Fracture performance of fibre-reinforced epoxy foam

Fracture performance of fibre-reinforced epoxy foam
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纤维增强环氧泡沫塑料的断裂性能

DOI:
10.1016/j.compositesb.2022.110433
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发表时间:
2023
期刊:
影响因子:
12.8
通讯作者:
Irven G
Irven G
中科院分区:
工程技术1区
文献类型:
--
作者:
Irven G

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低密度芳纶和碳纤维增强环氧树脂泡沫的合成目的是提高机械性能,主要是断裂性能。测试的泡沫性能包括断裂能、抗压强度和密度。研究了纤维类型、载荷和长度对其性能的影响。此外,还进行了复合材料面板结合试验,以确定韧性如何从单个组件传递到复合材料结构。总的来说,与对照泡沫相比,纤维的加入改善了增强样品的力学性能。加入0.75 mm芳纶纤维后,抗压强度的增加幅度不大,而断裂能从124 J/m2增加到256 J/m2,增幅高达107%。泡沫材料断裂能的增加和泡沫表面纤维的存在,使面板粘结扩展断裂韧性增加了50%,从277 J/m2增加到416 J/m2。
Low density aramid and carbon fibre-reinforced epoxy foam has been synthesised with the aim of improving mechanical properties, principally fracture performance. The foam properties measured were fracture energy, compressive strength, and density. The influence of fibre type, loading, and length was investigated. In addition, composite face-sheet bond tests were performed to ascertain how effective toughness transferred from individual component to composite structure. In general, the addition of fibres improved the mechanical performance of reinforced samples compared to the control foam. Increases in compressive strength were moderate whilst fracture energy was increased by up to 107% from 124 J/m2to 256 J/m2by the addition of 0.75 mm aramid fibres. Increased fracture energy of the foam and the presence of fibres on the foam surface, caused an increase in face-sheet bond propagation fracture toughness of 50% from 277 J/m2to 416 J/m2.
DOI: 10.1007/bf00548161
发表时间: 1977-04
影响因子: 4.5
作者:
T. Cotgreave;J. B. Shortall
通讯作者: T. Cotgreave;J. B. Shortall
DOI: --
发表时间: 1978
期刊:
影响因子: --
作者:
T. Cotgreave;J. B. Shortall
通讯作者: J. B. Shortall
混合复合泡沫的建模
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者:
A. Desai;S. Nutt;M. Alonso
通讯作者: M. Alonso
纤维增强硬质聚氨酯泡沫的失效机制
DOI: --
发表时间: 1977
期刊:
影响因子: --
作者:
T. Cotgreave;J. B. Shortall
通讯作者: J. B. Shortall