Results 101 to 110 of about 427,015 (306)

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Risk prediction of second hip fracture by bone and muscle density of the hip varies with time after first hip fracture: A prospective cohort study

Bone Reports
Purpose: Predictors of ‘imminent’ risk of second hip fracture are unknown. The aims of the study were to explore strength of hip areal bone mineral density (aBMD), and muscle area and density for predicting second hip fracture at different time intervals.
Ling Wang, Minghui Yang, Yufeng Ge, Yandong Liu, Gang Wang, Yongbin Su, Zhe Guo, Lu Yin, Pengju Huang, Jian Geng, Glen M. Blake, Bo He, Shiwen Zhu, Xiaoguang Cheng, Xinbao Wu, Hannu T. Aro, Annegreet Vlug, Klaus Engelke   +17 more
doaj   +1 more source

Integration of Adaptive Neuro-Fuzzy Inference System, Neural Networks and Geostatistical Methods for Fracture Density Modeling

Oil & Gas Science and Technology, 2014
Image logs provide useful information for fracture study in naturally fractured reservoir. Fracture dip, azimuth, aperture and fracture density can be obtained from image logs and have great importance in naturally fractured reservoir characterization ...
Ja’fari A., Kadkhodaie-Ilkhchi A., Sharghi Y., Ghaedi M.   +3 more
doaj   +1 more source

The quantitative prediction of tectonic fractures of Longmaxi formation in Dingshan area, southeastern Sichuan Basin

Earth Sciences Research Journal, 2019
Tectonic fractures are a significant factor for production of the Longmaxi formation in Dingshan area. The analyse of the distribution and development degree of tectonic fractures is the main research method in present-day.
Jiatong Xie, Qirong Qin, Cunhui Fan, Dongfeng Hu, Hu Li   +4 more
doaj   +1 more source

Characterization of sintered SiC by using NDE [PDF]

Capabilities of projection microfocus X-radiography and of ultrasonic velocity and attenuation for characterizing silicon carbide specimens were assessed. Silicon carbide batches covered a range of densities and different microstructural characteristics.
Baaklini, George Y.
core   +1 more source

Rheocasting versus Die Casting: An Insight into the Low‐Cycle Fatigue Behavior of AlSi7Mg0.6

Advanced Engineering Materials, EarlyView.
The study compares rheocast lightweight components with high‐pressure die cast materials regarding microstructure and fatigue behavior. Rheocast process offers higher efficiency due to lower casting temperatures. Despite some microstructural differences, both processes show similar strengths (yield strength 125 MPa, tensile strength 240 MPa).
Julia Richter, Thomas Wegener, Andreas Schilling, Martin Fehlbier, Thomas Niendorf   +4 more
wiley   +1 more source

Thermal shock and erosion resistant tantalum carbide ceramic material [PDF]

, 1978
Ceramic tantalum carbide artifacts with high thermal shock and mechanical erosion resistance are provided by incorporating tungsten-rhenium and carbon particles in a tantalum carbide matrix. The mix is sintered by hot pressing to form the ceramic article
Honeycutt, L., III, Manning, C. R.
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

Particle flow simulation experiments on the influence of non-penetrating random fractures on the deformation and failure characteristics of sandstone

Results in Engineering
Fractures in rock masses are significant factors that weaken the strength of rock masses and alter their failure modes, posing threats to the safety of various geotechnical engineering projects.
Wangxuan Zhu, Qingbiao Guo, Xiang Hua, Jin Luo, Jiasheng Yang   +4 more
doaj   +1 more source

Dynamic Fracture in Single Crystal Silicon

, 1999
We have measured the velocity of a running crack in brittle single crystal silicon as a function of energy flow to the crack tip. The experiments are designed to permit direct comparison with molecular dynamics simulations; therefore the experiments ...
Hauch, Jens A., Holland, Dominic, Marder, M. P., Swinney, Harry L.   +3 more
core   +2 more sources