) used in EVs is introduced.

March 12, 2025 GMT