Fatigue life prediction of unidirectional carbon fiber/epoxy composite on Mars

Anvari, Ali

doi:10.5897/jcems2017.0303

Cited by 10 publications

(1 citation statement)

References 27 publications

(35 reference statements)

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“…24 Common CVD techniques include thin-film catalyst CVD 25−27 in which the catalyst layer is deposited onto a host substrate prior to synthesis and floating-catalyst CVD in which catalyst is injected into the CVD chamber as part of a liquid precursor. 28−30 CNT forests grown using a film catalyst produce an areal density on the order of 10 9 to 10 10 cm −2 for multiwalled CNT (MWNT) forests and 10 13 CNTs cm −225−27 for single-walled CNT forests. The typical CNT diameter range for MWNT forests grown using film catalysts is between 8 and 20 nm.…”

Section: Introductionmentioning

confidence: 99%

Growth and Mechanics of Heterogeneous, 3D Carbon Nanotube Forest Microstructures Formed by Sequential Selective-Area Synthesis

Hines

Hajilounezhad

Love-Baker

et al. 2020

ACS Appl. Mater. Interfaces

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Three-dimensional carbon nanotube (CNT) forest microstructures are synthesized using sequenced, site-specific synthesis techniques. Thin-film layers of Al2O3 and Al2O3/Fe are patterned to support film-catalyst and floating-catalyst chemical vapor deposition (CVD) in specific areas. Al2O3 regions support only floating-catalyst CVD, whereas regions of layered Al2O3/Fe support both film- and floating-catalyst CNT growth. Sequenced application of the two CVD methods produced heterogeneous 3D CNT forest microstructures, including regions of only film-catalyst CNTs, only floating-catalyst CNTs, and vertically stacked layers of each. The compressive mechanical behavior of the heterogeneous CNT forests was evaluated, with the stacked layers exhibiting two distinct buckling plateaus. Finite element simulation of the stacked layers demonstrated that the relatively soft film-catalyst CNT forests were nearly fully buckled prior to large-scale deformation of the bottom floating-catalyst CNT forests.

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Section: Introductionmentioning

confidence: 99%

Growth and Mechanics of Heterogeneous, 3D Carbon Nanotube Forest Microstructures Formed by Sequential Selective-Area Synthesis

Hines

Hajilounezhad

Love-Baker

et al. 2020

ACS Appl. Mater. Interfaces

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Thermal Life of Carbon Structures: From the Earth to after the Titan

Anvari

2018

International Journal of Aerospace Engineering

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With the increasing of consumption of sources and the population of mankind on Earth, scientists are looking for an alternative planet in the solar system that can establish the second home for mankind. Previously, Mars has been the center of attention by scientists due to the closer distance to Earth and being similar to that in many aspects. Recently, scientists discovered that there may be a better alternative. Titan, despite its great distance from the Earth, seems like a better planet for the mankind colonization due to its atmosphere that create a shield against the radiation in comparison to Mars' atmosphere that is thin and is not capable to create an adequate shield against radiation. In the previous work, the thermal life of carbon structures on Mars was approximately estimated. The aim of this research is to provide a method to estimate the thermal life of carbon structures on Titan. Carbon structures are currently used in space structures due to their lightweight and strength.

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Characterization of Implantation's Biomaterials Based on the Patient and Doctor Expectations

Anvari¹

2018

RMES

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The aim of this research is to characterize the biomaterials for different implant applications in human body. Biomaterials have been used in different parts of human body such as hips, bones, joints, stents, etc. As these materials are using in different parts of human body, they need to represent properties compatible to the required part which is called biocompatibility. Even the expectations of the patient and doctor from the biomaterials implantation surgery can seriously affect the selection of biomaterials. For an instance, if the patient is too old, they may need to use a biomaterial that may dissolve in human body thus the second surgery for implant removal can be eliminated for the patient convenience. The selection of biomaterials that can offer suitable properties is of high significance. In some cases, they need to be tough like bones and joints with enough stiffness. In some implantations, they need to be flexible like stents for heart valves. In some of the cases, they need to be anti-corrosion due to the hostile environment in human body fluid. On the other hand, in some cases they need to dissolve in human body to eliminate the implantation removal surgery. Furthermore, it seems necessary to evaluate the biomaterials based on their fatigue life because they are subjected to cyclic loads in human body. The objective of this study is to characterize the properties of different biomaterials that can help the doctor and the patient to select the best biomaterials based on their expectations from the implantation surgery.

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Fatigue life prediction of unidirectional carbon fiber/epoxy composite on Mars

Cited by 10 publications

References 27 publications

Growth and Mechanics of Heterogeneous, 3D Carbon Nanotube Forest Microstructures Formed by Sequential Selective-Area Synthesis

Growth and Mechanics of Heterogeneous, 3D Carbon Nanotube Forest Microstructures Formed by Sequential Selective-Area Synthesis

Thermal Life of Carbon Structures: From the Earth to after the Titan

Characterization of Implantation's Biomaterials Based on the Patient and Doctor Expectations

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