A Finite Element Study of Crack Behavior for Carbon Na-notube Reinforced Bone Cement

Saffar, Kaveh PourAkbar; Najafi, Ahmad R.; Moeinzadeh, Manssour H.; Sudak, L. J.

doi:10.4236/wjm.2013.35a003

Cited by 20 publications

(11 citation statements)

References 40 publications

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“…Besides, for many cases, considerable reductions were seen by the higher percentage of MWCNTs incorporation [ 80 , 81 , 82 , 83 , 84 , 85 ]. In [ 86 ], researchers investigated a conducted crack in CNTs reinforced BC using a finite element model to perform the fracture analysis of PMMA/CNTs composite material. This study considered the production of CNTs interacting by a pre-existing crack instead of the traditional model of a single fiber.…”

Section: Cnts In Pmma-based Bcsmentioning

confidence: 99%

“…This study considered the production of CNTs interacting by a pre-existing crack instead of the traditional model of a single fiber. The influences of geometric factors of the CNTs, as well as the material structural heterogeneity over crack propagation trajectory were evaluated [ 86 ]. It was determined that the fracture behavior was considerably affected by material properties and the morphological parameters of CNTs.…”

Section: Cnts In Pmma-based Bcsmentioning

confidence: 99%

“…The obtained results proved that at the crack tips, CNTs could affect the crack and cause a reduction in the stress intensity factor (SIF). Nevertheless, it can be limited to the proximity of the CNTs [ 86 ]. The trajectory of crack growth is additionally affected by the nano-structural adjustment of the composite components.…”

Section: Cnts In Pmma-based Bcsmentioning

confidence: 99%

See 2 more Smart Citations

Polymethyl Methacrylate-Based Bone Cements Containing Carbon Nanotubes and Graphene Oxide: An Overview of Physical, Mechanical, and Biological Properties

et al. 2020

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Every year, millions of people in the world get bone diseases and need orthopedic surgery as one of the most important treatments. Owing to their superior properties, such as acceptable biocompatibility and providing great primary bone fixation with the implant, polymethyl methacrylate (PMMA)-based bone cements (BCs) are among the essential materials as fixation implants in different orthopedic and trauma surgeries. On the other hand, these BCs have some disadvantages, including Lack of bone formation and bioactivity, and low mechanical properties, which can lead to bone cement (BC) failure. Hence, plenty of studies have been concentrating on eliminating BC failures by using different kinds of ceramics and polymers for reinforcement and also by producing composite materials. This review article aims to evaluate mechanical properties, self-setting characteristics, biocompatibility, and bioactivity of the PMMA-based BCs composites containing carbon nanotubes (CNTs), graphene oxide (GO), and carbon-based compounds. In the present study, we compared the effects of CNTs and GO as reinforcement agents in the PMMA-based BCs. Upcoming study on the PMMA-based BCs should concentrate on trialing combinations of these carbon-based reinforcing agents as this might improve beneficial characteristics.

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Section: Cnts In Pmma-based Bcsmentioning

confidence: 99%

Section: Cnts In Pmma-based Bcsmentioning

confidence: 99%

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Polymethyl Methacrylate-Based Bone Cements Containing Carbon Nanotubes and Graphene Oxide: An Overview of Physical, Mechanical, and Biological Properties

et al. 2020

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“…Based on research, the mechanism for using CNT as a reinforcing component in cement-based material is based on its bonding, bridging and mesh filling effects [ 11 , 12 , 13 ], which redistribute the inner stress and inhibit the propagation of micro-cracks. The influences of CNT on the properties of cement-based materials from the aspect of durability can be divided into two series.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Mechanical Properties of a Cement-Based Material Containing Carbon Nanotube under Drying and Freeze-Thaw Conditions

Wang

et al. 2015

Materials

108

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This paper aimed to explore the mechanical properties of a cement-based material with carbon nanotube (CNT) under drying and freeze-thaw environments. Mercury Intrusion Porosimetry and Scanning Electron Microscopy were used to analyze the pore structure and microstructure of CNT/cement composite, respectively. The experimental results showed that multi-walled CNT (MWCNT) could improve to different degrees the mechanical properties (compressive and flexural strengths) and physical performances (shrinkage and water loss) of cement-based materials under drying and freeze-thaw conditions. This paper also demonstrated that MWCNT could interconnect hydration products to enhance the performance of anti-microcracks for cement-based materials, as well as the density of materials due to CNT’s filling action.

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“…Based on existing knowledge, CNT can be used as a reinforcing component in cement matrix due to its bonding, bridging, and mesh filling effects [9][10][11], which can inhibit propagation of microcracks and may contribute to higher damping property. Lots of efforts have been made to apply CNT to polymer composite for enhancing vibrationreduction capacity.…”

Section: Introductionmentioning

confidence: 99%

Damping Property of a Cement‐Based Material Containing Carbon Nanotube

Liu

et al. 2015

Journal of Nanomaterials

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This study aimed to explore the damping property of a cement-based material with carbon nanotube (CNT). In the study, the cement composites with different contents of CNT (0 wt%, 0.033 wt%, 0.066 wt%, and 0.1 wt%) were investigated. Logarithmic Decrement method and Dynamic Mechanical Analysis (DMA) method were utilized to study the damping property of CNT/cement composite. The influences of CNT on pore size distribution and microstructure of composite were analyzed by Mercury Intrusion Porosimetry (MIP) and Scanning Electron Microscopy (SEM), respectively. The experimental results showed that CNT/cement composite presented higher flexural strength index than that of a pure cement paste. Additional CNT could improve the vibration-reduction capacity of cement paste. Furthermore, the experiments proved that CNT could bridge adjacent hydration products and support load transfer within cement matrix, which contributed to the energy dissipation during the loading process.

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A Finite Element Study of Crack Behavior for Carbon Na-notube Reinforced Bone Cement

Cited by 20 publications

References 40 publications

Polymethyl Methacrylate-Based Bone Cements Containing Carbon Nanotubes and Graphene Oxide: An Overview of Physical, Mechanical, and Biological Properties

Polymethyl Methacrylate-Based Bone Cements Containing Carbon Nanotubes and Graphene Oxide: An Overview of Physical, Mechanical, and Biological Properties

Investigation on the Mechanical Properties of a Cement-Based Material Containing Carbon Nanotube under Drying and Freeze-Thaw Conditions

Damping Property of a Cement‐Based Material Containing Carbon Nanotube

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