<p>This research paper investigates the complex behavior of a multilayer triangular plate reinforced with rigid metal, comparing its performance to traditional composite materials. It provides a thorough analysis of the thermal buckling behavior of the layered plate under diverse conditions, highlighting the critical role of delamination in influencing structural integrity. The study meticulously examines how delamination, or its absence, affects the plate’s stability, as well as the impact of triangular cross-ply configurations and variations in plate thickness. The findings offer valuable insights into the interplay between multilayer material arrangements and delamination, emphasizing their significant effects on the post-buckling performance of the plate. Additionally, the research explores divergence and flutter instabilities, shedding light on their implications for overall structural stability. A notable aspect of this study is the emphasis on embedded metal plates, which are shown to significantly enhance the performance and resilience of composite plates. In conclusion, the paper underscores the advantages of multilayer configurations, particularly in applications requiring exceptional performance and stability.</p>