Results 11 to 20 of about 329,622 (165)

Frequency-Adaptable Tuned Mass Damper Using Metal Cushions

open access: yesVibration, 2021
A frequency-adaptable tuned mass damper (FATMD) using metal cushions as tuneable stiffness components is presented. The dynamic properties of the cushions with respect to stiffness and damping are investigated experimentally in this context.
Sebastian Rieß   +2 more
doaj   +1 more source

Design of a Random Decrement Method Based Structural Health Monitoring System

open access: yesShock and Vibration, 2012
Structural Health Monitoring (SHM) has reached a high importance in numerous fields of civil and mechanical engineering. Promising damage detection approaches like the Damage Index Method, Gapped Smoothing Technique and Modal Strain Energy Method require
H. Buff   +4 more
doaj   +1 more source

Cathodic protection of reinforcement in concrete – experience and development over 30 years [PDF]

open access: yesMATEC Web of Conferences, 2019
This paper presents developments over 30 years in the field of cathodic protection of steel reinforcement in concrete in The Netherlands and elsewhere.
Polder Rob, Peelen Willy
doaj   +1 more source

Quantification of identical and unique segments in ethylene-propylene copolymers using two dimensional liquid chromatography with infra-red detection [PDF]

open access: yesPolyolefins Journal, 2016
Hyphenating High Temperature High Performance Liquid Chromatography (HT-HPLC) with High Temperature Size Exclusion Chromatography (HT-SEC) (High Temperature Two Dimensional Liquid Chromatography (HT-HPLC x HT-SEC or HT 2D-LC)) leads to an isocratic ...
Sampat Bhati, Tibor Macko, Robert Brüll
doaj   +1 more source

Experimental and numerical analyses of stiffness and fatigue properties of a spring element for mounts with tunable stiffness made of C85S+QT sheet steel

open access: yesFracture and Structural Integrity
Mounting stiffness has an important impact on a system’s structural dynamics and also on the durability of many structures. Mounts with tunable stiffness allow adapting a system’s structural dynamic behavior.
Volker Landersheim   +3 more
doaj   +1 more source

Phosphasilazanes as Inhibitors for Respirable Fiber Fragments Formed during Burning of Carbon-Fiber-Reinforced Epoxy Resins

open access: yesMolecules, 2023
Carbon-fiber-reinforced polymer composites (CFRPs) exhibit additional hazards during and after burning due to respirable fragments of thermo-oxidatively decomposed carbon fibers.
Philipp Kukla   +4 more
doaj   +1 more source

Vibration Reduction on Circular Disks with Vibroacoustic Metamaterials

open access: yesApplied Sciences
Vibroacoustic metamaterials represent an innovative technology developed for broadband vibration reduction. They consist of an array of local resonators and are able to reduce vibrations over a wide frequency range, commonly referred to as a stop band ...
Sebastian Rieß   +4 more
doaj   +1 more source

Influence of Material Ductility on Fatigue Life under Multiaxial Proportional and Non-Proportional Normal and Shear Stresses [PDF]

open access: yesMATEC Web of Conferences, 2019
Current experiences show that a non-proportional loading of ductile materials such as wrought steels, wrought aluminium or magnesium alloys, not welded or welded, causes a significant fatigue life reduction under an out-of-phase shear strain or shear ...
Sonsino Cetin Morris
doaj   +1 more source

Effect of Laser Surface Texturing on Schmid Factor and Plastic Deformation Mechanisms on AISI 301LN Steel

open access: yesMetals, 2023
In this comprehensive study, the multifaceted impact of laser surface texturing (LST) on AISI 301LN stainless steel is explored. Changes in the microstructure, mechanical properties, and grain characteristics are examined.
Mohammad Rezayat   +2 more
doaj   +1 more source

Adaptive Piezoelectric Absorber for Active Vibration Control

open access: yesActuators, 2016
Passive vibration control solutions are often limited to working reliably at one design point. Especially applied to lightweight structures, which tend to have unwanted vibration, active vibration control approaches can outperform passive solutions.
Sven Herold, Dirk Mayer
doaj   +1 more source

Home - About - Disclaimer - Privacy