Abstract
An experimental determination of the remaining strength of
glued-in bolts after 9 years is presented. The hollow tapered
bolts served as the blade to rotor hub connection of a windmill
with wooden blades. The test method is presented along with the
load history of the bolts, the recorded residual strength, the
observed fracture modes and the force displacements curves. A
total of 11 bolts were pulled out between undamaged bolts. The
mean strength was found to be 362 kN with a standard deviation of
37 kN. This residual strength is 95% of previously recorded data.
At fracture, a displacement between 0.4 mm and 1.0 mm was
observed. In the majority of failures the bolts were pulled out
like a cork from a bottle. A FEM-analysis confirms the higher load
bearing capacity of the special hollowed tapered bolts compared to
solid bolts.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International Wood Engineering Conference, Volume 4 |
| Place of Publication | Madison |
| Publisher | Omnipress |
| Publication date | 1996 |
| Pages | 496-503 |
| Publication status | Published - 1996 |
| Event | International Wood Engineering Conference - New Orleans Duration: 1 Jan 1996 → … |
Conference
| Conference | International Wood Engineering Conference |
|---|---|
| City | New Orleans |
| Period | 01/01/1996 → … |