Results 101 to 110 of about 29,135 (304)

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

Formation and deformation mechanisms of gradient structures: The role of strain hardening

Materials & Design
Gradient structures (GS) have emerged as a focal point due to their capability to overcome the performance limitations of homogeneous materials. In this study, GS was prepared using the cyclic torsion method for low-carbon (LC) and twinning-induced ...
Taifeng Cao, Zhouzhu Mao, Shiyu Du, Xiaofeng Qin, Aiguo Pi, Tuanwei Zhang, Zhihua Wang   +6 more
doaj   +1 more source

Indentation model and strain gradient plasticity law for glassy polymers

, 1999
Plastic deformation of metals is generally a function of the strain. Recently, both phenomenological and dislocation-based strain gradient plasticity laws were proposed after strain gradients were experimentally found to affect the plastic deformation of
Chong, Arthur C.M., Lam, David C.C.
core   +1 more source

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

Advanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle, María Ángeles Navacerrada, Johan Christensen, Carlos González   +3 more
wiley   +1 more source

Determination of Limiting Deformations at Testing Cylindrical Samples for Tension

Проблеми трибології
This paper proposes a method for calculating limiting deformations under conditions of localized deformation during tensile testing. The method for calculating limiting deformations was used to construct plasticity diagrams under conditions of strain ...
I. Iu. Kyrytsya, O.V. Petrov, I.V. Vishtak, S.I. Sukhorukov   +3 more
doaj   +1 more source

Dynamic Strength and Anisotropy of Dmls Manufactured Maraging Steel

Communications, 2019
This paper deals with maraging steel, as a prospective material for the 3D printed lightened structural parts of transport means. Direct Metal Laser Sintering technology was tested for creation of a thin-wall structure with defined internal geometry. The
Eva Schmidova, Premysl Hojka, Bohumil Culek, Filip Klejch, Michal Schmid   +4 more
doaj   +1 more source

Experimental Assessment of Strain Gradient Plasticity

MRS Proceedings, 2000
AbstractClassical plasticity theories generally assume that the stress at a point is a function of strain at that point only. However, when gradients in strain become significant, this localization assumption is no longer valid. These conventional models fail to display a ‘size effect’.
Monica M. Barney, Geoffrey H. Campbell, James S. Stölken, Adam J. Schwartz, Jürgen M. Plitzko, Wayne E. King, John W. Morris   +6 more
openaire   +2 more sources

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Strong and ductile medium Mn steel without transformation-induced plasticity effect

Materials Research Letters, 2018
The conventional alloy design of medium Mn steel is to optimize the transformation-induced plasticity (TRIP) effect. Here we show that a dual-phase heterogeneous structure is sufficient to develop a medium Mn steel with high yield strength (∼1.2 GPa) and
B. B. He, M. X. Huang
doaj   +1 more source

Computational strain gradient crystal plasticity

, 2014
A numerical method for viscous strain gradient crystal plasticity theory is presented, which incorporates both energetic and dissipative gradient effects.
Kysar, Jeffrey W., Niordson, Christian Frithiof   +1 more
core   +1 more source