Damage Assessment in Thin Materials: Finite Element Investigation
Independent thesis Advanced level (degree of Master (One Year))Student thesis
This thesis describes the process of detection, and if possible, also localization of the damage in non structural sheet-like materials. Simulation and analysis is carried out in ABAQUS with a FE model that has the same dynamic characteristics as the corresponding real material. Three types of damage forms are investigated: crack, hole and local weakness. Results presented in the report show that global damage detection and localization in sheet-like structure by monitoring changes in the modal parameters is possible. Based on the results, this thesis provides a basis for development of global non-destructive health monitoring methods for materials having no bending stiffness.
Place, publisher, year, edition, pages
2006. , 72 p.
NDT, Finite Element, ABAQUS, Damage Assessment, Eigenvalue, Stiffness
IdentifiersURN: urn:nbn:se:bth-6009Local ID: oai:bth.se:arkivexD8482272EAAC3CE6C1257104006C2E7AOAI: oai:DiVA.org:bth-6009DiVA: diva2:833425
Mfoumou, M.Sc Mech. Eng. Etienne