The failure mechanism of carbon fiber-reinforced composites under longitudinal compression considering the interface

Han, Geng; Guan, Zhidong; Xing, Li; Ji, Ruipeng; Du, Shanyi

doi:10.1515/secm-2015-0057

Cited by 15 publications

(5 citation statements)

References 18 publications

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“…The damage initiation in these compression specimens is due to shear and not due to the buckling instability. The bands formed areconsistent with results already obtained in real and simulation experiments[90]. Moreover, on the right a little detail of the benefits of using DFM as fiber breakage is capture explicitly and no element erosion or element deletion is needed.…”

supporting

confidence: 84%

Fastdm4c: A Fast and Efficient Discrete Model for Composites

DELEO,

PHENISEE,

PELESSONE

et al. 2023

American Society for Composites 2023

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The adoption of composite materials in the aerospace industry has enabled the achievement of structural performance levels and weight savings unimaginable even just twenty years ago. Yet only a fraction of the true potential of these materials has been expressed to date due to lack of high-fidelity models which has resulted in the adoption of extremely conservative designs compared to metallic counterparts. In part this is because, in contrast to high performance metallic alloys, the damaging and fracturing behaviors of composites are way more complex and difficult to simulate. Fiber reinforced composites feature many interacting mechanisms spanning several material and structural length scales, from the fiber scale of a few microns to the structural scale of a composite wing with a span of several meters. This makes the development of computational models for the design and optimization of composite structures extremely challenging due to the conflicting need of being able to capture microdamage events at the fiber scale while still being efficient enough to simulate structures that are at least six orders of magnitude larger. This work attempts to address this challenging problem by formulating a novel discrete, sub-lamina-scale model aimed at providing an effective description of damage at the microscale while maintaining computational costs comparable to continuum, homogenized formulations. In this new approach, composites are simulated as an assembly of Representative Unit Cells of roughly the same dimensions of the average distance between splitting cracks and their arrangements are designed to replicate the orthotropic behavior of the lamina. One distinct regularized strain-softening constitutive law is utilized to describe the behavior of the fibers using a new element called Discrete Fiber Model (DFM).

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supporting

confidence: 84%

Fastdm4c: A Fast and Efficient Discrete Model for Composites

DELEO,

PHENISEE,

PELESSONE

et al. 2023

American Society for Composites 2023

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“…Additionally, finding replacements can be challenging. While they offer superior performance and aesthetics, these come at a price, making them ideal for those prioritizing performance and looks with a budget to match [53]. Mechanical Properties of Carbon Fiber Material [54], [55], [56] are shown in Figure 6 and Table 5.…”

Section: Composite Materialsmentioning

confidence: 99%

Study of Various Materials for Automobile Bumper: A Review

Tushar Desai,

Dr. K. H. Inamdar,

Pratik Kamble

et al. 2024

Int Res J Adv Engg Hub

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India leads the world in annual road fatalities (230,000), despite being a top-ten car market. This discrepancy highlights the urgent need for stricter vehicle safety regulations. While concerns regarding an 8-15% increase in car prices due to stricter standards exist, the potential for global car exports and significant lives saved outweighs these costs. This review analyses the critical role car bumpers play in mitigating accident severity. By absorbing impact energy and protecting occupants and vehicles, bumpers directly address a crucial gap in current Indian automotive safety. Implementing stringent safety regulations, including robust bumper testing programs, can significantly reduce road fatalities and injuries, aligning India's car safety standards with global best practices and fostering a safer transportation ecosystem.

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“…The deformation and fracture of unidirectional FRP composites under compressive load are affected by factors such as the fiber modulus, initial arrangement of fibers, internal defects, and fiber-matrix interface, resulting in changes in the compressive behavior and failure mechanism. [15][16][17][18][19][20] In general, the axial compressive failure modes of unidirectional FRP composites are debonding, resin fracture, fiber buckling instability, kinking, and fiber crushing. In the case of a good interface property and fewer defects, the fiber in the composite first reaches the critical instability state, followed by fiber buckling or microbuckling.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on axial compressive properties and failure mechanism of unidirectional covered carbon fiber-reinforced polymer composites

Ruan

Xia

Wang

et al. 2022

Polymers and Polymer Composites

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Axial compression performance is one of the main factors considered in the structural design of fiber-reinforced composites. However, the properties of the fibers in such composites are poor because of their orientation structures. Here, filament fibers were covered with reinforced fiber bundles to improve the axial compressive properties of the composites, and the effects of fiber covering on the axial compressive properties and failure modes of the composites were studied. The experimental results show that the covering can shorten the buckling wavelength of carbon fiber under compressive load, which can effectively improve the axial compression ability of the composite. A lower modulus of the covered filament reduced the potential to improve the compressive strength of the samples, and damage occurred primarily by splitting and shearing. With an increase in the covering density, the compressive strength and modulus gradually increased, and the damage mode changed from flexural instability to kinking damage.

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The failure mechanism of carbon fiber-reinforced composites under longitudinal compression considering the interface

Cited by 15 publications

References 18 publications

Fastdm4c: A Fast and Efficient Discrete Model for Composites

Fastdm4c: A Fast and Efficient Discrete Model for Composites

Study of Various Materials for Automobile Bumper: A Review

Experimental study on axial compressive properties and failure mechanism of unidirectional covered carbon fiber-reinforced polymer composites

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