A new hydride reorientation model is presented for spent fuel dry storage conditions. The model takes into account the coupled influence of external stresses, alloy texture, temperature cycling and cooling rate. The model has been tested successfully against experiments in a wide range of conditions. The features of the model are the use of kinetic equations and the simulating of such processes as hydride memory effect and possible hydrogen redistribution between hydrides of different orientations. Current version of the model will be used for safety justification of dry storage conditions.

中文翻译：

---

干存储过程中乏燃料包壳中氢行为的建模

针对乏燃料干式储存条件，提出了一种新的氢化物重新定向模型。该模型考虑了外部应力，合金组织，温度循环和冷却速率的耦合影响。该模型已针对各种条件下的实验成功进行了测试。该模型的特征是使用动力学方程式以及模拟氢化物记忆效应以及不同方向的氢化物之间可能的氢重新分布等过程。该模型的当前版本将用于干燥存储条件的安全证明。