规范断裂
规范断裂
通过疲劳损伤准则,导出疲劳裂纹稳定扩展速率的计算公式。
The calculated method of crack extension of arch DAMS is proposed using this strength criterion and finite element discrete crack model, and with some practical examples given.运用上述强度准则及有限元分离裂缝模型提出了拱坝开裂的计算方法,并给出了应用实例。
Based on analyzing the mechanism of destabilization of crack in dam, the mutation model is established by use of catastrophe theory, and the criterion of the stability of crack is given.在研究裂缝失稳机理及特征的基础上,应用突变理论,建立了裂缝的突变模型,并得出裂缝稳定性的判据。