Failure analysis of POM ternary nanocomposites for gear applications: Experimental and finite element study

Mohsenzadeh, R.; Soudmand, B.H.; Shelesh‐Nezhad, Karim

doi:10.1016/j.engfailanal.2022.106606

Cited by 15 publications

(2 citation statements)

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“…Nanocomposites present a distinct set of attributes when compared to traditional composites, achieved by introducing minute quantities of nanoreinforcements. [14][15][16][17][18][19] These properties originate from the large specific surface area of nanoparticles, promoting direct interaction with the polymeric matrix, and yielding an exceptionally extensive polymerfiller interfacial region. [20][21][22][23][24][25][26] Numerous research papers have been devoted to this field, showcasing the notable enhancement of mechanical properties upon the integration of diverse nanofillers.…”

Section: Introductionmentioning

confidence: 99%

“…Nanocomposites present a distinct set of attributes when compared to traditional composites, achieved by introducing minute quantities of nanoreinforcements 14–19 . These properties originate from the large specific surface area of nanoparticles, promoting direct interaction with the polymeric matrix, and yielding an exceptionally extensive polymer‐filler interfacial region 20–26 .…”

Section: Introductionmentioning

confidence: 99%

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Mechanical, morphological, and numerical evaluation of biocompatible ultra‐high molecular weight polyethylene/nano‐zeolite nanocomposites

Soudmand,

Mohsenzadeh

2023

Polymer Composites

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The incorporation of bio‐friendly nano‐zeolite (NZ) into ultra‐high molecular weight polyethylene (UHMWPE), renowned for its exceptional biocompatibility, presents an intriguing pathway for robust structural biomedical applications. This study aimed to investigate the influence of NZ integration on the tensile and impact properties of UHMWPE/NZ nanocomposites through experimental and morphological assessments. The morphology examinations primarily entailed particle distribution, clustering extent, and the primary toughening response induced by fillers under impact loading. Fourier transform infrared spectroscopy (FTIR) was utilized to investigate the bonding characteristics between NZ and UHMWPE within the nanocomposites. Moreover, differential scanning calorimetry (DSC) was employed to examine alterations in the crystalline structure of the nanocomposites, revealing an increase of up to 9% in crystallinity () following the incorporation of NZ. Tensile tests demonstrated significant improvements, with a 45% increase in tensile modulus and a 14% increment in strength upon the inclusion of NZ. Impact toughness consistently showed enhancements of up to 24%. The improved impact strength was attributed to the extensive partial particle‐induced debonding and subsequent release of plastic constraints within the matrix. The micro‐mechanisms responsible for nanoparticle‐triggered toughening were further investigated using super‐magnified images from impact‐fractured SEM micrographs, and various impact toughening mechanisms were observed, classified, and discussed in the UHMWPE/NZ nanocomposites. Various analytical solutions were employed to predict the elastic modulus and tensile strength of nanocomposites. Subsequently, the results were compared to experimental data, and any discrepancies were thoroughly justified.Highlights The mechanical traits of UHMWPE/nano‐zeolite nanocomposites were explored. Tensile and impact strength increased up to 14% and 24% with NZ addition. Morphological inspections were conducted to assess filler‐induced debonding. Toughening mechanisms were assessed through super‐magnified SEM micrographs. Micromechanical models were used to predict the tensile modulus and strength.

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