In-situ characterization of interface delamination by a new miniature mixed mode bending setup

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

24 Citaten (Scopus)
2 Downloads (Pure)

Samenvatting

A new miniature mixed mode bending (MMMB) setup for in-situ characterization of interface delamination in miniature multi-layer structures was designed and realized. This setup consists of a novel test configuration to accomplish the full range of mode mixities and was specially designed with sufficiently small dimensions to fit in the chamber of a scanning electron microscope (SEM) or under an optical microscope for detailed real-time fracture analysis during delamination. Special care was taken to minimize the effects of friction, the influence of gravity, and non-linearities due to the geometry of the setup. The performance of the setup was assessed using specially-designed test samples supported by finite element analyses. Delamination experiments conducted on homogeneous bilayer samples in mode I and mixed mode loading were visualized with a scanning electron microscope and showed the formation of small micro cracks ahead of the crack tip followed by crack bridging and a full crack, thereby demonstrating the advantages of in-situ testing to reveal the microscopic delamination mechanism.
Originele taal-2Engels
Pagina's (van-tot)183-195
TijdschriftInternational Journal of Fracture
Volume158
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 2009

Vingerafdruk Duik in de onderzoeksthema's van 'In-situ characterization of interface delamination by a new miniature mixed mode bending setup'. Samen vormen ze een unieke vingerafdruk.

  • Citeer dit