Fatigue delamination growth in textile-reinforced plastics under combined interlaminar shear and compression: Numerical and experimental characterization
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
In this work, the crack growth behavior of three textile-reinforced composites under the combined loading of interlaminar shear and through-thickness compression was investigated. Composites were manufactured by resin-transfer molding using three different plain weave carbon fiber textile reinforcements, all with the same carbon fiber roving but varying areal weights, to study the influence of ondulation on fatigue crack growth. Specimens with a hole-notch geometry were tested under four different static load superpositions of F z=0.0, 0.5, 1.0 and 2.0kN, corresponding to σ z=0.0, 2.0, 4.0 and 8.0MPa. Cyclic loading with a force ratio of R=0.1 was applied with amplitudes of F x,a=2.25, 2.70 and 3.15kN. A modified digital image correlation method measured crack tip opening displacements to derive energy release rates. Furthermore, a Python-based numerical model simulated strain fields and fracture properties, validated against experimental strain data to ensure accuracy. The model also employed the J-integral method to independently compute energy release rates, verifying experimental assumptions and improving the understanding of fracture mechanisms in textile-reinforced composites. Both the optical measurement method and the model showed comparable results.
Details
| Original language | English |
|---|---|
| Article number | 119384 |
| Number of pages | 18 |
| Journal | Composite Structures |
| Volume | 371 |
| Early online date | 2 Jul 2025 |
| Publication status | Published - 1 Nov 2025 |
| Peer-reviewed | Yes |
External IDs
| ORCID | /0000-0002-6817-1020/work/187559824 |
|---|---|
| ORCID | /0000-0003-1370-064X/work/187561105 |
| ORCID | /0000-0002-2280-7580/work/187562216 |
| Scopus | 105010208801 |
| WOS | 001538403200001 |
Keywords
Keywords
- Mixed-Mode loading, Textile reinforcements, Numerical analysis, Biaxial testing, Cyclic fatigue crack growth, Delamination, Digital image correlation