Results 61 to 70 of about 1,375 (191)

Mechanical response of red clay under different stress paths and loading and unloading rates

Shuiwen dizhi gongcheng dizhi
During foundation pit excavation, soils are subjected to multiple coupled factors and present complex failure characteristics, making it difficult to capture their mechanical behavior through single-factor analysis. In this study, the natural red clay in
Yongfen RUAN, Zhenjie TANG, Yigao HUAI, Shaoqi ZHENG, Yuanhai ZHOU   +4 more
doaj   +1 more source

Visualizing shear bands in 3-D using axisymmetric sample: An experimental study

Journal of King Saud University: Engineering Sciences, 2017
In this study a qualitative description of the occurrence of shear bands produced by a sudden impact on an axisymmetric specimen made of medium carbon steel 0.45% C is given.
W. Khraisat, N.A. Rawashdeh, L. Nyborg
doaj   +1 more source

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Impact of seasonal hydrological changes on the small-strain shear modulus of undisturbed and remolded highly expansive soils

Journal of Rock Mechanics and Geotechnical Engineering
In the natural environment, the soil structure can be weakened by temperature fluctuations and climatic changes. Nevertheless, the dynamic behavior of expansive soils, especially those with high swelling and pronounced fissure properties, subjected to ...
Chuanyong Xu, Lingwei Kong, Tianguo Li, Zhenhua Zhou, Junbiao Yan, Zhaowei Shang   +5 more
doaj   +1 more source

Elongational Viscosity Measurements Using a Semi-Hyperbolic Die

Applied Rheology, 2006
The lubricated semi-hyperbolic die has been proposed as a technique for generating uni-axial extensional flow and, hence, as a device for measuring elongational viscosity. Two methods for extracting extensional viscosity data for polymer melts in laminar
Baird D. G., Huang J.
doaj   +1 more source

Mechanical Properties and Testing Strategies for Two‐Photon Lithography: A Review of Current Practices and Emerging Challenges

Laser &Photonics Reviews, EarlyView.
Two‐photon lithography enables the fabrication of complex 3D microstructures with tunable mechanical properties spanning from soft hydrogels to rigid hybrid networks. This review summarizes how material composition, printing parameters, and post‐processing govern stiffness and viscoelasticity, highlighting advanced characterization methods and emerging
Dalila Fontana, Edoardo Rossi, Marco Sebastiani, Edoardo Bemporad, Angelo Accardo, Alberto Rainer, Enrico D. Lemma   +6 more
wiley   +1 more source

A Comparison of Classical Constitutive Models for High‐Entropy Alloy Behavior: Effects of Medium Strain Rates and Temperature on Plastic Flow

Materials Genome Engineering Advances, EarlyView.
Four constitutive models are evaluated for FeCoNiCr and Al0.6FeCoNiCr HEAs under wide temperature and strain‐rate conditions. The predictive capabilities and limitations of each model are then critically assessed, with particular emphasis on strain rate sensitivity, temperature dependence, and physically unrealistic responses at extreme loading ...
Yooseob Song, Daniel Garcia‐Gonzalez, Tomasz Jankowiak, Alexis Rusinek   +3 more
wiley   +1 more source

Effects of Ambient Moisture and Large‐Strain Dynamic Preloading on the Dynamic Properties of the EAC‐1A Regolith Simulant

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The EAC‐1A lunar mare simulant, a silty sand, was selected by the European Astronaut Center (EAC) for use in the LUNA analogue facility's lunar simulation testbed. Its stress‐ and strain‐dependent shear modulus and damping ratio were determined via resonant column testing on specimens prepared either from ambient moisture material or oven ...
Christos Vrettos
wiley   +1 more source

A Review of Advances in Composite Materials, Structural Optimization, and Machine Learning for Wind Turbine Blades: Challenges and Future Perspectives

Polymer Composites, EarlyView.
Overview of the holistic engineering lifecycle and core research pillars for wind turbine blades. ABSTRACT This paper reviews recent advancements across the lifecycle of wind turbine blades, focusing on three interconnected areas: advanced composites, structural optimization, and machine learning (ML) diagnostics. In materials, we highlight progress in
Kemal Hasirci, Denizhan Yavas, Alaeddin Burak Irez   +2 more
wiley   +1 more source

Exploring biofiber properties and their influence on biocomposite tensile properties

Polymer International, EarlyView.
The study measured the physical, flow and chemical properties of 10 biofibers. It characterized the tensile properties of derived biocomposites and linked them using regression models, showing robust predictive performance. Abstract Biofibers serve as effective reinforcements for neat polylactic acid (PLA) in biocomposites, offering an attractive ...
Oluwafemi A. Oyedeji, Jocelyn Hess, Xianhui Zhao, Luke Williams, Rachel Emerson, Erin Webb   +5 more
wiley   +1 more source