Results 121 to 130 of about 297,394 (294)

Jamming Transition In Non-Spherical Particle Systems: Pentagons Versus Disks [PDF]

, 2019
We investigate the jamming transition in a quasi-2D granular material composed of regular pentagons or disks subjected to quasistatic uniaxial compression.
Barés, J., Behringer, R. P., Bester, Cacey Stevens, Socolar, J. E. S., Xu, Y., Zhao, Y., Zheng, H.   +6 more
core   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

Advanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller, Amaya Compart, Mahnaz Mehdizadehlima, Serhii Yaroshevskyi, Christos G. Aneziris, Horst Biermann, Anja Weidner   +6 more
wiley   +1 more source

Prediction of an alternative high-pressure route to polymeric carbon dioxide as a metastable energetic material

Communications Chemistry
The use of pressure to obtain new materials that can be recovered under ambient conditions is a central problem in high-pressure physics. Despite decades of research, this goal has only been achieved in the laboratory for a few notable examples, such as ...
Reetam Paul, Jonathan C. Crowhurst, Stanimir A. Bonev   +2 more
doaj   +1 more source

Evaluation of finite element modeling methods for predicting compression screw failure in a custom pelvic implant

Frontiers in Bioengineering and Biotechnology
Introduction: Three-dimensional (3D)-printed custom pelvic implants have become a clinically viable option for patients undergoing pelvic cancer surgery with resection of the hip joint.
Yuhui Zhu, Ata Babazadeh-Naseri, Matthew R. W. Brake, John E. Akin, Geng Li, Valerae O. Lewis, Benjamin J. Fregly   +6 more
doaj   +1 more source

Tailoring of Highly Intense THz Radiation Through High Brightness Electron Beams Longitudinal Manipulation

Applied Sciences, 2016
The ultra-short electron beams, produced through the velocity bunching compression technique at the SPARC_LAB test Facility (Frascati, Italy), are used to produce Coherent Transition Radiation in the terahertz (THz) range.
Flavio Giorgianni, Maria Pia Anania, Marco Bellaveglia, Angelo Biagioni, Enrica Chiadroni, Alessandro Cianchi, Maddalena Daniele, Mario Del Franco, Domenico Di Giovenale, Giampiero Di Pirro, Massimo Ferrario, Stefano Lupi, Andrea Mostacci, Massimo Petrarca, Stefano Pioli, Riccardo Pompili, Vladimir Shpakov, Cristina Vaccarezza, Fabio Villa   +18 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Characterizations of dynamic material properties on compact pulsed power generator CQ-4

EPJ Web of Conferences, 2018
Over last two decades, the techniques of magnetically driven quasi-isentropic compression and launching high velocity flyer plates based on pulsed high current generators have being extensively used to do dynamic material experiments under extreme ...
Wang Guiji, Luo Binqiang, Zhang Xuping, Cai Jintao, Chong Tao, Zhao Jianheng, Chen Xuemiao, Tan Fuli, Sun Chengwei, Liu Cangli, Wu Gang   +10 more
doaj   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Towards fatigue-resistant steels: Interfacial fatigue crack mechanisms in complex inclusions revealed by TEM and atomic simulations

Materials & Design
Despite the significance of inclusions on fatigue properties, a thorough and physics-based understanding of the failure behavior of complex inclusions is still missing due to experimental limitations.
Ziyu Lyu, Chao Gu, Wenqi Liu, Yanping Bao, Junhe Lian   +4 more
doaj   +1 more source