Tensile fracture behavior of short carbon nanotube reinforced polymer composites: A coarse-grained model

Autor:	Arash, Behrouz, Park, Harold S., Rabczuk, Timon
Rok vydání:	2017
Předmět:	Physics - Applied Physics Condensed Matter - Materials Science Condensed Matter - Soft Condensed Matter Physics - Computational Physics
Druh dokumentu:	Working Paper
DOI:	10.1016/j.compstruct.2015.09.001
Popis:	Short-fiber-reinforced polymer composites are increasingly used in engineering applications and industrial products owing to their unique combination of superior mechanical properties, and relatively easy and low cost manufacturing process. The mechanical behavior of short carbon nanotube (CNT) polymer composites, however, remains poorly understood due to size and time limitations of experiments and atomistic simulations. To address this issue, the tensile fracture behavior of short CNT reinforced poly (methyl methacrylate) (PMMA) matrix composites is investigated using a coarse-grained (CG) model. The reliability of the CG model is demonstrated by reproducing experimental results on the stress-stain behavior of the polymer material. The effect of the nanotube weight fraction on the mechanical properties, i.e. the Young's modulus, yield strength,tensile strength and critical strain, of the CNT/polymer composites is studied in detail. The dependence of the mechanical properties of the composites on the orientation and length-to-diameter aspect ratio of nanotube reinforcements is also examined. Comment: arXiv admin note: text overlap with arXiv:1704.01451
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1704.06709 Zobrazit plný text záznamu View this record from Arxiv