Mode I fatigue fracture toughness of woven laminates: Nesting effect

Olave, Mireia; Vara, Igor; Usabiaga, Hodei; Aretxabaleta, L.; Lomov, Stepan Vladimirovitch; Vandepitte, Dirk

doi:10.1016/j.compstruct.2015.07.073

Cited by 8 publications

(5 citation statements)

References 25 publications

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“…where δ max is the maximum crack opening displacement, G max,0 is the G at which the tests started, a 0 is the initial crack length, and a C and δ C are the critical crack length and crack opening displacement respectively, determined from the static tests. G max,0 /G C has been set equal to 0.85, following other authors' experience [27]; this allows to speed-up and record the complete behaviour of crack propagation [28]. Different values of δ max have been calculated for each configuration due to different values of G C for V and N specimens.…”

Section: Fatigue Testsmentioning

confidence: 99%

Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates

Brugo

Minak

Zucchelli

et al. 2017

Composite Structures

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The benefits of interleaving polymeric electrospun nanofibers in between laminae of composite structure have been widely demonstrated in the past several years. Among the work that still has to be done, this paper aims to study delamination propagation of virgin and nanomodified specimens under Mode I fatigue loading. A 40-micron thick layer of Nylon 6,6 nanofibers have been produced and interleaved in carbon fiber-epoxy resin composite laminates; static and dynamic double cantilever tests have been performed to determine delamination growth onset and crack propagation rate vs. maximum energy release rate respectively. Nanomodified specimens exhibited improved delamination resistance during both the tests: delamination toughness increased 130% and cracks propagated 36 to 27 times slower than virgin interfaces. The benefits of the nanointerleave and its working mechanism have been explained using micrographs and SEM images, which revealed a double-stage reinforce mechanism

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Section: Fatigue Testsmentioning

confidence: 99%

Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates

Brugo

Minak

Zucchelli

et al. 2017

Composite Structures

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show abstract

“…His researches devoted to the fatigue behavior of long fiber reinforced composites were mainly dedicated to: non-crimp fabrics, 97,160–163 2 D textiles 85,86,164,165 and 3 D reinforcements. 134,166,167…”

Section: Fatigue Of Compositesmentioning

confidence: 99%

Contributions of Stepan V Lomov to the research and development of composite materials

Jain

Boisse

Carvelli

et al. 2020

Journal of Composite Materials

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This paper presents a comprehensive review of the scientific and engineering contributions of Prof. Stepan V. Lomov in a career spanning over 3 decades. Starting from his early work on the modelling of dry textiles, different aspects of composite materials have benefited from his inspiring contribution. His wide scientific curiosity drove the research on several topics, covering permeability, forming, damage, fatigue, nano-engineered composites, as well as development of analytical and numerical models at different scales. The paper presents a full spectrum of his scientific career aiming to link his achievements and the future research on composite materials.

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“…There has been much work carried out on characterizing the fatigue behavior of delaminations in laminate composites 1‐41 . Most studies have been carried out on UD composites and in particular for mode I deformation.…”

Section: Introductionmentioning

confidence: 99%

Effect of number of fatigue cycles on fatigue data: CFRP (prepreg and wet‐layup)

Banks‐Sills,

Choron,

Simon

2023

Fatigue Fract Eng Mat Struct

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In carrying out fatigue delamination propagation tests to assess the propagation rate versus a function of the energy release rate, the question arises as to the necessary number of cycles required to properly characterize the behavior. Tests were performed elsewhere on two different carbon/epoxy, multidirectional woven composite laminates containing a delamination using constant amplitude cycling by means of displacement control for various cycle ratios. The aim was to carry out the tests for cycles. Most specimens complied with this requirement. In this study, the fatigue data are analyzed including the first cycles, the first cycles, the first cycles, and cycles. It was seen that although the delamination length versus the cycle number could be quite similar between different cycle ranges, the Paris relation constants could be significantly different. It is suggested to carry out tests for as many cycles as possible.

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Mode I fatigue fracture toughness of woven laminates: Nesting effect

Cited by 8 publications

References 25 publications

Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates

Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates

Contributions of Stepan V Lomov to the research and development of composite materials

Effect of number of fatigue cycles on fatigue data: CFRP (prepreg and wet‐layup)

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