The purposes of this article are to present new aspects of modeling multi-physically coupled fields, focusing particularly on the partitioned treatment of electro-thermo-mechanical problems. Coupled problems of this kind occur in many industrial applications, such as micro-electrical devices, field-assisted sintering processes or electrical fuses. In this paper, we restrict ourselves to the cas...

A comprehensive experimental study performed under a combination of thermo-electro-mechanical loads applied to widely used electro-active polymer, is presented in the Part I this work (Mehnert et al., 2021). Soft polymeric materials, as base materials polymers, are highly susceptible temperature changes. Hence, thermal influences on their behavior have be investigated precisely. Constitutive mo...

Damage evolution during low cycle fatigue, creep, and their interaction behavior is actually a ductility exhaustion process in response to cyclic and static creep. In this article, a novel viscosity-based model for low cycle fatigue creep life prediction is presented in an attempt to condition viscosity-based approaches for general use in isothermal and thermo-mechanical loading. In this model,...

The suspended electrothermal polysilicon micro beams generate displacements and forces by thermal buckling effects. In the previous electro-thermal and thermo-elastic models of suspended polysilicon micro beams, the thermo-mechanical properties of polysilicon have been considered constant over a wide rang of temperature (20900°C). In reality, the thermo-mechanical properties of polysilicon depe...

In this research, static stresses analysis of boron nitride nano - tube reinforced composite (BNNTRC) cylinder made of poly - vinylidene fluoride (PVDF) subjected to non - axisymmetric thermo - mechanical loads and applied voltage is developed. The surrounded elastic medium is modelled by Pasternak foundation. Composite structure is modeled based on piezoelectric fiber reinforced composite (PFR...

In this research, analysis of nonlocal magneto-electro-thermo-elastic of a functionally graded nanobeamdue to magneto-electro-elastic loads has been done. In order to formulate the problem the Timoshenko theory of beams is utilized. The principle of virtual work, Hamilton’s principle as well as nonlocal magneto-electro-thermo-elastic relations has been recruited to derive the governing eq...

0026-2714/$ see front matter 2012 Elsevier Ltd. A http://dx.doi.org/10.1016/j.microrel.2012.06.025 ⇑ Corresponding author. Tel.: +41 567 1525; fax: +4 E-mail address: [email protected] (P. Pfäffli). Using TCAD tools, many reliability issues can be studied quantitatively. Examples are hot carrier degradation of interfaces, threshold voltage shifts during NBTI stress, radiation effects and so...

We introduce the coupling of three-dimensional transient electro-thermal interconnect simulations with intrinsic thermo-mechanical stress solutions. In order to study the development of local thermal stresses we use a finite element simulator for the investigation of complex layered interconnect structures at different operating conditions. The obtained local stress, temperature distribution, t...

in this paper, an ultra low carbon high strength low alloy grade steel was subjected to a two-step forging processand this was followed by different post cooling methods. the highest strength was obtained at a faster coolingrate due to the highly dislocated acicular ferrite structure with the fine precipitation of microalloying carbides andcarbonitrides. at a slow cooling rate, the strength fel...