Results 81 to 90 of about 840,861 (292)

Strain localization in a shear transformation zone model for amorphous solids

, 2007
We model a sheared disordered solid using the theory of Shear Transformation Zones (STZs). In this mean-field continuum model the density of zones is governed by an effective temperature that approaches a steady state value as energy is dissipated.
D. Griggs, E. M. Lifshitz, J. Lewandowski, J. M. Carlson, J. S. Langer, M. Falk, M. Falk, M. L. Manning, V. V. Bulatov   +8 more
core   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Effect of intermediate principal stress and minimum principal stress unloading stress path and rate on energy evolution of sandstone under true triaxial compression

Meitan xuebao
In the process of deep coal mining, the unloading stress path and unloading rate of deep rock are complicated and changeable due to the influence of excavation and unloading.
Zhixi LIU, Guangming ZHAO, Xiangrui MENG, Zhihong QIN   +3 more
doaj   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Energy evolution of sandstone under different cyclic loading and unloading modes in true triaxial mode

矿业科学学报
To clarify the impact of different cyclic loading and unloading modes on the energy evolution of sandstone, triaxial cyclic loading and unloading tests were conducted using the self-developed TAWZ-5000/3000 rock true triaxial testing system along ...
ZHANG Qihang, MENG Xiangrui, ZHAO Guangming   +2 more
doaj   +1 more source

Effect of shear-coupled grain boundary motion on coherent precipitation

, 2019
We examine the interaction between precipitates and grain boundaries, which undergo shear-coupled motion. The elastic problem, emerging from grain boundary perturbations and an elastic mismatch strain induced by the precipitates, is analysed.
Spatschek, Robert, Weikamp, Marc
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Dynamic crushing of uniform and density graded cellular structures based on the circle arc model

Latin American Journal of Solids and Structures
A new circle-arc model was established to present the cellular structure. Dynamic response of models with density gradients under constant velocities is investigated by employing Ls-dyna 971.
Jianjun Zhang, Heng Wei, Zhihua Wang, Longmao Zhao   +3 more
doaj   +1 more source

Strain Energy Density as Failure Criterion for Quasi-Static Uni-axial Tensile Loading

Fracture and Structural Integrity, 2021
Strain energy density is successfully used as criterion for failure assessment of brittle and quasi-brittle material behavior. This work investigates the possibility to use this method to predict the strength of V-notched specimens made of PMMA under ...
Andrea Kusch, Simone Salamina, Daniele Crivelli, Filippo Berto   +3 more
doaj  

Pressure-strain-rate events in homogeneous turbulent shear flow [PDF]

A detailed study of the intercomponent energy transfer processes by the pressure-strain-rate in homogeneous turbulent shear flow is presented. Probability density functions (pdf's) and contour plots of the rapid and slow pressure-strain-rate show that ...
Brasseur, James G., Lee, Moon J.
core   +1 more source