Results 51 to 60 of about 1,645 (111)

Intelligent Continuum Micromachines in Complex Confined Spaces

SmartBot, EarlyView.
The cover depicts a conceptual design for an intelligent continuum micromachine entering a target capsule used in fusion‐energy research through its slender gas‐fill tube. By combining route‐adaptive deformation, embedded sensing, and a functional end effector, the robot could inspect hidden defects, assess local conditions, and support localized ...
Huayang Sai, Yunyue Yang, Shuxing Xu, Jinbo Hu, Jiliang Wang, Zhehao Gan, Wei Tang, Tian‐Yun Huang   +7 more
wiley   +1 more source

HDQ-based solution strategy for in-plane nonlinear buckling of shallow steel arches with linear elastic supports

Frontiers in Physics
This paper investigates the in-plane nonlinear buckling of shallow steel arches with linear elastic supports. Differential equations of equilibrium are built considering a virtual work principle. To balance computational accuracy, efficiency, and cost, a
Zixiang Zhang, Weile Wang, Yuanyuan Liu, Junjie Pan, Weijin Xin   +4 more
doaj   +1 more source

Efficient handling of stability problems in shell optimization by asymmetric ‘worst-case’ shape imperfection [PDF]

, 2008
The paper presents an approach to shape optimization of proportionally loaded elastic shell structures under stability constraints. To reduce the stability-related problems, a special technique is utilized, by which the response analysis is always ...
Brank, Boštjan, Kegl, Marko, Harl, Branko, Oblak, Maks   +3 more
core   +1 more source

Maximum‐Entropy‐Based Meshless Modeling of Surface‐Tension‐Driven Large Deformation

International Journal for Numerical Methods in Engineering, Volume 127, Issue 17, 15 September 2026.
ABSTRACT Soft material modeling is challenging due, among others, to the substantial structural changes these materials undergo. In this context, meshless methods offer a promising alternative to overcome the limitations of established mesh‐based approximations such as finite elements. However, they introduce new challenges.
Rodrigo Castillo‐Acuna, Nicholas Gianotti, Dennis M. Kochmann   +2 more
wiley   +1 more source

Instability by Extension of an Elastic Nanorod

Nanomaterials
The static stability of an elastic, incompressible nanorod subjected to an extensional force is analyzed. The force is applied to a rigid rod that is welded to the free end of the nanorod.
Armin Berecki, Valentin Glavardanov, Sanja Mihok, Nenad Grahovac, Miodrag Zigic   +4 more
doaj   +1 more source

Highly Nonlinear Solitary Waves for Rail Buckling Prevention [PDF]

, 2013
One of the major structural problems in the railroads made of continuous welded rails is buckling in hot weather and breakage or pulling apart in cold weather.
Cai, Luyao
core  

Bronchoscopy Robot with Enhanced Flexibility and Stability via Multi‐Segment Variable Stiffness Catheter

Advanced Intelligent Systems, Volume 8, Issue 9, September 2026.
This work presents a magnetic bronchoscopy robot with a novel multi‐segment variable stiffness catheter. This catheter can not only move flexibly in the narrow bronchi but also harden according to the need to provide support. Combined with remote wireless magnetic field drive, it provides a more precise and effective solution for biopsy of deep lung ...
Shucong Yin, Bin Huang, Shiyuan Dong, Junhao Wang, Liangshen Zhao, Yang Yang, Bingkun Bao, Hongen Liao, Fang Chen, Tianqi Huang, Boyu Zhang   +10 more
wiley   +1 more source

The free vibrational characteristic of PFGM beams near the post-buckling configuration under thermal loads

Science Progress
In recent years, the study of the static and dynamic mechanical behavior of porous functionally graded material (PFGM) structures has attracted much interest.
Qiang Lyu, Yinglong Zhao, Hongyao Zeng, Yuanyuan Mu   +3 more
doaj   +1 more source

Bending Fatigue Evaluation and Failure Modes of Ultra‐Thin Silicon Chips on Flexible Substrates

FlexTech, Volume 2, Issue 2, Page 91-101, September 2026.
This study investigates the fatigue lifetime of 20‐μm‐thick chips under bending deformation. Three failure modes are identified: metal pad wearing, metal stress migration, and gold wire break. The underlying mechanisms are analyzed through micro‐scale characterization, and temperature effects on fatigue lifetime are explored.
Ying Chen, Chenyu Niu, Zhaoxian Wang, Xin Song, Dongliang Liu, Ming Xu, Yingchao Zhang, Xue Feng   +7 more
wiley   +1 more source

Global instabilities of pyramidal trusses

Trends in Computational and Applied Mathematics
This paper presents an exact analytical study of global instabilities in pyramidal trusses under large displacements. Using the stationarity of total potential energy and Green-Lagrange strain, non-linear equilibrium equations are derived for a 3-bar ...
W. T. M. Silva, G.F. Barrozo, A.A.A. Portela   +2 more
doaj   +1 more source