Results 51 to 60 of about 94,545 (265)

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

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

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

Advanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao, Emad M. Elgallad, Alexandre Maltais, X.‐Grant Chen   +3 more
wiley   +1 more source

Study on Composite Fracture Characteristics and Hydraulic Fracturing Behavior of Hard Rock

Applied Sciences
To investigate the influence of non-singular terms (T stress) in the stress field on the composite fractures of hard rock Type I–II, such as rock splitting failure and hydraulic fracture propagation, this study focused on hard rocks in metallic mines ...
Xiaoyu Tang, Wen Wan, Zhenxing Lu, Wei Chen   +3 more
doaj   +1 more source

Cross-Sectional Investigation of Stress Fractures in German Elite Triathletes

Sports, 2019
Triathlon is a popular sport for both recreational and competitive athletes. This study investigated the rates and patterns of stress fractures in the German national triathlon squad.
Pauline Neidel, Petra Wolfram, Thilo Hotfiel, Martin Engelhardt, Rainer Koch, Geoffrey Lee, Stefan Zwingenberger   +6 more
doaj   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Epidemiology, Performance, and Return to Sport After Rib Fracture in Professional Baseball Players

Orthopaedic Journal of Sports Medicine
Background: Baseball players are vulnerable to stress-related injuries due to the biomechanics required to perform successfully, and stress fractures can occur via overuse. Baseball players can also sustain traumatic fractures via collision.
Sanjiv Gopalkrishnan MD, MBA, Karen L. Hernandez BS, Bradley Lambert PhD, Haley M. Goble MHA, CRCC, David M. Lintner MD, Robert A. Jack MD   +5 more
doaj   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Fracture characteristics and its genesis of tight reservoir in Xujiahe formation of central Yuanba area in Sichuan basin

Youqicang pingjia yu kaifa, 2018
The tight gas reservoir in the central Yuanba area of Sichuan basin is one of the major breakthrough in oil and gas survey in recent years. The fractures have important influence on the migration, enrichment and production capacity of the natural gas ...
Li Hu, Fan Cunhui, Qin Qirong, Zhang Wei, Wu Quanhe   +4 more
doaj  

Stress sensitivity characteristics of tight sandstone of Xujiahe Formation in southern part of Sichuan Basin

Youqi dizhi yu caishoulu
Tight sandstone reservoirs have poor physical properties and complex pore structures， so hydraulic fracturing technology is usually used to improve the beneficial development of tight sandstone reservoirs.
ZHENG Lingli, WANG Sihui, XIAO Wenlian, YANG Yubin, LI Yuanmin, CHEN Muyao, CHEN Haoyu   +6 more
doaj   +1 more source