Results 41 to 50 of about 312,151 (163)

The Study of Geomechanical Condition of Unstable Rocks in the Vicinity of Mine Working Junctions

Горные науки и технологии, 2019
The relevance of research of material strain nature based on physical models equivalent to rocks is substantiated. To identify the dependencies and mechanism of unstable rock strain in the vicinity of mine working junctions, an experimental technique has
V. V. Basov
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A method for determining material's equivalent stress-strain curve with any axisymmetric notched tensile specimens without Bridgman correction [PDF]

International Journal of Mechanical Sciences, 2018
Abstract Large deformation analyses of problems such as plastic forming, ductile fracture with finite element method need a full range of material's equivalent stress-strain curve or flow stress-strain curve. The equivalent stress-strain curve determined from the smooth round bar specimen should be corrected after diffuse necking, since tri-axial ...
Shengwen Tu, Xiaobo Ren, Jianying He, Zhiliang Zhang   +3 more
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Finite Element Analysis of Strain Non-Uniformity in Two Processes of Severe Plastic Deformation

Engineering Transactions, 2014
Two severe plastic deformation (SPD) processing techniques, namely equal-channel angular pressing (ECAP) and cyclic extrusion-compression (CEC), are investigated by using the finite element method.
J. MACIEJEWSKI, H. KOPEĆ, H. PETRYK
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Finite Element Analysis of Sheet Metal U-Bending Using Free Form Surface [PDF]

Engineering and Technology Journal, 2012
This paper deals with the optimization of tools geometry in sheet metal forming U-bending in order to reduce the equivalent strain, equivalent stress, and thickness change after forming.
Shakir Madhloom Gatea, Abbass Maitham Jabber   +1 more
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Microhardness distribution and finite element method analysis of Al 5452 alloy processed by unconstrained high pressure torsion

Journal of Materials Research and Technology, 2018
High pressure torsion (HPT) is one of the successful and efficient methods of severe plastic deformation (SPD). In this research, disk-shaped specimens of aluminum alloy were exposed to high pressure and torsion, which are the key factors of HPT ...
Sina Ghaemi Khiavi, Esmaeil Emadoddin
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Finite Element  Simulation of  Stress  and Strain of Concasting Slab during Straightening

Teshugang, 2006
The finite element simulation of stress and strain of 230 mm slab with casting rate 1.0 m/min and 3 different roller ways layout-single-point,four-point and continuous straightening have been carried out by elastoplastic finite element method.
邢广厂, 朱苗勇, 林启勇, 刘旭东   +3 more
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Study on Flat Die Wear Characteristics in Flat Die Pelletizing with Different Material Ratios Based on DEM-FEM

Agriculture
Wear can occur in flat die pelletizers, often reducing service life. This study explores the issue of die hole wear in the pelletizing process of a standard Total Mixed Ration (TMR) feed. The selected TMR formulation comprises varying proportions of corn,
Aimin Gao, Qianyu Dong, Wei Sun
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A New Method of Fatigue Life Prediction for Notched Specimen

Journal of Aeronautical Materials, 2017
The simulations of the notched specimens under multiaxial loading were conducted by finite element method. The simulation results show that the stress gradient increases with the decrease in notch radius for the same strain path.
JIN Dan, GOU Zhifei
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An Analysis on Coupled Thermal- Mechanical Simulation of Metal Deformation in Continuous Rolling of Compact Strip Production

Teshugang, 2005
The first pass hot rolling process of compact strip production of 1 500 mm x 68 mm thin slab at Baotou Iron and Steel has been simulated by Marc commercial software with the aid of elastic-plastic thermal-mechanical coupled finite element method (FEM ...
李传瑞, 王宝峰, 麻永林
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A 3D finite element model for reinforced concrete structures analysis

Revista IBRACON de Estruturas e Materiais
This work presents a numerical model for 3D analyses through the finite element method of reinforced concrete structures subjected to monotonic loads. The proposed model for concrete is orthotropic and uses the equivalent uniaxial strain concept.
G. F. F. Bono, A. Campos Filho, A. R. Pacheco   +2 more
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