Loading rate effects on the fracture behaviour of solar control coatings during nanoindentation

Chen, Jinju; Bull, SJ

doi:10.1016/j.tsf.2007.08.131

Cited by 13 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is attributed to the fact that elastic deformation and detachment (localised cohesive failure) will dominate at very high shear rates with little energy dissipation due to viscous effects (or damping effects), as the energy dissipation by dashpot is time-dependent and lags behind elastic deformation. Such stress rate dependent failure behaviour was also observed in other non-living thin films [ 52 ].…”

Section: Resultssupporting

confidence: 72%

A mechanistic Individual-based Model of microbial communities

Jayathilake

Gupta

et al. 2017

PLoS ONE

View full text Add to dashboard Cite

Accurate predictive modelling of the growth of microbial communities requires the credible representation of the interactions of biological, chemical and mechanical processes. However, although biological and chemical processes are represented in a number of Individual-based Models (IbMs) the interaction of growth and mechanics is limited. Conversely, there are mechanically sophisticated IbMs with only elementary biology and chemistry. This study focuses on addressing these limitations by developing a flexible IbM that can robustly combine the biological, chemical and physical processes that dictate the emergent properties of a wide range of bacterial communities. This IbM is developed by creating a microbiological adaptation of the open source Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). This innovation should provide the basis for “bottom up” prediction of the emergent behaviour of entire microbial systems. In the model presented here, bacterial growth, division, decay, mechanical contact among bacterial cells, and adhesion between the bacteria and extracellular polymeric substances are incorporated. In addition, fluid-bacteria interaction is implemented to simulate biofilm deformation and erosion. The model predicts that the surface morphology of biofilms becomes smoother with increased nutrient concentration, which agrees well with previous literature. In addition, the results show that increased shear rate results in smoother and more compact biofilms. The model can also predict shear rate dependent biofilm deformation, erosion, streamer formation and breakup.

show abstract

Section: Resultssupporting

confidence: 72%

A mechanistic Individual-based Model of microbial communities

Jayathilake

Gupta

et al. 2017

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Experiments and finite element modelling (FEM) of the ZnO and Ag coatings stack [33,34] have shown evidence of delamination at the Ag-ZnO interface during indentation. No evidence of this is observed in these simulations, but at the deeper indentation depths slip in the Ag layers is observed, fig.…”

Section: Discussionmentioning

confidence: 99%

Atomistic-scale modelling of nanoindentation into optical coatings

Gheewala

Kenny

Smith

2009

Philosophical Magazine

View full text Add to dashboard Cite

Simulations of nanoindentation into a typical optical coatings stack employed in energy efficient glazing have been performed using classical molecular dynamics (MD) and a coupled finite element/MD methodology. The coatings stack consists of a low emissivity material, Ag, sandwiched between two layers of a transparent conducting oxide (TCO), ZnO. Simulations into both the ZnO and the coatings stack show a strong interaction between the tip symmetry and crystal symmetry in the observed displacement field. A large amount of elastic recovery is observed for both the ZnO system and the coatings stack, but with an impression left on the surface that looks like a crack but extends no further than the tip imprint at maximum depth. The full stack is observed to have a lower hardness once there is a significant penetration of the displacement field into the Ag, when compared to the pure ZnO system. A comparison between the coupled finite element/MD methodology and the fixed boundary MD only model shows that the boundary conditions have little influence on the calculated results.

show abstract

Effects of annealing temperature on nanomechanical and microstructural properties of Cu-doped In2O3 thin films

Chen

Lee

2017

Appl. Phys. A

View full text Add to dashboard Cite

Loading rate effects on the fracture behaviour of solar control coatings during nanoindentation

Cited by 13 publications

References 27 publications

A mechanistic Individual-based Model of microbial communities

A mechanistic Individual-based Model of microbial communities

Atomistic-scale modelling of nanoindentation into optical coatings

Effects of annealing temperature on nanomechanical and microstructural properties of Cu-doped In2O3 thin films

Contact Info

Product

Resources

About