Compression failure of unidirectional glass-fibre-reinforced plastics

Баженов, С. Л.; Kuperman, A. M.; Zelenskii, E. S.; Berlin, A. A.

doi:10.1016/0266-3538(92)90080-m

Cited by 44 publications

(19 citation statements)

References 2 publications

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“…While rod diameter varies with tooth size as well as location, the trend of smaller diameter rods on the leading edge is consistent with previous observations . In fiber reinforced composites, smaller diameter fibers are preferred for tensile loading as they have fewer flaws, making them less brittle and therefore stronger in tension . Thin fibers also have more flexibility, providing resistance to fracture during bending .…”

Section: Discussionsupporting

confidence: 89%

Stress and Damage Mitigation from Oriented Nanostructures within the Radular Teeth of Cryptochiton stelleri

Grunenfelder¹,

Obaldia

Wang³

et al. 2014

Adv Funct Materials

135

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Chiton are marine mollusks who use heavily mineralized and ultrahard teeth to feed on epilithic and endolithic algae on intertidal rocks. To fulfill this function, chiton teeth must be tough and wear‐resistant. Impressive mechanical properties are achieved in the chiton tooth through a hierarchically arranged composite structure consisting of a hard shell of organic‐encased and highly oriented nanostructured magnetite rods that surround a soft core of organic‐rich iron phosphate. Microscopic and spectroscopic analyses combined with finite element simulations are used to probe the ultrastructural features and uncover structure–mechanical property relationships in the fully mineralized teeth of the gumboot chiton Cryptochiton stelleri. By understanding the effects of the nanostructured architecture within the chiton tooth, abrasion‐resistant materials can be developed for tooling and machining applications, as well as coatings for equipment and medical implants.

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Section: Discussionsupporting

confidence: 89%

Stress and Damage Mitigation from Oriented Nanostructures within the Radular Teeth of Cryptochiton stelleri

Grunenfelder¹,

Obaldia

Wang³

et al. 2014

Adv Funct Materials

135

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“…figure 8). Given that the fibre diameter is not considered in Budiansky's theory, the resistance of thick fibres against microbuckling could not be taken into account anyway [2]. In addition, with increasing fibre alignment the compressive load ratio will decrease asymptotically to a negligible value.…”

Section: (B) Compressive Failure In the Presence Of Voidsmentioning

confidence: 99%

“…Particularly with regard to the compressive strength, the void content can have a significant influence as summarized by Schultheisz & Waas [5]. Bazhenov et al [2] investigated both the link between compressive strength and void content as well as the influence of fibre diameter. They concluded that, for thicker fibre diameters, the compressive strength can not only be explained by microbuckling analysis.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical analysis of the degradation of fibre-reinforced polymers under the presence of void imperfections

Liebig

Schulte

Fiedler³

2016

Phil. Trans. R. Soc. A.

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The subject of this work is the investigation of the influence of voids on the mechanical properties of fibre-reinforced polymers (FRPs) under compression loading. To specify the damage accumulation of FRPs in the presence of voids, the complex threedimensional structure of the composite including voids was analysed and a reduced mechanical model composite was derived. The hierarchical analysis of the model composite on a micro-scale level implies the description of the stress and strain behaviour of the matrix using the photoelasticity technique and digital image correlation technology. These studies are presented along with an analytical examination of the stability of a single fibre. As a result of the experimental and analytical studies, the stiffness of the matrix and fibre as well as their bonding, the initial fibre orientation and the fibre diameter have the highest impact on the failure initiation. All these facts lead to a premature fibre-matrix debonding with ongoing loss of stability of the fibre and followed by kink-band formation. Additional studies on the mesoscale of transparent glass FRPs including a unique void showed that the experiments carried out on the model composites could be transferred to real composites.

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“…Moreover, the principal directions of applied stress coincide with the natural rod alignment within the tooth [22], [30]. This difference in loading conditions accounts for the size difference in the rods, as larger diameter rods are favorable for compressive loading [31]. The organic regions between rods were shown to increase the toughness of the tooth under indentation loads, with cracks moving preferentially between rods rather than through them [30].…”

Section: Introductionmentioning

confidence: 95%

Analysis of the mechanical response of biomimetic materials with highly oriented microstructures through 3D printing, mechanical testing and modeling

Obaldia

Jeong

Grunenfelder

et al. 2015

Journal of the Mechanical Behavior of Biomedical Materials

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Compression failure of unidirectional glass-fibre-reinforced plastics

Cited by 44 publications

References 2 publications

Stress and Damage Mitigation from Oriented Nanostructures within the Radular Teeth of Cryptochiton stelleri

Stress and Damage Mitigation from Oriented Nanostructures within the Radular Teeth of Cryptochiton stelleri

Hierarchical analysis of the degradation of fibre-reinforced polymers under the presence of void imperfections

Analysis of the mechanical response of biomimetic materials with highly oriented microstructures through 3D printing, mechanical testing and modeling

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