Guowen Sun (孙国文)

Guowen Sun (孙国文)

Be better than never

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Pages

Posts

Future Blog Post

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This post will show up by default. To disable scheduling of future posts, edit config.yml and set future: false.

Blog Post number 4

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This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 3

less than 1 minute read

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Blog Post number 2

less than 1 minute read

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Blog Post number 1

less than 1 minute read

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This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

portfolio

publications

3D Characterisation of the Tensile Failure of CFRPs Manufactured Through Tailored Fibre Placement

Published in ICCM23, 2023

This paper is about fixing template issue #693.

Recommended citation: Sun, G., Mitchell, R., Chen, Z., Omrani, F., Smith, M., Fairclough, J.P.A. and Pinna, C., 2023, August. 3D characterisation of the tensile failure of CFRPS manufactured through tailored fibre placement. In Proceedings of the 2023 International Conference on Composite Materials. Queen's University Belfast.
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talks

Conference Proceeding talk on ICCM23

Published:

Abstract: One of the promising automated fibre tow placement techniques for composite manufacturing is Tailored Fibre Placement (TFP) which provides flexibility for designing complex structures. The inherent anisotropic properties of carbon fibre reinforced plastic (CFRP) composites can be used during manufacturing through tailored placement of fibre tows to optimise lightweight and high performance simultaneously. In this study, the tensile response of a [0/60/−60]s TFP-manufactured CFRP composite was characterised through mechanical testing, carried out inside an X-ray microscope (XRM). Prior to loading a bespoke segmentation procedure was developed to clearly reveal the internal structure of the composite, including carbon fibre bundles and stitching threads. The sample was then progressively loaded with regular interruptions to scan the specimen and to characterise damage development. Results reveal the effect of stitching threads on both the morphology of carbon fibre bundles and the crack propagation process. The first crack initiated from the edge of the specimen and at mid-thickness. Further cracks appeared in the volume and in different plies as the load increased. A very fast propagation rate was recorded for these latter cracks which unloaded the first surface crack. This result emphasised the need for 3D observations to fully characterise the complex crack network eventually leading to failure of the specimen. Only a small amount of interlaminar delamination was observed, which was assumed to be prevented by the vertical stitching threads and no cracks were observed in the base material during the whole loading process.

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.