Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Deformation of Bioinspired MXene Based Polymer Composites with Brick and Mortar Structures: Computational Analysis

Version 1 : Received: 25 October 2020 / Approved: 26 October 2020 / Online: 26 October 2020 (12:29:40 CET)

A peer-reviewed article of this Preprint also exists.

Srivatsa, S.; Paćko, P.; Mishnaevsky, L., Jr.; Uhl, T.; Grabowski, K. Deformation of Bioinspired MXene-Based Polymer Composites with Brick and Mortar Structures: A Computational Analysis. Materials 2020, 13, 5189. Srivatsa, S.; Paćko, P.; Mishnaevsky, L., Jr.; Uhl, T.; Grabowski, K. Deformation of Bioinspired MXene-Based Polymer Composites with Brick and Mortar Structures: A Computational Analysis. Materials 2020, 13, 5189.

Journal reference: Materials 2020, 13, 5189
DOI: 10.3390/ma13225189

Abstract

Deformation behavior of MXene based polymer composites with bioinspired brick and mortar structures is analyzed. MXene/Polymer nanocomposites are modeled at microscale using bioinspired configurations of nacre-mimetic brick-and-mortar assembly structure. MXenes (brick) with polymer matrix (mortar) are modeled using classical analytical methods and numerical methods based on Finite Elements (FE). The analytical methods provide less accurate estimation of elastic properties compared to numerical one. MXene nanocomposite models analyzed with FE method provide estimates of elastic constants in the same order of magnitude as literature reported experimental results with good consistency. Bioinspired design of MXene nanocomposites results in the effective Young’s modulus of the nanocomposite increase by 25.1 % and the strength (maximum stress capacity within elastic limits) increase by 42.3 %. The brick and mortar structure of the nanocomposites leads to interlocking mechanism between MXene fillers in polymer matrix, resulting in effective load transfer, good strength, and damage resistance. This is demonstrated in this paper by numerical analysis of MXene nanocomposites subjected to quasi-static loads.

Subject Areas

MXenes; Biomimicry; Brick-and-mortar structures; Micromechanical models; Finite Element Method; Computational Analysis; Effective Interface Model

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