Results 101 to 110 of about 141,844 (301)

Folded fabric tunes rock deformation and failure mode in the upper crust

Scientific Reports, 2017
The micro-mechanisms of brittle failure affect the bulk mechanical behaviour and permeability of crustal rocks. In low-porosity crystalline rocks, these mechanisms are related to mineralogy and fabric anisotropy, while confining pressure, temperature and
F. Agliardi, M. R. Dobbs, S. Zanchetta, S. Vinciguerra   +3 more
doaj   +1 more source

A finite element strategy coupling a gradient-enhanced damage model and cohesive cracks for quasi-brittle materials [PDF]

, 2013
A new combined strategy to describe failure of quasi-brittle materials is presented thus allowing the complete description of the process, from initiation of damage to crack propagation.
Rodríguez Ferran, Antonio, Tamayo-Mas, Elena   +1 more
core  

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

A damage model with non-convex free energy for quasi-brittle materials

, 2010
A state coupling between the hydrostatic (volumetric) and deviatoric parts of the free energy is introduced in a damage mechanics model relevant for the quasi-brittle materials.
François, Marc Louis Maurice
core   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Compressive damage constitutive model for brittle coal based on the compaction effect and linear energy dissipation law

International Journal of Coal Science & Technology
The study of the mechanical property and damage state of coal materials under compression is a fundamental area of research in underground mining engineering. Drawing upon the compaction effect and linear energy dissipation (LED) law, a novel compressive
Fengqiang Gong, Lei Xu, Mingzhong Gao, Yingjie Zhao, Peilei Zhang   +4 more
doaj   +1 more source

Size effects in statistical fracture

, 2009
We review statistical theories and numerical methods employed to consider the sample size dependence of the failure strength distribution of disordered materials.
Bazant Z P, Chakrabarti B K, da Vinci L, de Arcangelis L, Freudenthal A M, Gumbel E J, Mikko J Alava, Mosolov A B, Phani K V V Nukala, Pierce F T, Stefano Zapperi, van Mier J G M, Weibull W   +12 more
core   +1 more source

Dynamic Bonds Enable Repair and Reprocessing of Glycol‐Modified PET

Advanced Functional Materials, EarlyView.
Dynamic hindered urea bonds enable rapid healing in glycol‐modified PET‐based polyurethanes. Tuning the hindered‐amine content allows these polymers to balance mechanical integrity with fast repair, achieving complete scratch disappearance in 30 s at 130°C.
Chaninya Mak‐iad, José Augusto Berrocal, Georges J. M. Formon, Christoph Weder   +3 more
wiley   +1 more source

Nanoscale damage during fracture in silica glass [PDF]

, 2006
We report here atomic force microscopy experiments designed to uncover the nature of failure mechanisms occuring within the process zone at the tip of a crack propagating into a silica glass specimen under stress corrosion.
Bonamy, Daniel, Bouchaud, Elisabeth, Dalmas, Davy, Guillot, Claude, Ponson, Laurent, Prades, Silke, Ravi-Chandar, K., Rountree, Cindy   +7 more
core   +2 more sources

Mechanochromism of Glassy Polymers Enabled by a Loop‐Forming Supramolecular Mechanophore

Advanced Functional Materials, EarlyView.
The supramolecular mechanophore LOOP is covalently introduced into glassy polymers, capable of reporting force‐induced pre‐failure damage and local fracture events in polymer glasses. Under different mechanical deformation modes, including grinding, tensile stretching, and scratching, LOOP probes irreversible events in polymer glasses through a ...
Linlin Deng, Chantal Graafsma, Felix Meyenhofer, Iulia Scarlat, Luca Bertossi, Christoph Weder, Jess M. Clough   +6 more
wiley   +1 more source