Finite element (FE) simulation with inherent deformation is an ideal and practical computational approach for predicting welding stress and distortion in the production of complex aluminum alloy structures. In this study, based on the thermal elasto-plastic analysis, FE models of multi-pass butt welds and T-type fillet welds were investigated to obtain the inherent strain distribution in a 5A06...

We have used a plasma-mediated cross-linking process to generate the patterns on polydimethylsiloxane (PDMS) thin film surfaces. Exposure to an argon plasma leads to the formation of a siloxane network in the near-surface region. The silica-like surface layer is put into compressive stress when the sample cools after removing it from the plasma chamber due to differential thermal contraction, l...

The shape transformation of some biological systems inspires scientists to create sophisticated structures at the nano- and macro- scales. However, to be useful in engineering, the mechanics of governing such a spontaneous, parallel and large deformation must be well understood. In this study, a kirigami approach is used to fold a bilayer planar sheet featuring a specific pattern into a bucklib...

Abstract This paper has carried out the research on thermal buckling behavior of metal/composite composite structure wall panel. The hybrid been studied from analytical methods, finite element methods and experimental tests. Aiming at room temperature 20°C to -55°C, non-contact optical testing technology is used obtain deformation parameters entire history, critical heat obtained through theore...

The primary focus of this investigation was to analyze sequentially coupled nonlinear thermal stress, using a three-dimensional model. It was meant to shed light on the behavior of Buckling Restraint Brace (BRB) elements with circular cross section, at elevated temperature. Such bracing systems were comprised of a cylindrical steel core encased in a strong concrete-filled steel hollow casing. A...