The stress–strain response of a Fe–17.5Mn–0.7C–2Al TWIP steel during cyclic loading has been investigated by means of tension–compression tests within the strain limits of 72%, 75% and 710%. In addition, the microstructural evolution during the 75% cyclic test has also been studied. The difference between the forward and reverse stress for each pre-strain has been analyzed at 0.2% offset strain...

introduction: endothelial cells are subjected to mechanical forces caused by pulsatile flow and pressure leading to hemodynamic shear stress and circumferential stress on endothelial layer. the study aimed at a quantitative evaluation of endothelial cell morphology by application of cyclic loading. endothelial cells respond to applied loads with adaptation and remodeling. such mechanisms are ma...

the purpose of this study was to determine the influence of platform switching on stress distribution of two different implant systems using three-dimensional (3d) finite element models.six 3d finite element models were created to replicate two different implant systems with peri-implant bone tissue, in which six different implant-abutment configurations were represented: model xive-a: 3.8-mm-d...

This study aims to investigate the delamination effect of a metal sandwich panel using four-point bending simulation under continual spectrum loading. The most recent core designs have cavity that can increase vulnerability in terms bonding strength constant cyclic is simulated loading different design configurations, which are rounded dimple, hemispherical and smooth surface design. There two ...

the pseudo-elastic behavior of shape memory alloy (sma) truss and cantilever beam are investigated. brinson’s one-dimensional material model, which uses the twinned and detwinned martensite fractions separately as internal variables, is applied in the algorithm to establish the sma stress-strain characteristics. this material model also incorporates different young’s modulus for austenitic and ...

background and aim: post-traumatic stress disorder is one of the anxiety disorders which occur in postpartum period. the prevalence of ptsd – induced by preeclampsia has been already reported as 28%, however no study was found to compare ptsd in primiparous and multiparous women. this study was therefore conducted to compare ptsd in primiparous and multiparous women. methods: this comparative d...

During pre-replication complex (pre-RC) formation, origin recognition complex (ORC), Cdc6, and Cdt1 cooperatively load the 6-subunit mini chromosome maintenance (MCM2-7) complex onto DNA. Loading of MCM2-7 is a prerequisite for DNA licensing that restricts DNA replication to once per cell cycle. During S phase MCM2-7 functions as part of the replicative helicase but within the pre-RC MCM2-7 is ...