TY - JOUR
T1 - Elastic properties of UHMWPE-SWCNT nanocomposites' fiber
T2 - An experimental, theoretic, and molecular dynamics evaluation
AU - Khan, Mujibur R.
AU - Mahfuz, Hassan
AU - Adnan, Ashfaq
AU - Shabib, Ishraq
AU - Leventouri, Theodora
N1 - Funding Information:
The authors would like to acknowledge support from the National Science Foundation (NSF) for this work through Grant No. HRD-976871. The authors would also like to thank Dr. Efthymios Liarokapis and Dr. Mahmoud Madani for their assistance in Raman Spectroscopy and SEM analysis.
PY - 2013/6
Y1 - 2013/6
N2 - Ultrahigh molecular weight polyethylene (PE) filaments were reinforced with 2 wt.% of single-walled carbon nanotubes (SWCNTs). The solution spinning method was used to produce both neat and reinforced PE filaments. Tensile tests and strain hardening through repeated loading-unloading cycles of the filaments revealed a spectacular contribution of the SWCNTs in enhancing the elastic properties, e.g., strength and modulus. The theoretic strength and modulus of the reinforced PE were predicted using the shear lag model and micromechanics-based model, respectively, and verifying with experimental results. It was observed that the predicted strength and modulus were comparable only with those obtained after strain hardening. In the next step, a molecular dynamic simulation was conducted by simulating a unit cell containing a SWCNT surrounded by PE matrix subjected to uniaxial tensile strain. The strength and modulus of the simulated structure showed an agreement, to certain extent, with experimental observations of strain-hardened nanocomposites.
AB - Ultrahigh molecular weight polyethylene (PE) filaments were reinforced with 2 wt.% of single-walled carbon nanotubes (SWCNTs). The solution spinning method was used to produce both neat and reinforced PE filaments. Tensile tests and strain hardening through repeated loading-unloading cycles of the filaments revealed a spectacular contribution of the SWCNTs in enhancing the elastic properties, e.g., strength and modulus. The theoretic strength and modulus of the reinforced PE were predicted using the shear lag model and micromechanics-based model, respectively, and verifying with experimental results. It was observed that the predicted strength and modulus were comparable only with those obtained after strain hardening. In the next step, a molecular dynamic simulation was conducted by simulating a unit cell containing a SWCNT surrounded by PE matrix subjected to uniaxial tensile strain. The strength and modulus of the simulated structure showed an agreement, to certain extent, with experimental observations of strain-hardened nanocomposites.
KW - SWCNT
KW - UHMWPE
KW - molecular model
KW - shear lag model
KW - solution spinning
KW - strain hardening
UR - http://www.scopus.com/inward/record.url?scp=84878016577&partnerID=8YFLogxK
U2 - 10.1007/s11665-013-0471-9
DO - 10.1007/s11665-013-0471-9
M3 - Article
AN - SCOPUS:84878016577
VL - 22
SP - 1593
EP - 1600
JO - Journal of Materials Engineering and Performance
JF - Journal of Materials Engineering and Performance
SN - 1059-9495
IS - 6
ER -