Results 121 to 130 of about 8,141 (305)

Virtual Crack Closure Technique Based on Coupled FE/EFG Method

工程科学与技术, 2011
:A virtual crack closure technique based on EFG method for thread-shape crack was introduced. The cracked component was discretized and the displacement field was determined using a coupled FE/EFG method, by which EFG nodes were arranged in the vicinity ...
doaj  

Crack stability analysis of the crack in surface protective layers based on crack mouth opening displacement

, 2005
Paper deals with stability analysis of a crack in a coating on a substrate. It is considered that the crack is perpendicularly oriented to the interface between the coating and the substrate and the crack tip lies directly on the material interface.
Bareš, Pavel
core  

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

Advanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo, Daniela Winsley Valereto Friozi, Vinícius de Oliveira, Marcia Cristina Branciforti   +3 more
wiley   +1 more source

Combined ambient vibration and surface displacement measurements for improved progressive failure monitoring at a toppling rock slab in Utah, USA

Frontiers in Earth Science
Seismic resonance and surface displacement measurements can be implemented in tandem to improve landslide characterization and progressive failure monitoring.
Erin K. Jensen, Jeffrey R. Moore, Paul R. Geimer, Paul R. Geimer, Riley Finnegan   +4 more
doaj   +1 more source

Finite element simulation of delamination growth in composite materials using LS-DYNA

, 2009
In this paper, a modified adaptive cohesive element is presented. The new elements are developed and implemented in LS-DYNA, as a user defined material subroutine (UMAT), to stabilize the finite element simulations of delamination propagation in ...
Elmarakbi, Ahmed, Fukunaga, H., Hu, Ning, Fukunaga, Hisao   +3 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source

Virtual Crack Closure Technique Based on Coupled FE/EFG Method

工程科学与技术, 2012
:A virtual crack closure technique based on EFG method for thread-shape crack was introduced. The cracked component was discretized and the displacement field was determined using a coupled FE/EFG method, by which EFG nodes were arranged in the vicinity ...
doaj  

Effect of cryogenic conditions on the critical crack tip opening displacement for the laminated material AA2519-AA1050-Ti6Al4V-T62

Journal of Materials Research and Technology
In the case of operating technical objects in conditions that accelerate material wear, it is necessary to adequately protect the object from the aggressive working environment.
Maciej Kotyk
doaj   +1 more source