نتایج جستجو برای: node plain strain elements. thermo

تعداد نتایج: 709082  

Failure modes in recent earthquakes on lightly reinforced shear walls includes rebar fracture and out of plane buckling of its boundary elements. In latest edition of ACI 318 and also latest amendment of NZS 3101-2006 to avoid rebar fracture in boundary elements, the minimum reinforcement ratio for shear walls is increased. This experimental study investigates that rather than increasing reinfo...

B. Mosadeg, A. Vajd, M. Shaban Ghazani,

The aim of the present study is the prediction of critical conditions (including critical strain and flow stress) for the initiation of dynamic recrystallization during thermo-mechanical processing of plain carbon steels. For this propose, torsion tests were conducted at different temperature (1050, 1100 and 1150˚C) and strain rates (0.002, 0.02 and 0.2/s). All flow curves showed a peak st...

Journal: :نشریه دانشکده فنی 0
وحید نوروزی فرد دانشگاه تهران عقیل یوسفی کما دانشگاه تهران

the built up layer thickness in secondary deformation zone is one of the important parameters in metal cutting process. the built up layer (bul) is formed in second deformation zone near the tool-chip interface in the back of the chip. this parameter influences the tool life and machined surface quality. this bul should not be confused with the built up edge (bue). the deformation of the bul in...

Aghil Yousefikoma Vahid Norouzifard

The built up layer thickness in secondary deformation zone is one of the important parameters in metal cutting process. The built up layer (BUL) is formed in second deformation zone near the tool-chip interface in the back of the chip. This parameter influences the tool life and machined surface quality. This BUL should not be confused with the built up edge (BUE). The deformation of the BUL in...

K.N.V. Chandrasekhar, S. Abdul Mohi V. Bhikshma

The need of polygonal elements to represent the domain is gaining interest among structural engineers. The objective is to perform static analysis and topology optimization of a given continuum domain using the rational fraction type shape functions of six node hexagonal elements. In this paper, the main focus is to perform the topology optimization of two-dimensional plate structures using Evo...

Journal: :international journal of environmental research 0

this paper dealswith thermo-mineral groundwater of themondragone plain (campania, southernitaly) and the possibility to use this low enthalpy geothermal resource. in the nw sector of this plain, at thebottom of mt. pizzuto, near the sea, there are thermo-mineral waters (50 °c) of sodium-chloride type,sulfureous and rich in co2 whose recharge is from the mt. pizzuto groundwater body. in the se s...

GOLMAHALLEH O., , ZAREI-HANZAKI A., ,

In principal, a proper combination of strength and ductility is achieved through micro component refinement in steels. This is particularly empowered with ferrite refinement down to micron sizes in ferrite pearlite engineering steels. The latter is achieved through various well-defined methods in which strain induced transformation (SIT) has shown spectacular capabilities. In the present study,...

2009
Luděk Pešek Ladislav Půst Petr Šulc

The FEMLAB code based on weak formulation of PDE’s problem was used at a solution of feedback thermo-mechanical interaction in pre-pressed rubber block used for resilient elements of the composed tram wheels. The structural motion and heat conduction equations are solved interactively as time dependent problems. The equality of heat energy density and dissipation energy density realizes the cou...

Journal: :journal of modern processes in manufacturing and production 0
javad jafari fesharaki department of mechanical engineering, najafabad branch, islamic azad university, najafabad, iran seyed ghasem madani department of mechanical engineering, faculty of engineering, university of kashan, kashan, iran sa’id golabi department of mechanical engineering, faculty of engineering, university of kashan, kashan, iran

this research develops thermo-elastic analysis of a functionally graded cylinder under thermo-mechanical loadings. heat conduction equation in cylindrical coordinate system is solved. thermal conductivity coefficient is graded along the radial direction. by considering a symmetric distribution of temperature, loading and boundary conditions, strain-displacement and stress-strain relations can b...

Journal: :Journal of the Franklin Institute 1916

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