Abstract: Neutron irradiation plays an important role in nuclear-induced degradation for concrete shielding materials, specifically determining the radiation induced volume expansion (RIVE) phenomenon driving its failure. When analyzing at structural level effects of nuclear on concrete, a non-uniformed distribution neutron must be considered. This can done via particle transport calculations p...

In this Part I, of a two-part paper, we present a detailed continuum-mechanical development of a thermomechanically coupled elasto-viscoplasticity theory to model the strain rate and temperature dependent largedeformation response of amorphous polymeric materials. Such a theory, when further specialized (Part II) should be useful for modeling and simulation of the thermo-mechanical response of ...

We present a combination of transient electro-thermal simulations of three-dimensional interconnect structures and the calculation of their coupled intrinsic thermo-mechanical stress distributions. For the numerical solution of the electro-thermal as well as the thermo-mechanical stress problem, we apply the finite element method. A practical example is presented where the temperature and the p...

Abstract Additive manufacturing (AM) techniques represent a real challenge to manufacture novel composites with coupled multifunctional properties. This work focuses on the mechanical, electrical and thermal behaviours of 3D printed polymeric polylactic acid (PLA) filled carbon black (CB) conductive particles . The incorporation within polymer matrix allows for programmable conduction paths via...

In this paper, the reliability of a micro-electro-mechanical system (MEMS)-based gas sensor has been investigated using Three Dimensional (3D) coupled multiphysics Finite Element (FE) analysis. The coupled field analysis involved a two-way sequential electrothermal fields coupling and a one-way sequential thermal-structural fields coupling. An automated substructuring code was developed to redu...

Accurately predicting the physical cutting process variables, e.g. temperature, velocity, strain and stress fields, plays a pivotal role for predictive process engineering for machining processes. These predicted field variables, however, are highly influenced by workpiece constitutive material model (i.e. flow stress), thermo-mechanical properties and contact friction law at the tool–chip–work...

In the present study, a coupled 3D transient thermo-chemical analysis together with 2D plane strain mechanical is carried out for pultrusion process. For analysis, cure hardening instantaneous linear elastic (CHILE) approach used of thin beam profile made glass fibre and epoxy resin. The applied efficient fast to investigate residual stresses deformations distributions temperature degree obtain...