Results 41 to 50 of about 1,742 (234)

Guideline for Forming Stiffened Panels by Using the Electromagnetic Forces

open access: yesMetals, 2016
Electromagnetic forming (EMF), as a high-speed forming technology by applying the electromagnetic forces to manufacture sheet or tube metal parts, has many potential advantages, such as contact-free and resistance to buckling and springback.
Jinqiang Tan, Mei Zhan, Shuai Liu
doaj   +1 more source

Dynamic Buckling of Stiffened Panels

open access: yesProcedia Engineering, 2015
AbstractDesignof stiffened panels requires evaluating their behavior under any loading circumstances by considering initial geometric imperfections and the altering effects resulting from eventual material degradation. Both static and dynamic loading scenarios are to be investigated in order to assess safety for buckling strength of these vital ...
Mouhat, Ouadia, Abdellatif, Khamlichi
openaire   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

Impact Location on a Fan-Ring Shaped High-Stiffened Panel Using Adaptive Energy Compensation Threshold Filtering Method

open access: yesApplied Sciences, 2019
The increase in the number of space debris is a serious threat to the safe operation of in-orbit spacecraft. The propagation law of the impact signal in the stiffened panel of the spacecraft’s sealed bulkhead is very complicated, and there is less ...
Yibo Li   +5 more
doaj   +1 more source

Miniature Soft Robot With Magnetically Reprogrammable Surgical Functions

open access: yesAdvanced Materials, EarlyView.
Miniature soft robots have great prospects to revolutionize minimally invasive treatments. Here we present a miniature soft robot, which can be reprogrammed to perform five surgical functionalities with six‐degrees‐of‐freedom motions. This soft robot can prospectively make minimally invasive surgery considerably safer and painless, and enable ...
Chelsea Shan Xian Ng   +4 more
wiley   +1 more source

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

open access: yesAdvanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri   +7 more
wiley   +1 more source

A parametric study on effects of pitting corrosion on stiffened panels’ ultimate strength

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2020
Pitting corrosion commonly shaped in hull structure due to marine corrosive environment seriously causes the deterioration of structural performance.
Liang Feng   +3 more
doaj   +1 more source

Overlap-stiffened panels for optimized buckling performance under minimum steering radius constraints

open access: yesComposites Part C: Open Access, 2021
Recent research on variable stiffness laminates have shown both numerically and experimentally that further improvement on the buckling performance is possible by incorporating overlaps that result in variable thickness profiles.
Raphael Ummels, Saullo G.P. Castro
doaj   +1 more source

A 3D‐Printed Blister Test Platform for Quantifying Biointerface Adhesion Mechanisms

open access: yesAdvanced Materials Interfaces, EarlyView.
A 3D‐printed blister platform enables energy‐resolved characterization of soft hydrogel–rigid interfaces. Integrating precision pressure control with hyperelastic modeling directly quantifies adhesion energy (G) and R‐curve toughening. Results reveal that modulating hydrogel concentration and surface roughness drives a tunable transition from cohesive ...
Yoontae Kim   +4 more
wiley   +1 more source

A simple closed-form analytical model for the column buckling of omega-stinger-stiffened panels with periodic boundary conditions

open access: yesResults in Engineering, 2020
During the preliminary design of stiffened panels, the stability behaviour is critical and both buckling modes, global and local, have to be considered in order to avoid panel configurations in which the minimum stiffness of the stringers is not achieved.
Jakob C. Schilling   +1 more
doaj   +1 more source

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