Results 31 to 40 of about 88,232 (305)

Ductilizing Al-Mn strips via gradient texture

Materials Research Letters, 2023
Improved strength-ductility synergy is not uncommon among metallic materials with gradient structures of grains and twins. In this work, we report that the texture gradient innately created in Al-Mn strips by twin-roll casting is also capable of ...
Jie Kuang, Xiaolong Zhao, Xinpeng Du, Jinyu Zhang, Gang Liu, Jun Sun, Guangming Xu, Zhaodong Wang   +7 more
doaj   +1 more source

A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model

, 2004
The numerical solution of strain gradient-dependent continuum problems has been hindered by continuity demands on the basis functions. The presence of terms in constitutive models that involve gradients of the strain field means that the $C^0$ continuity
G. N. Wells, MOLARI, LUISA, K. Garikipati   +2 more
core   +1 more source

Phenotypic plasticity of European larch radial growth and wood density along a‐1,000 m elevational gradient

Plant-Environment Interactions, 2021
Why this research Matters Phenotypic plasticity is a key mechanism for sedentary long‐living species to adjust to changing environment. Here, we use mature Larix decidua tree‐ring variables collected along an elevational transect in the French Alps to ...
Margarita Escobar‐Sandoval, Luc Pâques, Patrick Fonti, Alejandro Martinez‐Meier, Philippe Rozenberg   +4 more
doaj   +1 more source

Gradient flows as a selection procedure for equilibria of nonconvex energies [PDF]

, 2006
For atomistic material models, global minimization gives the wrong qualitative behavior; a theory of equilibrium solutions needs to be defined in different terms.
Ortner, Christoph
core   +1 more source

Gradient plasticity used for modeling extrinsic and intrinsic size effects in the torsion of Au microwires

Journal of the Mechanical Behavior of Materials, 2016
The gradient plasticity theory proposed by Aifantis and coworkers has been successfully used to model size effect phenomena at the microscale and nanoscale, by introducing into the formulation an internal length scale associated with the phenomenological
Wei Xiaokun, Konstantinidis Avraam, Qi Chengzhi, Aifantis Elias   +3 more
doaj   +1 more source

Microstructure Evolution and Mechanical Properties of Austenite Stainless Steel with Gradient Twinned Structure by Surface Mechanical Attrition Treatment

Nanomaterials, 2021
Gradient structures in engineering materials produce an impressive synergy of strength and plasticity, thereafter, have recently attracted extensive attention in the material families.
Aiying Chen, Chen Wang, Jungan Jiang, Haihui Ruan, Jian Lu   +4 more
doaj   +1 more source

Strain Gradient Plasticity: Theory and Implementation

, 2020
This chapter focuses on the foundation and development of various higher-order strain gradient plasticity theories, and it also provides the basic elements for their finite element implementation.
Bardella, Lorenzo, Lorenzo Bardella, Christian F. Niordson, Niordson, Christian F.   +3 more
core   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Questioning size effects as predicted by strain gradient plasticity

Journal of the Mechanical Behavior of Materials, 2013
The analytical solution of the elastic-plastic response of a two-phase laminate microstructure subjected to periodic simple shear loading conditions is derived considering strain gradient and micromorphic plasticity models successively. One phase remains
Forest Samuel
doaj   +1 more source