Abstract
Currently, prediction of interface strength is typically done using the critical energy release rate. Interface strength, however, is heavily dependent on mode mixity. Accurately predicting delamination therefore requires a material model that includes the mode dependency of interface strength. A novel test setup is designed which allows mixed mode delamination testing. The setup is a stabilized version of the mixed mode bending test previously described by Reeder and Crews (1990; 1991). It allows for the measurement of stable crack growth over the full range of mode mixities, using a single specimen design. The crack length, necessary for calculation of the energy release rate, is obtained from an analytical model. Crack length and displacement data are used in a finite element model containing a crack tip to calculate the mode mixity
Original language | English |
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Title of host publication | Proceedings of the 56th Electronic Components and Technology Conference (ECTC 2006), May 30 - June 2, 2006, San Diego, California, USA |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1882-1886 |
ISBN (Print) | 1-4244-0152-6 |
DOIs | |
Publication status | Published - 2006 |