... numerically (finite element discretization) using higher-order polynomials with the help of the matlab platform. The EPSS responses are evaluated via the modified Ludwik equation and Cowper Symonds model under high strain rate loadings. The model accuracy has been tested by comparing the present numerical...

...Mehmet Furkan Baltacioglu; Baris Cetin; Burak Bal The effects of changing the strain rate regime from quasi-static to medium on hydrogen susceptibility of aluminum (Al) 7075 were investigated using tensile tests. Strain rates were selected as 1 s −1 and 10 −3 s −1 and tensile tests were conducted...

... is utilized in which a rigid hemispherical striker is propelled at a high velocity and deforms the FSSW sheets at high strain rates. In this analysis, the effect of different tool rotational speed and plunge depth on the FS spot welding outputs and forming outputs are understood. Furthermore, DEFORM-3D finite...

...Qian Wu; Yong Wang; Tao Han; Hongtao Wang; Laihui Han; Liangliang Bao The tensile tests of body-centered cubic (BCC) Fe nanowires were simulated through molecular dynamics methods. The temperature and strain rate effects on the mechanical properties as well as the orientation-dependent plastic...

... strain rate dynamic behavior In this present study, 6061 aluminum alloy is selected. Bars of the as-received materials are machined to obtain cylindrical samples with 10 mm in diameter and 40 mm in length for equal channel angular pressing (ECAP). To obtain a homogeneous, strain-free starting...

..., two models are used to predict strain rate dependency in hardness. The first model is a power law expression that is based on the dependence of the yield stress on the strain rate. This model is relatively simple in implementation, and it is quite easy to determine its parameters from simple uniaxial...

...Sia Nemat-Nasser; Jeom Yong Choi; Wei-Guo Guo; Jon B. Isaacs; Minoru Taya The compressive response of a NiTi shape-memory alloy is investigated at various strain rates using UCSD’s modified 1 2 - in. Hopkinson pressure bar and a conventional Instron machine. To obtain a constant strain rate during...