A CONTINUUM MODEL FOR STONE-WALES DEFECTED CARBON NANOTUBES

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MOSHREFZADEH SANI H.; SABOORI B.; ALIZADEH M.

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Journal Paper

Paper Information

Journal: International Journal of Engineering Year:2015 | Volume:28 | Issue:3 (TRANSACTIONS C: ASPECTS) Page(s): 433-439

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Title

A CONTINUUM MODEL FOR STONE-WALES DEFECTED CARBON NANOTUBES

Author(s)

MOSHREFZADEH SANI H. | SABOORI B. | ALIZADEH M. | Issue Writer Certificate

Keywords

NANOTUBE

CONTINUUM MODEL

RACTURE TOUGHNESS

ENERGY RELEASE RATE

DAMAGE

Abstract

In this paper, a CONTINUUM MODEL is proposed so that a Stone-Wales (SW) defected carbon NANOTUBE (CNT) is replaced by an initial circumferential crack in a continuum cylindrical shell. For this purpose, the critical ENERGY RELEASE RATE and then the fracture toughness of a defected CNT are calculated using the results of an existing atomistic-based continuum finite element simulation. Finally, the equivalent crack length is obtained from the fracture toughness. The proposed model can be applicable tovarious kinds of continuum-based simulations of nano-structures like nano-composites and nano probes where the fracture resistance studies become important. It is concluded for a case study that the armchair (12, 12) CNT containing a SW defect could be replaced with a continuum cylindrical shell with a circumferential crack length of 0.83 nm. Furthermore, the DAMAGE variable is discussed to achieve a method for estimating the effective Young's modulus of defected NANOTUBEs with numerous defects subjected to the progressive DAMAGE. This estimation method is evaluated by the atomistic based FE simulation of a double defected CNT.

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APA: Copy

MOSHREFZADEH SANI, H., SABOORI, B., & ALIZADEH, M.. (2015). A CONTINUUM MODEL FOR STONE-WALES DEFECTED CARBON NANOTUBES. INTERNATIONAL JOURNAL OF ENGINEERING, 28(3 (TRANSACTIONS C: ASPECTS)), 433-439. SID. https://sid.ir/paper/677147/en

Vancouver: Copy

MOSHREFZADEH SANI H., SABOORI B., ALIZADEH M.. A CONTINUUM MODEL FOR STONE-WALES DEFECTED CARBON NANOTUBES. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2015;28(3 (TRANSACTIONS C: ASPECTS)):433-439. Available from: https://sid.ir/paper/677147/en

IEEE: Copy

H. MOSHREFZADEH SANI, B. SABOORI, and M. ALIZADEH, “A CONTINUUM MODEL FOR STONE-WALES DEFECTED CARBON NANOTUBES,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 28, no. 3 (TRANSACTIONS C: ASPECTS), pp. 433–439, 2015, [Online]. Available: https://sid.ir/paper/677147/en

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