Advanced miniature mixed mode bending setup for in-situ interface delamination characterization

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Samenvatting

A novel test frame configuration was developed and employed to design a new miniature mixed mode bending (MMMB) setup for in-situ characterization of interface delamination in miniature multi-layer structures to accomplish full range of mode mixities. This advanced setup is specially designed with sufficiently small dimensions to fit in a scanning electron microscope and under an optical microscope for detailed real-time fracture analysis during delamination. Analysis of the loads in the new test configuration was performed and a special loading configuration was identified which replicates pure mode II loading better than the conventional end notch flexure (ENF) test. Special care was taken to minimize non-linearities, such as friction, the influence of gravity and geometrical non-linearities. Finite element simulation of the designed setup were performed to show its ability to access all loading modes. Preliminary delamination tests conducted on homogeneous bilayer samples under scanning electron microscope (SEM) proved the new setup configuration is capable of measuring the crack length, crack opening profile and crack delamination mechanism in addition to the conventional energy release rate measurements. ©2008 Society for Experimental Mechanics Inc
Originele taal-2Engels
Titel11th International Congress and Exhibition on Experimental and Applied Mechanics 2008
Plaats van productieBethel, Conn.
UitgeverijSociety for Experimental Mechanics
Pagina's176-182
Volume1
ISBN van geprinte versie9781605604152
StatusGepubliceerd - 2008
Evenement11th International Congress and Exhibition on Experimental and Applied Mechanics - Orlando, Verenigde Staten van Amerika
Duur: 2 jun 20085 jun 2008

Congres

Congres11th International Congress and Exhibition on Experimental and Applied Mechanics
LandVerenigde Staten van Amerika
StadOrlando
Periode2/06/085/06/08
Ander11th International Congress and Exhibition on Experimental and Applied Mechanics 2008, orlando, Florida

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Citeer dit

Hoefnagels, J. P. M., Kolluri, M., Thissen, M. H. L., Dommelen, van, J. A. W., & Geers, M. G. D. (2008). Advanced miniature mixed mode bending setup for in-situ interface delamination characterization. In 11th International Congress and Exhibition on Experimental and Applied Mechanics 2008 (Vol. 1, blz. 176-182). Bethel, Conn.: Society for Experimental Mechanics.