Comparative Analysis of Thermal Performance in Bolted Joints: A Finite Element Simulation and Experimental Study

Abstract

This study investigates the influence of material properties on temperature distribution and transient behavior in bolted joints made from carbon steel (S45C), stainless steel (SUS304), and aluminum alloy (A2024). Finite element simulations, incorporating convection and radiation heat transfer, were performed and compared with experimental data to validate the model and gain insights into the thermal behavior of these joints. Results revealed a strong correlation between thermal conductivity and temperature distribution, with materials having higher conductivity, such as aluminum alloy, exhibiting more uniform temperature distributions due to rapid and even heat transfer throughout the material. Conversely, materials with lower thermal conductivity displayed larger temperature variations across their surfaces. Both simulation and experimental results demonstrated a decreasing rate of temperature change over time, emphasizing the significance of material properties in determining the thermal performance of bolted joints. The findings from this research contribute to a better understanding of the factors governing heat transfer in bolted joints and offer valuable insights for optimizing their design and applications in various industries.