Abstract
A strength prediction method is presented for double-lap single fastener bolted joints of cross-ply carbon fibre reinforced plastic (CFRP) composite
laminates using cohesive zone elements (CZEs). Three-dimensional finite element
models were developed and CZEs were inserted into subcritical damage planes
identified from X-ray radiographs. The method makes a compromise between
the experimental correlation factors (dependant on lay-up, stacking sequence and
joint geometry) and three material properties (fracture energy, interlaminar strength
and nonlinear shear stress-strain response). Strength of the joints was determined
from the predicted load-displacement curves considering sub-laminate and plylevel scaling effects. The predictions are in a reasonable agreement with the experimental data.
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laminates using cohesive zone elements (CZEs). Three-dimensional finite element
models were developed and CZEs were inserted into subcritical damage planes
identified from X-ray radiographs. The method makes a compromise between
the experimental correlation factors (dependant on lay-up, stacking sequence and
joint geometry) and three material properties (fracture energy, interlaminar strength
and nonlinear shear stress-strain response). Strength of the joints was determined
from the predicted load-displacement curves considering sub-laminate and plylevel scaling effects. The predictions are in a reasonable agreement with the experimental data.
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| Original language | English |
|---|---|
| Pages (from-to) | 199-225 |
| Number of pages | 27 |
| Journal | Computers, Materials & Continua |
| Volume | 34 |
| Issue number | 3 |
| Publication status | Published - Apr 2013 |
Keywords
- Composite laminates
- bolted joints
- strength prediction
- finite elements method (FEM)
- subcritical damage modelling
- cohesive zone elements (CZEs)