Pseudo-ductility in intermingled carbon/glass hybrid composites with highly aligned discontinuous fibres

By Hana Yu, M. Longana, M. Jalalvand, M. Wisnom, Kevin Potter. 2015

164 citations recorded by the source corpus.

Abstract The aim of this research is to manufacture intermingled hybrid composites using aligned discontinuous fibres to achieve pseudo-ductility. Hybrid composites, made with different types of fibres that provide a balanced suite of modulus, strength and ductility, allow avoiding catastrophic failure that is a key limitation of composites. Two different material combinations of high strength carbon/E-glass and high modulus carbon/E-glass were selected. Several highly aligned and well dispersed short fibre hybrid composites with different carbon/glass ratios were manufactured and tested in tension in order to investigate the carbon ratio effect on the stress–strain curve. Good pseudo-ductile responses were obtained from the high modulus carbon/E-glass composites due to the fragmentation of the carbon fibres. The experimental results were also compared with an analytical solution. The intermingled hybrid composite with 0.25 relative carbon ratio gave the maximum pseudo-ductile strain, 1.1%, with a 110 GPa tensile modulus. Moreover, the initial modulus of the intermingled hybrids with 0.4 relative carbon ratio is 134 GPa, 3.5 times higher than that of E-glass/epoxy composites. The stress–strain curve shows a clear “yield point” at 441 MPa and a well dispersed and gradual damage process.

Subfields: Mechanical Engineering, Mechanics of Materials, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/f61d34a43f8fd4cac6dc1dfecc9328f76aea753f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Mechanical Engineering

1. L. Gorbatikh
2. Y. Swolfs
3. M. Jalalvand
4. I. Verpoest
5. M. Wisnom
6. G. Czél
7. J. Galos

In Mechanics of Materials

1. L. Gorbatikh
2. Y. Swolfs
3. M. Jalalvand
4. I. Verpoest
5. M. Wisnom
6. G. Czél
7. S. Hallett
8. Kevin Potter

In Polymers and Plastics

1. L. Gorbatikh
2. Y. Swolfs
3. I. Verpoest
4. G. Czél
5. M. Jalalvand
6. M. Wisnom
7. Stepan V. Lomov
8. P. Boisse

Citations in the corpus

• Design and characterisation of advanced pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites (2016, methodology): “with a new technique to manufacture highly aligned short fibre composites [29] and well dispersed intermingled short fibre hybrids [30], which showed pseudo-ductile failure.”
• Recent advances in fibre-hybrid composites: materials selection, opportunities and applications (2019, methodology): “Fibre fragmentation occurs in continuous [22,291] and discontinuous [6,208] fibre-reinforced composites.”