Damage degree identification method based on strain mode and structural optimization

作者：Peng Xi Rong^*; Lu Xin Ying; Sui Yun Kang; Chen Zhao Yuan

来源：Journal of Beijing University of Technology, 2009, 35(2): 145-151.

• Damage degree
• Damaged regions
• Damaged structures
• Design variables
• Identification methods
• Local strains
• Numerical simulations
• Structural damages
• Structural identification problem

Structural damages are identified by the technique of structural optimization. In the damaged region, elemental damage indexes are selected as design variables, local strain mode difference between undamaged and damaged structure is minimized. The structural identification model is solved by the series linear programming. The solution is the distribution of elemental damage indexes in the damaged region. Numerical simulation indicated that the proposed method could locate damages and estimate damage degree correctly.

• 出版日期2009
• 单位清华大学