Structural response of aerospace-grade thin-ply woven and non-crimp fabrics

• Type: Article in International Conference Proceedings Book
• Date: 2017

Authors

Arteiro, A (Author) FEUP; Catalanotti, G (Author) Other; Xavier, J (Author) Other; Linde, P (Author) Other; Camanho, PP (Author) FEUP

Conference proceedings International

Title: ICCM International Conferences on Composite Materials

21st International Conference on Composite Materials, ICCM 2017

20 August 2017 through 25 August 2017

Indexing

Scopus - 1 Citation

Other information

Authenticus ID: P-00P-MBQ

Abstract (EN): The effect of ply thickness on the onset of intralaminar and interlaminar damage is extremely important for the structural response of laminated composite structures. This subject has gained more interest in recent years due to the introduction in the market of spread-tow, ultra-thin carbon-fibre reinforcements. In the present work, an experimental test campaign was carried out to study the structural response of aerospace-grade plain weave STFs of different areal weights, and NCFs with different levels of 0° ply blocking. The results show that multidirectional thin-STF laminates exhibit an improved tensile unnotched strength over the thick-STF laminate, and similar tensile notched strengths. In compression, the thin-STF laminate performed substantially better in both unnotched and notched configurations, but exhibited a similar bearing response. In the case of the thin-ply NCFs, the results show that, by grouping together the 0° plies in thicker blocks, an improved structural response was obtained on scaled coupons, as well as on mechanically fastened joints, without compromising the superior unnotched tensile and compressive strengths intrinsic to thin-ply laminates.

Language: English

Type (Professor's evaluation): Scientific