Results 51 to 60 of about 439,037 (364)

Research on Acoustic Emission Characteristics and Crack Evolution during Rock Failure under Tensile and Tensile- and Compressive-Shear Stress States

Applied Sciences
Tensile, compressive-shear, and tensile-shear failure are three typical failure modes of rock- and lining-support structural materials in underground engineering. Comparative studies of the acoustic emission (AE) evolution characteristics of specimens of
Yifan Xu, Jie Hu, Peng He, Gang Wang, Haolan Pan   +4 more
doaj   +1 more source

Evaluation of hoof horn quality by tensile test and hardness test using acoustic emission [PDF]

Journal of Central European Agriculture
The research aimed to explore the use of tensile tests and hardness tests in combination with acoustic emission to evaluate the physical properties of hoof horn quality in dairy cows.
Zdenek Havliček, Ivana Novotna, Lucie Langova, Petr Dostal, Jiri Votava, Petr Doležal, Luboš Zabransky   +6 more
doaj   +1 more source

A multifunctional rock testing system for rock failure analysis under different stress states: Development and application

Journal of Rock Mechanics and Geotechnical Engineering, 2022
The stress state in a rock mass is complex. Stress redistribution around underground excavation may lead to various failure modes, including compressive-shear, tensile-shear, and tensile failures.
Shucai Li, Jie Hu, Florian Amann, Liping Li, Hongliang Liu, Shaoshuai Shi, Pooya Hamdi   +6 more
doaj   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Investigation on the thermal butt fusion performance of the buried high density polyethylene piping in nuclear power plant

Nuclear Engineering and Technology, 2019
This paper presents the effect of fusion procedure on the fusion performance of the thermal butt fusion in the safety class III buried HDPE piping per various tests performed, including high speed tensile impact, free bend, blunt notched tensile, notched
Jong-Sung Kim, Young-Jin Oh, Sun-Woong Choi, Changheui Jang   +3 more
doaj   +1 more source

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Evaluation of Prediction Accuracy for Anisotropic Yield Functions Using Cruciform Hole Expansion Test

Journal of Manufacturing and Materials Processing, 2020
To evaluate the prediction accuracy of the anisotropic yield function, we propose an original cruciform hole expansion test. Displacements on two axes were applied to the cruciform specimens with a hole in the center.
Hideo Tsutamori, Toshiro Amaishi, Ray Rizaldi Chorman, Matthias Eder, Simon Vitzthum, Wolfram Volk   +5 more
doaj   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source

Ideal strengths and bonding properties of PuO2 under tension

, 2010
We perform a first-principles computational tensile test on PuO$_{2}$ based on density-functional theory within local density approximation (LDA)+\emph{U} formalism to investigate its structural, mechanical, magnetic, and intrinsic bonding properties in ...
Bader R F W, Bao-Tian Wang, Ping Zhang, Sun B, Tang W   +4 more
core   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source