Ingomar L. Jäger

TL;DR: It is shown that the nanocomposites in nature exhibit a generic mechanical structure in which the nanometer size of mineral particles is selected to ensure optimum strength and maximum tolerance of flaws (robustness) and the widely used engineering concept of stress concentration at flaws is no longer valid for nanomaterial design.

TL;DR: A model with a staggered array of platelets that is in better agreement with results on molecular packing in collagen fibrils and that accounts for an increase of both elastic modulus and fracture stress with the amount of mineral in the fibril is proposed.

TL;DR: Thesticky chain model, a freely jointed chain with weak bonds between subsequent joints, is applicable even for the deformation of macromolecules with only a few discrete unfolding elements, yielding physical quantities from experimental results using simple formulae instead of a host of MC computations.

TL;DR: Experimental evidence is compiled which indicates that for polymers and organic materials a logarithmic dependence of the deformation force on the deformed rate is more appropriate than linear "Newtonian" friction.

TL;DR: In this paper, the authors extended the calculation of Saha and Nix of the reduced elastic modulus of a thin film on a substrate by taking the indenter shape into account for an idealized pyramidal or conical indenter.