Results 51 to 60 of about 36,359 (271)

Hierarchical Artificial Muscle with Nonlinear Elasticity for Antagonistic and Cyclic Robotics

Advanced Science, EarlyView.
We construct hierarchical muscles by plying nylon fibers around a heating wire. The hierarchical muscle shows a J‐shaped passive curve, which shows benefit in antagonistic muscle pair and work accumulation mechanism. We also develop a computational, first‐principle model to understand the physics of both active actuation stroke and passive J‐curve ...
Samuel Tsai, Liuyang Cheng, Ali Albazroun, Qiong Wang, Jeongmin Kim, Arman Tekinalp, Soonwook Kim, Charlie Simcox, Ryne Downing, Vagish Sivaramakrishnan, Grace Carsello, Miles Bimrose, Wonsik Eom, William P. King, Mattia Gazzola, Sameh Tawfick   +15 more
wiley   +1 more source

Rotational Stiffening Performance of Roof Folded Plates in Torsion Tests and the Stiffening Effect of Roof Folded Plates on the Lateral Buckling of H Beams in Steel Structures

Buildings
Non-structural members, such as roofs and ceilings, become affixed to main beams that are known as structural members. When such main beams experience bending or compressive forces that lead to lateral buckling, non-structural members may act to restrain
Yuki Yoshino, Yoshihiro Kimura
doaj   +1 more source

Experimental and finite element study on the inelastic lateral buckling behavior of coped I-beams

HBRC Journal, 2015
An experimental study of inelastic lateral torsional buckling of coped beams with simply supported ends is presented in this paper. Six full scale coped steel I-beam tests were conducted.
Abdelrahim K. Dessouki, Sherif A. Ibrahim, Seham A. El-Sa’eed   +2 more
doaj   +1 more source

Dynamic Behavior in Piezoresponse Force Microscopy

, 2005
Frequency dependent dynamic behavior in Piezoresponse Force Microscopy (PFM) implemented on a beam-deflection atomic force microscope (AFM) is analyzed using a combination of modeling and experimental measurements.
Abplanalp M, Alexe M, Arthur P Baddorf, Bdikin I K, Burnham N A, Eng L M, Frederix P, Ganpule C, Hirsekorn S, Hong S, Jesse S, Kalinin S V, Kalinin S V, Kalinin S V, Karapetian E, Persson B N J, Rabe U, Rabe U, Sarid D, Sergei V Kalinin, Stephen Jesse, Tiedke S, Timoshenko S, Turner J A   +23 more
core   +1 more source

Experimental and numerical studies of ferritic stainless steel tubular cross sections under combined compression and bending [PDF]

, 2015
An experimental and numerical study of ferritic stainless steel tubular cross sections under combined loading is presented in this paper. Two square hollow section (SHS) sizes—SHS 40×40×240×40×2 and SHS 50×50×250×50×2 made of Grade EN 1.4509 (AISI 441 ...
Gardner, L, Rossi, B, Young, B, Zhao, O
core   +1 more source

Multiscale Architecture and Mechanics of the Cell Nucleus: Implications for Disease, Bioengineering and Nanomedicine

Advanced Science, EarlyView.
Nuclear mechanical properties are inherently scale‐dependent, arising from a hierarchical architecture that spans DNA, chromatin, the nuclear envelope, and condensates. Experimental techniques and theoretical models are integrated into a cohesive multiscale framework linking nanoscale structural features to organelle‐level mechanical behavior.
Xinran Liu, Xin Chen, Qingyang Zhao, Weikang Tan, Lingrui Zhu, Kin Liao, Vincent Chan, Nicolae Goga, Winfred O. Larkotey, Yang Li, Yinghui Shi, Wenya Shu, Lin Wang, Weiqing Wang, Tian Jian Lu, Yulong Han   +15 more
wiley   +1 more source

Interaction curves for vibration and buckling of thin-walled composite box beams under axial loads and end moments [PDF]

, 2010
Interaction curves for vibration and buckling of thin-walled composite box beams with arbitrary lay-ups under constant axial loads and equal end moments are presented.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Machine learning models for the elastic-critical buckling moment of sinusoidal corrugated web beam

Results in Engineering
The torsional stiffness of I-beams with sinusoidal corrugated web is higher than that of flat web beams and the accuracy of the available hand-calculation methods to determine the elastic critical lateral-torsional buckling moment depends on the ...
Gábor Hajdú, Nurullah Bektaş, Andreas Müller   +2 more
doaj   +1 more source

A Study on the Effect of Adjacent Segments of a Steel l-Beam with Lateral Supports on Its Critical Moment

MATEC Web of Conferences, 2019
One of the most common failure modes in a steel beam structure is lateral torsional buckling (LTB). The unbraced length of the beam is a crucial factor for LTB analysis.
Pratiwi Naomi, Karta Wijaya Paulus
doaj   +1 more source