Disorder induced brittle to quasi-brittle transition in fiber bundles [PDF]
, 2011 We investigate the fracture process of a bundle of fibers with random Young modulus and a constant breaking strength. For two component systems we show that the strength of the mixture is always lower than the strength of the individual components.
E. Karpas +3 more
core +2 more sources
Relationship of structure and stiffness in laminated bamboo composites [PDF]
, 2018 Laminated bamboo in structural applications has the potential to change the way buildings are constructed. The fibrous microstructure of bamboo can be modelled as a fibre-reinforced composite.
core +2 more sources
The Invalidity of the Laplace Law for Biological Vessels and of Estimating Elastic Modulus from Total Stress vs. Strain: a New Practical Method [PDF]
, 2013 The quantification of the stiffness of tubular biological structures is often obtained, both in vivo and in vitro, as the slope of total transmural hoop stress plotted against hoop strain. Total hoop stress is typically estimated using the "Laplace law."
Brasseur, James G., Costanzo, Francesco
core +1 more source
Fatigue crack growth in thin notched woven glass composites under tensile loading. Part II: modelling [PDF]
, 2011 Fatigue propagation of a through-the-thickness crack in thin woven glass laminates is difficult to model when using homogeneous material assumption. Crack growth depends on both the fatigue behaviour of the fibres and of the matrix, these two phenomena ...
Barrau, Jean-Jacques +3 more
core +3 more sources
Macroscopic model with anisotropy based on micro-macro informations [PDF]
, 2014 Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the microstructure is not accessible and thus neglected.
Kumar, Nishant +2 more
core +5 more sources
Crumpling wires in two dimensions
, 2008 An energy-minimal simulation is proposed to study the patterns and mechanical properties of elastically crumpled wires in two dimensions. We varied the bending rigidity and stretching modulus to measure the energy allocation, size-mass exponent, and the ...
P. G. de Gennes +3 more
core +1 more source
Analysis of nanoindentation of soft materials with an atomic force microscope [PDF]
, 2011 Nanoindentation is a popular experimental technique for characterization of the mechanical properties of soft and biological materials. With its force resolution of tens of pico-Newtons, the atomic force microscope (AFM) is well-suited for performing ...
Notbohm, Jacob +2 more
core +1 more source
Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
wiley +1 more source
Auxetic two-dimensional lattice with Poisson's Ratio arbitrarily close to -1
, 2014 In this paper we propose a new lattice structure having macroscopic Poisson's ratio arbitrarily close to the stability limit -1. We tested experimentally the effective Poisson's ratio of the micro-structured medium; the uniaxial test has been performed ...
Brun, M., Cabras, L.
core +1 more source
Geosynthetic-encased stone columns: analytical calculation model [PDF]
, 2011 This paper presents a newly developed design method for non-encased and encased stone columns. The developed analytical closed-form solution is based on previous solutions, initially developed for non-encased columns and for non-dilating rigid-plastic ...
Logar, Janko +2 more
core +1 more source