Results 71 to 80 of about 844,837 (296)

Constitutive Model for Material Comminuting at High Shear Rate [PDF]

, 2013
The modeling of high velocity impact into brittle or quasibrittle solids is hampered by the unavailability of a constitutive model capturing the effects of material comminution into very fine particles.
Bazant, Zdenek P., Caner, Ferhun C.
core  

Theory of Magnetic Anisotropy in III_{1-x}Mn_{x}V Ferromagnets

, 2000
We present a theory of magnetic anisotropy in ${\rm III}_{1-x}{\rm Mn}_{x}{\rm V}$ diluted magnetic semiconductors with carrier-induced ferromagnetism.
A. Baldereschi, A. H. MacDonald, A. Haury, A. K. Bhattacharjee, B. Bastard, F. Bassani, F. Matsukura, G. L. Bir, H. Munekata, H. Munekata, H. Ohno, H. Ohno, H. Ohno, H. Ohno, Hideo Ohno, J. A. Gaj, J. Brum, J. K. Furdyna, J. König, J. M. Luttinger, J. Okabayashi, M. Abolfath, M. Altarelli, R. Skomski, R. Skomski, T. Dietl, T. Jungwirth, T. Jungwirth, W. W. Chow   +28 more
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Dissipated energy in undrained cyclic triaxial tests [PDF]

, 2015
Energy-based methods are an emerging tool for the evaluation of liquefaction potential. These methods relate excess pore water pressure build-up to seismic energy dissipated per unit volume.
Azeiteiro, RJN, Coelho, PALF, Grazina, JC, Taborda, DMG   +3 more
core  

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

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Antiferroelectric domain modulation enhancing energy storage performance by phase-field simulations

Journal of Materiomics
Antiferroelectric materials represented by PbZrO3(PZO) have excellent energy storage performance and are expected to be candidates for dielectric capacitors. It remains a challenge to further enhance the effective energy storage density and efficiency of
Ke Xu, Shiyu Tang, Changqing Guo, Yu Song, Houbing Huang   +4 more
doaj   +1 more source

Quantitative Prediction of 3-D Multiple Parameters of Tectonic Fractures in Tight Sandstone Reservoirs Based on Geomechanical Method

IEEE Access, 2018
Conventional fracture characterization model for low-permeability tight reservoirs cannot be directly built through data statistical method and simplified strain energy density method under high confining pressures.
Jianwei Feng, Junsheng Dai, Jinming Lu, Xizhe Li   +3 more
doaj   +1 more source

Geometrical and electronic structures of the (5, 3) single-walled gold nanotube from first-principles calculations

, 2007
The geometrical and electronic structures of the 4 {\AA} diameter perfect and deformed (5, 3) single-walled gold nanotube (SWGT) have been studied based upon the density-functional theory in the local-density approximation (LDA).
A. M. Rappe, D. W. Brenner, G. Dresselhaus, G. Kresse, Jinming Dong, Xiaoping Yang   +5 more
core   +1 more source