Abstract
This paper presents an experimental investigation on mode I delamination of z-pinned double-cantilever-beams (DCB) and associate z-pin bridging mechanisms. Tests were performed with three types of samples: big-pin with an areal density of 2%, small-pin with an areal density of 2% and small-pin with an areal density of 0.5%. The loading rates for each type of samples were set at 1 mm/min and 100 mm/min. Comparison of fracture load under different loading rates shows the rate effects on delamination crack opening and delamination growth. Optical micrographs of z-pins after pullout were also presented to identify the bridging mechanisms of z-pins under different loading rates.
| Original language | English |
|---|---|
| Pages (from-to) | 1294-1301 |
| Number of pages | 8 |
| Journal | Composites Science and Technology |
| Volume | 67 |
| Issue number | 7-8 |
| DOIs | |
| Publication status | Published - Jun 2007 |
| Externally published | Yes |
Keywords
- A. Z-Pin reinforcement
- C. Z-Pin bridging law
- D. DCB mode I delamination
- D. Loading rate
ASJC Scopus subject areas
- Ceramics and Composites
- General Engineering
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