Mixed-mode I/II fracture criteria for adhesively-bonded pultruded GFRP/steel joint
| Autor: | Zhi Fang, Yawei Fang, Shui Wan, Zhengwen Jiang, Libo Yan |
|---|---|
| Přispěvatelé: | Publica |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
mixed-mode fracture behavior 02 engineering and technology Bending Fibre-reinforced plastic 021001 nanoscience & nanotechnology Mixed mode Compliance method 020303 mechanical engineering & transports Fracture toughness 0203 mechanical engineering Pultrusion Ceramics and Composites Fracture (geology) adhesively-bonded composite / steel joint Composite material 0210 nano-technology power law criteria Joint (geology) Civil and Structural Engineering 4SLB specimen |
| Popis: | The pure mode-I, pure mode-II and the mixed-mode I/II fracture behavior of the adhesively-bonded pultruded GFRP/steel joint were experimentally investigated by using double cantilever beam (DCB) test, and four-point end-notched flexure (4ENF) test combined with four-point single leg bending (4SLB) test, respectively. The extended global method (EGM) was employed to obtain closed-form analytical solutions of mode-II fracture toughness for the 4ENF specimen and mixed-mode I/II fracture toughness components for the 4SLB specimen. Combined with the mode-I fracture toughness obtained by the experimental compliance method (ECM), the power law criteria in initiation and propagation processes were developed for adhesively-bonded pultruded GFRP/steel joint. Validation on the developed mixed-mode fracture criteria was performed through employing it to predict the load-displacement responses of the 4SLB specimens combined with VCCT. Finally, the mixed-mode fracture criteria of the adhesively-bonded GFRP/steel joint were compared to those of the adhesively-bonded GFRP/GFRP joint for quantifying their difference. |
| Databáze: | OpenAIRE |
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