A new shuttle-shaped buckling-restrained brace. Theoretical study on buckling behavior and load resistance

2017 ◽  
Vol 147 ◽  
pp. 223-241 ◽  
Author(s):  
Yan-Lin Guo ◽  
Jing-Shen Zhu ◽  
Peng Zhou ◽  
Bo-Li Zhu
Keyword(s):  
Theoretical Study ◽  
Load Resistance ◽  
Buckling Restrained Brace ◽  
Buckling Behavior

MICRO-PLATE PIEZOELECTRIC ENERGY HARVESTER FOR PULSATING ARTERIAL PRESSURE

2016 ◽  
Vol 16 (05) ◽  
pp. 1650073 ◽  
Author(s):  
P. R. NWAGOUM TUWA ◽  
P. WOAFO
Keyword(s):  
Arterial Pressure ◽  
Electric Power ◽  
Axial Load ◽  
Energy Harvester ◽  
Theoretical Study ◽  
Dynamical Behavior ◽  
Electrical Energy ◽  
Load Resistance ◽  
Electric Power Output ◽  
Piezoelectric Energy

This work considers a theoretical study for the conversion of the pulsating arterial pressure into electrical energy using piezoelectric layer on a micro-plate with axial load. The mathematical modeling of the device is carried out. Analytical and numerical methods are used to analyze the dynamical behavior of the plate and the variation of the electric power output. Pulsatile voltage is obtained with electric power of the order of 3.07[Formula: see text]nW for a plate of [Formula: see text][Formula: see text]cm3. The power increases with the pressure frequency and attains its maximal value for a load resistance of about 5[Formula: see text]k[Formula: see text].

scholarly journals Local Buckling Behavior of Buckling-Restrained Braces with Longitudinally Profiled Steel Core

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 914
Author(s):  
Junkai Lu ◽  
Weichuang Liu ◽  
Yong Ding ◽  
Yingying Li ◽  
Shuquan Xu
Keyword(s):  
Friction Coefficient ◽  
Local Buckling ◽  
Hysteretic Behavior ◽  
Parameter Study ◽  
Element Analysis ◽  
Buckling Restrained Brace ◽  
Steel Core ◽  
Mortar Strength ◽  
Buckling Behavior ◽  
The Finite Element Analysis

One of the most important requirements for a well-designed buckling restrained brace (BRB) under severe earthquake loading is to ensure its stability until the brace achieves sufficient elasto-plastic deformation. This study presents the finite element analysis results of the proposed buckling restrained brace with a longitudinally profiled steel core (LPBRB). The objective of the analyses is to conduct a performance evaluation of the proposed LPBRBs, and to perform a parameter study with different clearance, width:thickness ratio, mortar strength, and friction coefficient for investigating the local buckling behavior of the LPBRBs. Numerical analyses results demonstrate that the LPBRBs exhibited good ductile performance and stable hysteretic behavior. The local buckling failure can be predicted by the demand:capacity ratio formula. The friction coefficient has little influence on the hysteretic behavior of LPBRBs. The local stability can be improved by adopting the mortar with higher compression strength or the LP core with lower width:thickness ratio. The proposed LPBRBs have a similar hysteretic response to the conventional BRBs.

Adsorption of H2O and H2S on the (100) surface of silicon. A theoretical study

1987 ◽  
Vol 84 ◽  
pp. 799-803 ◽  
Author(s):  
Vincenzo Barone ◽  
Francesco Lelj ◽  
Nino Russo ◽  
Marirosa Toscano
Keyword(s):  
Theoretical Study
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