The study of mechanical behavior of the structural steel S400 under quasi- static and dynamic loading has been the subject of this investigation. In oder to obtain different stress - triaxiality conditions the specimens were notched with 1, 1.5, 2 and 3.5 mm notch radius. The results of fractography show as the velocity of tension increases, ductility reduces and a ductile-brittle transition oc...

In situ multiaxial loading during neutron diffraction tests were undertaken on a low-alloyed Quenched and Partitioning (Q&P) Transformation Induced Plasticity (TRIP) Bainitic Ferrite (TBF) steel with dispersed austenite particles. The effect of stress triaxiality the evolution deformation-induced martensite is investigated under uniaxial- equibiaxial-tension as well tension/compression ratio −1...

The steep mass profile of A1689 derived from recent detailed lensing observations is not readily reconciled with the low concentration halos predicted by the standard cold dark matter (CDM) model. However, halo triaxiality may act to bias the profile constraints derived assuming a spherically symmetric mass distribution, since lensing relates only to the projected mass distribution. A degree of...

Based on exploratory simulations, Rojas-Niño et al. (2012) have proposed that triaxiality in the Galactic dark matter halo might cause lumpiness in the velocity distribution of halo stars in the Solar Neighbourhood through orbital resonances. Accordingly, they have asserted that detecting the presence of substructures in velocity space may be a method for diagnosing the shape of the dark matter...

Tensile test on smooth and circumferentially notched specimens, systematic observation of fracture surfaces and large deformation finite element analysis were conducted to understand the deformation and failure behavior of a magnesium alloy (AM60). The plastic deformation is considered to be dominated by twining mediated slip. The tensile properties were not sensitive to the strain rates applie...

Statler (1987) demonstrated that self-consistent triaxial models with the perfect density law could be constructed for virtually any choice of axis ratios. His experiments are repeated here using triaxial mass models based on Jaffe's density law, which has a central density that diverges as r −2 , similar to what is observed in low-luminosity elliptical galaxies. Most of the boxlike orbits are ...

Welding is the main method for oil/gas steel pipeline connection, and a large number of girth welds are weak part pipeline. Under extremely complex loads, undergoes significant plastic deformations eventually leads to fracture. A damage mechanics model promising approach, capable describing material fracture problems according stress states materials. In this study, an uncoupled 2D with functio...