Fatigue properties of RPC under cyclic loads of single-stage and multi-level amplitude

2010 ◽  
Vol 25 (1) ◽  
pp. 167-173 ◽  
Author(s):  
Mingzhe An ◽  
Ziruo Yu ◽  
Meili Sun ◽  
Shuaiquan Zheng ◽  
Lei Liang
Keyword(s):  
Single Stage ◽  
Fatigue Properties ◽  
Cyclic Loads ◽  
Multi Level

Effect of Yielding on the Fatigue Properties of Test Pieces Containing Stress Concentrations

1955 ◽  
Vol 6 (4) ◽  
pp. 277-294 ◽  
Author(s):  
K. Gunn
Keyword(s):  
Fatigue Properties ◽  
Cyclic Loads ◽  
Stress Concentrations ◽  
Test Pieces ◽  
Local Yielding ◽  
Mean Stresses

SummaryA method of estimating the fatigue properties of notched test pieces when cyclic loads are applied in the presence of mean stresses is described. The method takes into account the local yielding which occurs near the base of the notch when the nominal stresses are sufficiently high. The general form of the predicted R/M diagrams closely resembles those obtained experimentally in previously published work.

Fatigue Properties of Aluminium Alloys for Uniaxial Cyclic Loads

2014 ◽  
Vol 598 ◽  
pp. 13-19
Author(s):  
Ewelina Böhm ◽  
Tadeusz Łagoda
Keyword(s):  
Fatigue Strength ◽  
Chemical Composition ◽  
Aluminium Alloys ◽  
Cyclic Fatigue ◽  
Fatigue Tests ◽  
Fatigue Properties ◽  
Cyclic Loads ◽  
Fatigue Characteristics

The paper presents an analysis of aluminium and its alloys in terms of fatigue strength. The paper contains information in terms of cyclic fatigue tests of aluminium alloys. On the basis of available literature data, Basquin fatigue characteristics have been designated. On their basis a comparison between chosen fatigue characteristics of aluminium alloys with different chemical composition and element percentage in the substance have been done.

Deformation characteristics and failure modes of sandstones under discontinuous multi-level cyclic loads

2020 ◽  
Vol 373 ◽  
pp. 599-613 ◽  
Author(s):  
Kang Peng ◽  
Jiaqi Zhou ◽  
Quanle Zou ◽  
Yongjiang Zhang ◽  
Guowen Tan
Keyword(s):  
Failure Modes ◽  
Cyclic Loads ◽  
Deformation Characteristics ◽  
Multi Level

scholarly journals A Control Technique on Novel PWM Inverter Based on Single Stage Switched Capacitor Module

2019 ◽  
Vol 8 (11) ◽  
pp. 1053-1061
Keyword(s):  
Closed Loop ◽  
Single Stage ◽  
Control Technique ◽  
Voltage Source ◽  
Switched Capacitor ◽  
Reverse Voltage ◽  
Pwm Inverter ◽  
Voltage Stress ◽  
Multi Level ◽  
Cascaded Multilevel Inverter

There is a disadvantage with a two stage switched capacitor module multi level inverter with the end goal the switches of subsequent level like H connect perseveres which are through higher voltage stress. To determine the issue, in this paper, we proposed a module that guarantees pinnacle reverse voltage among all switches which is limited to dc voltage source for cascaded multilevel inverter. This module is called single stage switched capacitor module (S3 CM). Nine voltage levels are created with just a one dc source, two joined capacitors. Thus, quantity of isolated dc sources was fundamentally decreased contrasted with cascaded H-bridge. What's more, voltage gain increase by two is accomplished. A similar investigation averse the ongoing methodology uncovers the proposed S3 CM module accomplishes decrease in number of switches. And furthermore switching states of inverter will be controlled by utilizing closed loop PI controller.

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