Results 31 to 40 of about 51,985 (289)

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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Influence of the soft reduction process on the sensitivity of the inner crack in heavy rail steel bloom

工程科学学报, 2021
Continuous casting technology has greatly improved production efficiency; however, in the continuous casting process of heavy rail steel, problems of center segregation, center porosity, and shrinkage cavity of the bloom occur, which notably affect the ...
Hai-tao MA, Jiong-ming ZHANG, Yan-bin YIN   +2 more
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A Study on Welding Deformation Prediction for Ship Blocks Using the Equivalent Strain Method Based on Inherent Strain

Applied Sciences, 2019
The welding process, which accounts for about 60% of the shipbuilding process, inevitably involves weld deformation. Considering this, productivity can be significantly increased if weld deformation can be predicted during the design phase, taking into ...
Yongtai Kim, Jaewoong Kim, Sungwook Kang
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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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Stress distribution evaluation at localized necking area using the virtual fields method with digital image correlation

Mechanical Engineering Journal
In this paper, based on the virtual fields method (VFM) and displacement measurement using digital image correlation, we propose a method for evaluating the equivalent stress and the equivalent plastic strain relationship and the stress distribution even
Kotaro FUJITA, Keisuke IIZUKA, Satoru YONEYAMA, Kuniharu USHIJIMA, Shota CHINZEI   +4 more
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Implementation of plastic thickness strain in an equivalent drawbead model based on a penalty constrained model

, 1998
Drawbeads are applied in the deep drawing process to improve the control of the material flow during the forming operation. These drawbeads can be replaced by an equivalent drawbead in simulations of the deep drawing process. In this paper the implementation of an equivalent drawbead model in a finite element code is described. This equivalent drawbead
Meinders, Vincent T., Geijselaers, Hubertus J.M., Huetink, Han   +2 more
openaire   +2 more sources

Effect of dynamic strain rate on micro-indentation properties of pure aluminum

EPJ Web of Conferences, 2015
Indentation is widely used to investigate the elastic and plastic properties of mechanical materials, which includes the strain rate sensitivity. The indentation exhibits an inhomogeneous strain distribution in contrast to compression and tensile tests ...
Yamada Hiroyuki, Hotta Midori, Kami Tsuyoshi, Ogasawara Nagahisa, Chen Xi   +4 more
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Flattening aluminum plates with tuning asymmetric rolling parameters

Journal of Materials Research and Technology, 2023
The asymmetric rolling (ASR) process can introduce shear strains inside the plate, resulting in the improvements of microstructures and mechanical properties.
Hui Su, Longgang Hou, Qingkun Tian, Yawen Wang, Linzhong Zhuang   +4 more
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Calibration of the Ductile Failure Criterion for Nickel-Based Superalloys taking into Account the Localization of the Strain

Fatigue of Aircraft Structures, 2017
Static tension test allows characterization of material strength properties. This simple test provides input data for numerical calculation of structural components made of the tested alloy.
Madejski Bartosz, Socha Grzegorz
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Analysis of Strain-Hardening Viscoplastic Wide Sheets Subject to Bending under Tension

Metals, 2022
The present paper provides an accurate solution for finite plane strain bending under tension of a rigid/plastic sheet using a general material model of a strain-hardening viscoplastic material.
Sergei Alexandrov, Elena Lyamina
doaj   +1 more source