ABSTRACT

A 3D Finite Element Analysis model was developed to describe the temperature distribution inside a novel neutron transparent high-pressure sample assembly. The validity of the model was established by conducting experimental validation. The Finite Element Analysis model was utilised to evaluate the sample assembly’s temperature gradients and optimise its geometry and components. The results indicate that the discrepancy between the temperature recorded in the laboratory using thermocouples and the temperature calculated by the Finite Element Analysis model was only 4% under the assumption that the thermocouple was positioned in the middle of the sample assembly. The models further demonstrate that the Finite Element Analysis approach is a valuable tool for optimising the sample assembly by considering the impact of different materials and variations in the shape of its components.

摘要

开发了 3D 有限元分析模型来描述新型中子透明高压样品组件内的温度分布。通过实验验证建立了模型的有效性。有限元分析模型用于评估样品组件的温度梯度并优化其几何形状和组件。结果表明，假设热电偶位于样品组件的中间，实验室使用热电偶记录的温度与有限元分析模型计算的温度之间的差异仅为 4%。