Probabilistic control of materials by a simulation method

Elgueta, Marcelo; Kittl, P.

doi:10.1016/j.matdes.2006.05.012

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Though this is well known to be important for analysis based on the mesoscopic mechanics, lack of such data is primarily due to the experimental difficulties resulting from the small diameter of the carbon fibres (~7 µm) 9 . The compressive strength of carbon fibres evaluated from the compressive strength of unidirectional fibre reinforced depends significantly on the properties of the matrix and the interface, since fracture modes vary with these properties, Furthermore, improper application of the rule of mixtures to give the strength of the reinforcing fibres adds uncertainty to the estimated values [10][11][12][13] . To overcome this problem, the compressive strength of carbon fibres has been determined by analyzing the fragmentation process of a singlefilament in a model composite during compressive loading or bending [14][15] .…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Longitudinal Compressive Strength of Carbon Fibres with a Direct Measurement System

Zhang

Zhong

et al. 2011

Polymers and Polymer Composites

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Characterization of the mechanical properties of carbon fibres is crucial to the design of fibre reinforced composite materials. However, little has been done due to the complexity and inaccuracy of some of the necessary tests. In order to study the compressive properties of single fibres, a direct system for single carbon fibre compressive strength was set up based on previous studies; several kind of PAN-based carbon fibres were examined at specimen gauge lengths from 20 to 150 μm using this system. It was discovered that the experimental compressive strength was constant when the length of carbon was in the range of 20~90 um; when the sample's length was beyond 90 μm, the compressive strength decreased sharply. The reason is that its deformation mode was not compressive but buckling. In order to compare with corresponding tensile behaviour, a tensile strength test was also carried out, and it was discovered that the compressive strength was about 50% of the tensile strength for single fibres.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Longitudinal Compressive Strength of Carbon Fibres with a Direct Measurement System

Zhang

Zhong

et al. 2011

Polymers and Polymer Composites

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A new maintenance model for high-speed railway signaling system

2013

2013 IEEE International Conference on Intelligent Rail Transportation Proceedings

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Preparation, Magnetic and Mechanical Properties of Fe/Ni-Based Amorphous Fibers

Su,

Zhao,

Shadangi

et al. 2024

Materials

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In this study, we successfully fabricated Fe61Zr10Co5Mo7W2B15 and Ni61Nb19.2Ta19.8 amorphous fibers (AFs) using the melt-extraction method. This method ensured a rapid cooling, uniform quality, minimal defects, and superior performance. Magnetic property analysis revealed that the Fe-based AFs exhibited a single-slope magnetization curve characteristic of paramagnetic or diamagnetic materials, while the Ni-based AFs displayed a rectangular curve with low magnetic hysteresis, typical of ferromagnetic materials. The axial saturation magnetization of as-prepared Ni-based AFs is ~1.5 × 10−7 emu/g, with a coercivity of about 85 Oe. The statistical analysis of tensile tests indicated that Ni-based AFs possess a higher fracture threshold of 2440 ± 199 MPa and a reliability of 14.7, demonstrating greater material safety and suitability for high-performance applications. As opposed to Ni-based AFs, Fe-based AFs present a fracture threshold and of 1582 ± 692 MPa and a reliability 4.2. Moreover, under cyclic loading conditions, Ni-based AFs exhibited less residual deformation and superior elastic recovery with a fracture strength of 2800 MPa. These findings highlight the potential of Ni-based AFs for advanced engineering applications, particularly where high strength, durability, and excellent magnetic properties are required, paving the way for their integration into next-generation technologies.

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Probabilistic control of materials by a simulation method

Cited by 3 publications

References 3 publications

Experimental Investigation of the Longitudinal Compressive Strength of Carbon Fibres with a Direct Measurement System

Experimental Investigation of the Longitudinal Compressive Strength of Carbon Fibres with a Direct Measurement System

A new maintenance model for high-speed railway signaling system

Preparation, Magnetic and Mechanical Properties of Fe/Ni-Based Amorphous Fibers

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