The Progressive Partition Method to Identify Damage of Single-Layer Reticulated Shell

Abstract

For the damage location in the existing damage identification methods, this paper adopts the progressive partition method in view of the modal strain energy to locate and evaluate the bars’ damage degree in the K8 single-layer reticulated shell model. Through the correlation between damage identification index and damage degree, the location and damage degree of damage element can be precisely determined. Meanwhile, this method can effectively improve the anti-noise performance in the damage identification of structural, and determine the key elements for the overall stability of single-layer reticulated shells under specific loads. The research provides a basis for the diagnosis and reinforcement of damaged structure.