Nanomechanics serving polymer-based composite research

• DOI: 10.5802/crphys.56
• Publication Date: 2021-03-26T15:10:28Z
• Authors: Thomas Pardoen; Nathan Klavzer; Sarah Gayot; Frederik Van Loock; Jérémy Chevalier; Xavier Morelle; Vincent Destoop; Frédéric Lani; Pedro Camanho; Laurence Brassart; Bernard Nysten; Christian Bailly
• Keywords: Nanomechanics; Microbeam; Digital image correlation; Characterization; Micromechanics; Nanomaterials

Tremendous progress in nanomechanical testing and modelling has been made during the last two decades. This emerged from different areas of materials science dealing with mechanical behaviour thin films coatings, polymer blends, nanomaterials or microstructure constituents as well rapidly growing field MEMS. Nanomechanical test methods include, among others, nanoindentation, in-situ a scanning transmission electron microscope coupled digital image correlation, atomic force microscopy new advanced dynamic modes, micropillar compression splitting, on-chip testing, notched microbeam bending. These methods, when combined, reveal elastic, plastic, creep, fracture properties at micro- even nanoscale. Modelling techniques including atomistic simulations several coarse graining have enriched to level that allows treating complex size, interface surface effects realistic way. Interestingly, transfer this paradigm long fibre-reinforced composites not intense compared other fields. Here, we show these put together can offer perspectives for an improved characterisation response elementary fibre-matrix level, involving interfaces interphases. Yet, there are still many open issues left resolve. In addition, is length scale, typically below 10 micrometres, which current multiscale requires enhancements increase its predictive potential, particular respect non-linear plasticity phenomena.