Results 71 to 80 of about 18,112 (283)

The Fast Crack Growth Analysis Under Dynamic Loading with the Help of Adina

open access: yesEngineering Transactions, 1994
Finite element modeling of dynamic crack growth during impact bend testing is performed using ADINA 6.1. Results are compared with the numerical data reported in literature.
L.V. Rokach, A. Neimitz
doaj  

Side cracked plated subject to combined direct and bending forces [PDF]

open access: yes
The opening mode stress intensity factor and the associated crack mouth displacement are comprehensively treated using planar boundary collocation results supplemented by end point values from the literature.
Gross, B., Srawley, J. E.
core   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

Evaluation of Cracking Indices for Asphalt Mixtures Using SCB Tests at Different Temperatures and Loading Rates [PDF]

open access: yes, 2018
In recent years, there has been a shift towards implementing performance based pavement specifications (PBPS) to increase reliability of asphalt concrete mixture specifications and enhance service lives of roadways.
Haslett, Katie E
core   +1 more source

Purpose‐Adaptable Reinforced 3D Hyaluronic‐Acid Based Platform to Study Pathomechanisms of the Central Nervous System

open access: yesAdvanced Healthcare Materials, EarlyView.
Platform system to create biofabricated 3D spinal cord tissue models: Combining high resolution PCL fiber placement, a customized, hyaluronic acid‐based hydrogel, two cell types (spinal cord neurons and astrocytes) together with three distinct laminin isoforms allow the formation of functional cell–cell network interactions.
Nicoletta Murenu   +12 more
wiley   +1 more source

Opinion: Gavage Administration of MXene as a Route‐Specific Alternative to Intravenous Injection into the Bloodstream of Laboratory Animals for Reducing Systemic Nanotoxicity Risks in Immunosuppression and Post‐Transplantation Models with Bile Acid Modification

open access: yesAdvanced Healthcare Materials, EarlyView.
Recent studies reported immunosuppressive properties of specific MXene nanomaterials. Their intravenous injection into the bloodstream of laboratory animals has been a common delivery method to suppress systemic inflammation and prevent transplant rejection.
Alireza Rafieerad   +2 more
wiley   +1 more source

Design and Development of an Accessible Clip Gauge Extensometer for CMOD Measurement in Fracture Mechanics

open access: yesEngineering Reports
This work reports on the design, construction, calibration, and validation of a low‐cost, clip‐on extensometer for crack mouth opening displacement (CMOD) measurements in fracture mechanics specimens.
Isaías Chamorro‐Cruz   +8 more
doaj   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

open access: yesAdvanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi   +4 more
wiley   +1 more source

General expressions for the stress intensity factor of a one-point bend beam [PDF]

open access: yes, 2007
The aim of this work is to find general expressions to determine the stress intensity factor of a one point bend beam like specimen, whether from the measurement of the applied load or the crack mouth opening displacement.
Fernández Sáez, José   +2 more
core   +2 more sources

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

open access: yesAdvanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro   +13 more
wiley   +1 more source

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