Loading...
Please wait, while we are loading the content...
Similar Documents
Fibre bridging: Continuum modelling of extrinsic toughening in double cantilever beam tests
| Content Provider | SAGE Publishing |
|---|---|
| Author | Huxford, Bobby Ronan, William Russell, Benjamin P. |
| Copyright Year | 2022 |
| Abstract | Extrinsic toughening, such as fibre bridging, acts behind the crack tip to increase toughness in composite laminates. Computational studies have captured this phenomenon; however, the uniqueness of fit between computational results (which vary based on the interface traction-separation relationship) and experimental results has not been explored in detail. Here, detailed exploration of the parameter space for various traction-separation laws (TSL) using finite elements is presented to investigate the role of fibre bridging. In the absence of extrinsic toughening, a linear softening TSL is sufficient to capture the key R-curve features, the total input fracture energy is of primary importance. Where extrinsic toughening is present, the ratio between intrinsic and extrinsic energy dictates the shape of the crack growth resistance curve (where fracture toughness (energy) increases with increasing crack growth). The influence of fibre bridging length on the crack growth required to reach a plateau in toughness is examined. A strategy for determining key cohesive properties from a double cantilever beam test is presented and applied to experimental results. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/00219983221112469?download=true |
| Starting Page | 3307 |
| Ending Page | 3321 |
| Page Count | 15 |
| ISSN | 00219983 |
| Issue Number | 21 |
| Volume Number | 56 |
| Journal | Journal of Composite Materials (JCM) |
| e-ISSN | 1530793X |
| DOI | 10.1177/00219983221112469 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2022-07-07 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2022 |
| Subject Keyword | composite laminate finite element interlaminar failure double cantilever beam test fibre bridging traction separation law extrinsic toughness |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ceramics and Composites Materials Chemistry Mechanics of Materials Mechanical Engineering |
