The influence of temperature and delamination characteristics on the modal properties of composite sandwich beams

Abstract Understanding modal parameters is essential for analyzing the vibrational behavior of structures. This study examines the impact of temperature variations and delamination characteristics (damage position and length) on the modal properties of composite sandwich beams. Experimental modal analysis was conducted in a temperature-controlled environment ranging from − 40 °C to 80 °C. Results indicate significant effects of both extreme temperatures and delamination on modal responses. The n