Static indentation characteristics of hybrid composites with non woven tissue: 1st report, observation of damage

Seung Hwan Lee; Hiroshi Noguchi; Yuuta Aono

doi:10.1299/kikaia.68.1628

Static indentation characteristics of hybrid composites with non woven tissue: 1st report, observation of damage

Seung Hwan Lee, Hiroshi Noguchi, Yuuta Aono

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Abstract

The objective of this investigation is to study the effect of non woven carbon tissue (NWCT) in order to fundamentally understand the impact damage mechanism of hybrid composites with NWCT. Damage mechanism of of hybrid composites was investigated under a quasi static indentation loading condition with a steel ball as an indentor. Four kinds of cross-ply laminates were studied; i.e. CFRP laminates ([0₅/90₅/0₅] and [0₃/90₃/0₃/90₃/0₃]) and hybrid laminates ([0₅//90₅//0₅] and [0₃//90₃//0₃//90₃//0₃]). Here, the symbol "//" means that the NWCT layer is located at an interface between the CFRP layer interfaces. Under the game condition of the indentation energy, the total delamination area of the [0₅//90₅//0₅hybrid specimen was about 56% smaller than that of the [0₅/90₅/0₅] CFRP specimen, and also the [0₃//90₃//0₃//90₃//0₃] hybrid specimen was about 38% smaller than that of the [0₃/90₃/0₃/90₃/0₃] CFRP specimen. The mechanism of the NWCT interleaving's effect was clarified based on the observation of damage on the specimens' crosssections cut after testing. It was found that the Mode II interlaminar fracture is predominant in the delamination by the indentation loading.

Original language	English
Pages (from-to)	1628-1635
Number of pages	8
Journal	Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	68
Issue number	11
DOIs	https://doi.org/10.1299/kikaia.68.1628
Publication status	Published - Nov 2002

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Static indentation characteristics of hybrid composites with non woven tissue: 1st report, observation of damage. / Lee, Seung Hwan; Noguchi, Hiroshi; Aono, Yuuta.
In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 68, No. 11, 11.2002, p. 1628-1635.

Research output: Contribution to journal › Article › peer-review

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abstract = "The objective of this investigation is to study the effect of non woven carbon tissue (NWCT) in order to fundamentally understand the impact damage mechanism of hybrid composites with NWCT. Damage mechanism of of hybrid composites was investigated under a quasi static indentation loading condition with a steel ball as an indentor. Four kinds of cross-ply laminates were studied; i.e. CFRP laminates ([05/905/05] and [03/903/03/903/03]) and hybrid laminates ([05//905//05] and [03//903//03//903//03]). Here, the symbol {"}//{"} means that the NWCT layer is located at an interface between the CFRP layer interfaces. Under the game condition of the indentation energy, the total delamination area of the [05//905//05hybrid specimen was about 56% smaller than that of the [05/905/05] CFRP specimen, and also the [03//903//03//903//03] hybrid specimen was about 38% smaller than that of the [03/903/03/903/03] CFRP specimen. The mechanism of the NWCT interleaving's effect was clarified based on the observation of damage on the specimens' crosssections cut after testing. It was found that the Mode II interlaminar fracture is predominant in the delamination by the indentation loading.",

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Static indentation characteristics of hybrid composites with non woven tissue: 1st report, observation of damage

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