2024 : 6 : 18
Mohsen Bozorgnasab

Mohsen Bozorgnasab

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Faculty of Technology and Engineering
Address:
Phone: 011-35302903

Research

Title
A novel method for identification of damage location in frame structures using a modal parameters-based indicator
Type
JournalPaper
Keywords
damage detection, frame, modal parameters, mechanical failure, finite element model
Year
2022
Journal ARCHIVES OF CIVIL ENGINEERING
DOI
Researchers Mina Roodgar Nashta ، reza taghipour ، Mohsen Bozorgnasab ، hessam Mirgolbabaei

Abstract

Diverse strategies for identifying and finding the damages in structures have been continuously engaging to originators within the field. Due to the direct connection between the firmness, characteristic frequency, and mode shapes within the structure, the modular parameters may well be utilized for recognizing and finding the damages in structures. In current consider, a modern damage marker named Damage Localization Index (DLI) is applied, utilizing the mode shapes and their derivative. A finite element model of a frame with twenty and thirty components has been utilized, separately. The numerical model is confirmed based on experimental information. The indicator has been explored for the damaged components of a frame with one bay. The results have been compared with those of the well-known index CDF. To demonstrate the capability and exactness of the proposed method, the damages with low seriousness at different areas of the structures are explored. The results are investigated in noisy condition, considering 3% and 5% noise on modal data. The outcomes show the high level of accuracy of the proposed method for identifying the location of the damaged elements in frames