FEM simulation of the thermo-mechanical behaviour and failure of refractories—a case study

2003 ◽  
Vol 143-144 ◽  
pp. 72-77 ◽  
Author(s):  
K. Andreev ◽  
H. Harmuth
Keyword(s):  
Mechanical Behaviour ◽  
Fem Simulation

Estimation of Strain-Hardness Correlation in Cold-Forged Austenitic Stainless Steel

2014 ◽  
Vol 622-623 ◽  
pp. 179-185 ◽  
Author(s):  
Piotr Skubisz ◽  
Maciej Rumiński ◽  
Łukasz Lisiecki
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Strain Hardening ◽  
Effective Strain ◽  
Cold Deformation ◽  
Metal Flow ◽  
Fem Simulation ◽  
Large Head ◽  
The Relationship

The paper presents selected aspects of analysis cold micro-forging process of a screw made of austenitic stainless steel, concerning relation between strain and hardness. Strain hardening character of a material in consecutive forming operations was analyzed experimentally by the measurement of hardness distribution made on longitudinal axial sections of screws. The relationship between hardness and effective strain (hardness curve) was determined, which made it possible to obtain strain distributions in different regions of a material subjected to cold deformation on the basis of strain distribution numerically estimated with FEM simulation performed using QForm2D/3D commercial software. Conclusions were formulated concerning strain inhomogeneity and strain-hardening intensity with respect to the correlation between strain and hardness. It was also concluded, that nonuniformity of hardening rate in a bulk can lead to local variations in flow stress and eventually, to occurrence of the metal flow related defects, which was illustrated with a case study of cold heading of self-tapping screw of AISI 304Cu stainless steel, with large head diameter to shank diameter ratio. In order to validate the obtained results, the same method was used for analysis of hardness development in steel 19MnB4.

Effects of Landfill Leachate on Mechanical Behaviour of Adjacent Soil: a Case Study of Saravan Landfill, Rasht, Iran

2018 ◽  
Vol 16 (10) ◽  
pp. 1503-1513 ◽  
Author(s):  
Nader Shariatmadari ◽  
Behnam Askari Lasaki ◽  
Hasan Eshghinezhad ◽  
Pourya Alidoust
Keyword(s):  
Mechanical Behaviour ◽  
Landfill Leachate ◽  
Adjacent Soil

scholarly journals A Feasibility Study of an FEM Simulation Used in Co-Seismic Deformations: A Case Study of a Dip-Slip Fault

2013 ◽  
Vol 24 (4-1) ◽  
pp. 637 ◽  
Author(s):  
Xiaoguang Lin ◽  
Wenke Sun ◽  
Huai Zhang ◽  
Xin Zhou ◽  
Yaolin Shi
Keyword(s):  
Feasibility Study ◽  
Fem Simulation ◽  
Seismic Deformations

scholarly journals Design of Bilateral Switched Reluctance Linear Generator to Convert Wave Energy: Case Study in Sicily

2013 ◽  
Vol 860-863 ◽  
pp. 1694-1698 ◽  
Author(s):  
Vincenzo Di Dio ◽  
Vincenzo Franzitta ◽  
Daniele Milone ◽  
Salvatore Pitruzzella ◽  
Marco Trapanese ◽  
...  
Keyword(s):  
Wave Energy ◽  
Fem Simulation ◽  
Electrical Energy ◽  
Oscillatory Motion ◽  
Constant Speed ◽  
Variable Speed ◽  
Switched Reluctance ◽  
Linear Generator ◽  
The Law

The aim of this work is a case study of the adaptation bilateral switched reluctance linear generator to the exploitation of energy of the sea. This type of generator can be used to convert wave energy in electrical energy. In this paper we present an analytical sizing and FEM simulation. As for the results, analysis of the data extracted through the simulations it was possible to calculate the emf. The emf was calculated in two cases of motion of the slider: first hypothesis has set the constant speed while the second is a variable speed according to the law of an oscillatory motion of the sea.

A Case Study to Solve the Problem of Wall Thickness Attenuation during Extrusion to Produce a Complex Hollow Magnesium Profile

2009 ◽  
Vol 424 ◽  
pp. 227-234
Author(s):  
Luo Xing Li ◽  
Jia Zhou ◽  
X. He ◽  
Jie Zhou ◽  
Jurek Duczczyk
Keyword(s):  
Hydrostatic Pressure ◽  
Wall Thickness ◽  
Software Package ◽  
Practical Problem ◽  
Fem Simulation ◽  
Experimental Measurements ◽  
Thin Walled ◽  
Present Case Study

The present case study addressed a practical problem of wall thickness attenuation during extrusion to produce a complex thin-walled hollow magnesium profile. A HyperWorks FEM software package was employed to aid in identifying the causes for the wall thickness attenuation. Recommendations were made to adjust the interspacing between the mandrels and the height of the welding chamber. The modified dies yielded much improved results in terms of velocity and hydrostatic pressure uniformity. The wall thickness of the extrudate predicted using FEM simulation was very close to experimental measurements. The case study demonstrated the feasibility of using FEM simulation as a useful tool to solve industrial problems encountered in the production of complex profiles.

A Case Study of Conceptual Design Analysis of Stove Brackets Using Finite Element Method

2008 ◽  
Author(s):  
Diego Va´zquez ◽  
Hugo Medelli´n ◽  
Antonio Ca´rdenas ◽  
Alonso de la Garza
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Experimental Analysis ◽  
Mechanical Performance ◽  
Fem Simulation ◽  
Production Costs ◽  
The Finite Element Method ◽  
Design Change ◽  
Element Method

Advanced engineering techniques for analysis are modern tools used for companies to enhance the design and manufacturing cycles of new or existing products. Finite element method has become one of the most used tools in the design process of products. This paper presents a case study regarding a design change of the brackets that support the gas jet in stoves. Using the finite element method, the mechanical performance of the existing brackets is compared with the performance of the new proposed bracket. This comparison is used to evaluate the feasibility of carrying out the design change. The benefit of the new design is a reduction of materials, production costs and production times. Experimental analysis of the materials and the validation of the finite element solutions were also performed. The results of the experimental analysis and FEM simulation are discussed and presented. Finally, the performance of the existing and the new brackets under several load cases is compared and the results suggest that the product design change is feasible.

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