Results 21 to 30 of about 213,665 (198)

Effect of the yield surface evolution on the earing defect prediction

Revista de Metalurgia, 2023
Although the prediction of earing in the cup drawing process is considerably related to the yield surface shape, the yield surface evolution is also essential for the final ear form.
Toros A. Akşen, Mehmet Firat
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Validated prediction of weld residual stresses in austenitic steel pipe girth welds before and after thermal ageing, Part 2: modelling and validation [PDF]

, 2019
An extensive finite element simulation campaign was undertaken to examine the complete manufacturing history and high temperature thermal ageing of thick-walled girth-welded austenitic steel pipes fabricated from Esshete 1250 austenitic steel.
Austin, Bate, Bendeich, Bouchard, Bouchard, Bouchard, Bouchard, Dong, Dong, Dong, Dong, Dong, Dong, Dong, Fredette, Hamelin, Hurrell, J. Mathew, Janosch, Lemaitre, Lindgren, Lindgren, Lindström, M.C. Smith, Mahmoudi, Marlette, Muransky, Muransky, Muransky, Muransky, O. Muransky, Prime, Qingrong Xiong, Rathbun, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Smith, Truman, Vaughn, Withers, Withers, Yaghi, Yaghi   +55 more
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A research on the mechanism and model of surface micro-damage in grinding hardening

Advances in Mechanical Engineering, 2021
Grinding hardening can obtain hardening effect besides fine machining effect on the surface of workpiece. A certain degree of surface micro-damage will be formed during grinding hardening process which mainly contains micro-crack, melting coating ...
Xiaoliang Shi, Xiuming Zhang, Shichao Xiu   +2 more
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A hardening model considering grain size effect for ion-irradiated polycrystals under nanoindentation

Nuclear Engineering and Technology, 2021
In this work, a new hardening model is proposed for the depth-dependent hardness of ion-irradiated polycrystals with obvious grain size effect. Dominant hardening mechanisms are addressed in the model, including the contribution of dislocations ...
Kai Liu, Xiangyun Long, Bochuan Li, Xiazi Xiao, Chao Jiang   +4 more
doaj   +1 more source

Influence of cross-section geometry and wire orientation on the phonon shifts in ultra-scaled Si nanowires [PDF]

, 2011
Engineering of the cross-section shape and size of ultra-scaled Si nanowires (SiNWs) provides an attractive way for tuning their structural properties. The acoustic and optical phonon shifts of the free-standing circular, hexagonal, square and triangular
Klimeck, Gerhard, Luisier, Mathieu, Paul, Abhijeet   +2 more
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Evaluation of Sand Constitutive Models for Analysis of Piled Raft Foundation

Diyala Journal of Engineering Sciences, 2018
Constitutive models play an important origin in the geotechnical problems design. In order to make the models useful to geotechnical engineers, some numerical predictions are presented to compare the performance of different models with experimental ...
Hassan O. Abbase
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A constitutive model for the uniaxial tensile plastic behavior of metals based on the instantaneous strain-hardening exponent

Journal of Materials Research and Technology, 2022
The present work develops a new constitutive equation model for strain-hardening behavior of metallic materials (named herein as the Gonoring model) based on the definition of the instantaneous strain-hardening exponent.
Tiago Bristt Gonoring, Mariane Gonçalves de Miranda Salustre, Gabriela Aksascki Caetano, João Batista Ribeiro Martins, Marcos Tadeu D'Azeredo Orlando   +4 more
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Sensitivity analysis of hardening parameters in the crystal plasticity model exhibiting deformation twinning

工程科学学报, 2015
A crystal plasticity model exhibiting deformation twinning is introduced based on the classical crystal plasticity theory,and its numerical implementation is conducted in which a fully implicit integration procedure is employed.
YANG Jing, HUANG Jie, SUN Chao-yang, GUO Ning, WANG Bin   +4 more
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Effect of Elastic Module Degradation Measurement in Different Sizes of the Nonlinear Isotropic–Kinematic Yield Surface on Springback Prediction

Metals, 2019
Commercial finite element software that uses default hardening model simulation is not able to predict the final shape of sheet metal that changes its dimensions after removing the punch due to residual stress (strain recovery or springback). We aimed to
Wisam Ali Basher Baara, B. T. Hang Tuah b. Baharudin, Mohd Khairol Anuar, Mohd Idris Shah b. Ismail   +3 more
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A four parameter hardening model for TWIP and TRIP steels

Materials & Design, 2020
The mechanical behavior of twinning- and transformation-induced plasticity steels, commonly referred to as TWIP and TRIP steels, are characterized by linear hardening followed by an abrupt decrease in the hardening rate.
J.T. Lloyd, D.M. Field, K.R. Limmer
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