Technical Paper
A Study on Reliability-Based Maximum Service Temperature Estimation of Plastic Automotive Parts
2024-04-09
2024-01-2421
Plastic materials have advantages such as low specific gravity and excellent design freedom, so they are widely applied to automotive parts. However, mechanical properties of plastic materials change very sensitively to environmental temperature changes compared to metals, and mechanical properties decrease when exposed to high temperatures. Therefore, it is important to predict the performance of plastic materials and parts when exposed to a high-temperature environment in order to assure heat resistance quality under automotive environmental temperature conditions. In this paper, reliability analysis process to estimate the maximum service temperature of plastic parts was developed using aging data of material properties, environmental condition data of automotive parts, and field driving condition data.