Finite element model for a coupled thermo-mechanical system in nonlinear strain-limiting thermoelastic body

نویسندگان

چکیده

We investigate a specific finite element model to study the thermoelastic behavior of an elastic body within context nonlinear strain-limiting constitutive relation. As special subclass implicit relations, response our interest is such that stresses can be arbitrarily large, but strains remain small, especially in neighborhood crack-tips. Thus, proposed inherently consistent with assumption small strain theory. In present communication, we consider two-dimensional coupled system-linear and quasilinear partial differential equations for temperature displacements, respectively. Two distinct distributions Dirichlet type are considered boundary condition, standard method continuous Galerkin employed obtain numerical solutions field variables. For domain edge-crack, find near-tip growth much slower than stress, which salient feature compared inconsistent results classical linearized description body. Current provide theoretical computational framework develop physically meaningful models examine other multi-physics as evolution complex network cracks induced by thermal shocks.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Finite element analysis of thermo-mechanical stresses in diesel engines cylinder heads using a two-layer viscoelasticity model

Loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. One of the most important durability problems in diesel engines is due to the cracks valves bridge area. The purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. In this article, mechanical prope...

متن کامل

The Particle Finite Element Method (PFEM) in thermo-mechanical problems

The aim of this work is to develop a numerical framework for accurately and robustly simulating the different conditions exhibited by thermo-mechanical problems. In particular the work will focus on the analysis of problems involving large strains, rotations, multiple contacts, large boundary surface changes and thermal effects. The framework of the numerical scheme is based on the Particle Fin...

متن کامل

A New Stress Based Approach for Nonlinear Finite Element Analysis

This article demonstrates a new approach for nonlinear finite element analysis. The methodology is very suitable and gives very accurate results in linear as well as in nonlinear range of the material behavior. Proposed methodology can be regarded as stress based finite element analysis as it is required to define the stress distribution within the structural body with structural idealization a...

متن کامل

Finite element discretization of a thermoelastic beam

We consider the steady case of a nonlinear model for a thermoelastic beam that can enter in contact with obstacles. We first prove the well-posedness of this problem. Next, we propose a finite element discretization and perform the a priori and a posteriori analysis of the discrete problem. Some numerical experiments confirm the interest of this approach. Résumé: Nous considérons le cas station...

متن کامل

Thermo-Mechanical Finite Element Modeling of the Friction Drilling Process

Friction drilling uses a rotating conical tool to penetrate the workpiece and create a bushing in a single step without generating chips. This research investigates the threedimensional (3D) finite element modeling (FEM) of large plastic strain and hightemperature work-material deformation in friction drilling. The explicit FEM code with temperature-dependent mechanical and thermal properties, ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Communications in Nonlinear Science and Numerical Simulation

سال: 2022

ISSN: ['1878-7274', '1007-5704']

DOI: https://doi.org/10.1016/j.cnsns.2022.106262