Results 61 to 70 of about 12,299 (255)

NEW STRUCTURAL-METRIC METHOD FOR DETECTING PERSPECTIVE OIL AND Gas STRUCTURES (ON THE EXAMPLE OF NURIN-KHAGSKY SQUARE IN KALMYKIA)

Наука. Инновации. Технологии, 2022
Introduction: the relevance of research on the development of the most comparatively less costly method is due to the need to increase the efficiency not only of prospecting and exploration, but also the development of oil and gas fields in Russia. A new
Vladimir Mikhailovich Kharchenko, Denis Vasilievich Lapta   +1 more
doaj  

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

Advanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu, Ryan R. Rusch, Zheng Wu, Chi Chen, Pengju Shi, Hao Qiu, Ximin He   +6 more
wiley   +1 more source

Application of an original method to the design of composite beams and comparison with the American Standard NDS 2005

Sustainable Structures
In the elastic field, for beams of rectangular cross-section composed of several vertical layers of materials and linked through horizontally arranged mechanical connectors, it is necessary to know the law of horizontal shear stresses (τ_zx) to determine
Gustavo Berni
doaj   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Multi-Directional Functionally Graded Sandwich Plates: Buckling and Free Vibration Analysis with Refined Plate Models under Various Boundary Conditions

Computation
This study conducts buckling and free vibration analyses of multi-directional functionally graded sandwich plates subjected to various boundary conditions. Two scenarios are considered: a functionally graded (FG) skin with a homogeneous hard core, and an
Lazreg Hadji, Vagelis Plevris, Royal Madan, Hassen Ait Atmane   +3 more
doaj   +1 more source

Nonlocal strain gradient theory for bending, buckling, and vibration of viscoelastic functionally graded curved nanobeam embedded in an elastic medium

Advances in Mechanical Engineering, 2019
This article investigates bending, buckling, and vibration analysis in viscoelastic functionally graded curved nanobeam embedded in an elastic medium under different boundary conditions.
Mohamed NM Allam, Ahmed F Radwan
doaj   +1 more source

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

Advanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang, Bo Wang, Huajiang Ouyang, Zhigang Wu, Haohao Bi, Jiawei Xu, Mingchao Liu, Weicheng Huang   +7 more
wiley   +1 more source

Experimental Study on the Interface Shear Behavior of Clay and Cement Soil

工程科学与技术, 2021
The study on the shear characteristics and soil migration law of clay-cement soil interface is important to deeply understand the bearing and deformation behaviors of cement-soil piles and walls.
Fang XU, Le CHEN, Chunyan ZHAO, Xinyu YE, Feng LANG, Wuming LENG   +5 more
doaj  

Free vibration analysis of four parameter functionally graded plates accounting transverse shear mode

Vietnam Journal of Mechanics, 2014
In the present investigation, free vibration analysis of functionally graded material (FGM) plate is performed incorporating higher order shear deformation theory in conjunction with C0 based finite element formulation.
Gulshan Taj M. N. A., Anupam Chakrabarti, Mohammad Talha   +2 more
doaj   +1 more source