NUMERICAL MODELLING OF DYNAMIC LOAD EFFECTS ON GEODESIC DOMES: LOCAL DAMAGE DETECTION


Kılınç M., Shırwa A. M.

4. BASKENT INTERNATIONAL CONFERENCE ON MULTIDISCIPLINARY STUDIES, Ankara, Türkiye, 4 - 06 Ağustos 2023, ss.528, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Ankara
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.528
  • Erciyes Üniversitesi Adresli: Evet

Özet

Geodesic domes have gained significant attention in contemporary architecture and engineering due to their visually appealing design and structural efficiency. However, a comprehensive understanding of their dynamic behavior under varying loads is essential. In this research, a rigorous numerical study that specifically focuses on the dynamic load effects of geodesic domes is presented and a novel method for local damage detection is proposed. A three-dimensional finite element model is utilized to simulate the dynamic response of geodesic domes under dynamic loads. The model is calibrated using precise material properties to ensure that it accurately represents real-world structures. Numerical simulations are conducted on regions prone to local damage. Vibration-based damage detection techniques is employed to identify areas with increased stress concentrations and potential weaknesses. The results revealed that certain dome regions exhibited amplified stresses and  deformation patterns, providing valuable insights into local damage initiation. Based on these findings, our proposed methodology utilizes modal characteristics, natural frequencies, and mode shapes for precise damage detection. Monitoring changes in these parameters enables early detection, facilitating timely maintenance and reducing catastrophic risks. This study significantly contributes to the understanding of geodesic dome dynamic properties and offers a robust numerical framework for local damage detection.