This book comprises the select proceedings from the 2nd International Conference on Structural Damage Modelling and Assessment (SDMA 2021) held in the city of Ghent, Belgium, on 4-5 August 2021. It discusses the recent advances in fields related to damage modelling, damage detection and assessment, non-destructive testing and evaluation, structure integrity and structural health monitoring. The conference covers all research topics and applications relevant to structural damage modelling and assessment using theoretical, numerical and experimental techniques. This book is useful to scientists and engineers in academia and industry who are interested in the field of structural damage and integrity.