Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Amir Siddiq"'
Publikováno v:
Nanomaterials, Vol 12, Iss 7, p 1239 (2022)
We have investigated the influences of high-frequency vibration (HFV) superimposed onto the monotonic uniaxial tension in single-crystal aluminum (Al) specimens by molecular dynamics simulations. It was found that HFV induces softening, i.e., reducti
Externí odkaz:
https://doaj.org/article/043e69a98fe94934b89fcd51c1050236
Publikováno v:
In Materials Science & Engineering A 6 November 2023 887
Autor:
M. Amir Siddiq
Publikováno v:
Theoretical and Applied Mechanics Letters, Vol 10, Iss 4, Pp 249-252 (2020)
ABSTRACT: A data driven computational model that accounts for more than two material states has been presented in this work. Presented model can account for multiple state variables, such as stresses, strains, strain rates and failure stress, as comp
Externí odkaz:
https://doaj.org/article/be2176d37a154c9ba1b3bc5f53187136
Autor:
Saeed Tamimi, Giribaskar Sivaswamy, Hadi Pirgazi, Babak Shalchi Amirkhiz, Shanmukha Moturu, M. Amir Siddiq, Winfried Kockelmann, Paul Blackwell
Publikováno v:
Materials & Design, Vol 206, Iss , Pp 109750- (2021)
In this work, the mechanical behaviour and microstructure changes of AA-7075 alloy subjected to a repetitive-bending-under-tension (R-BUT) process were studied. In the R-BUT process, a metallic strip undergoes repeated localised bending and unbending
Externí odkaz:
https://doaj.org/article/d16378f2acef413fac7a9522a318e652
Autor:
Saeed Tamimi, Giribaskar Sivaswamy, M. Amir Siddiq, Salaheddin Rahimi, Alan Leacock, Paul Blackwell
Publikováno v:
Materials & Design, Vol 193, Iss , Pp 108814- (2020)
The aim of this work was to study the cold formability of commercially pure Titanium alloy (Grade 2) by a testing methodology known as repetitive bending under tension (R-BUT). A dedicated test rig to perform the test was designed and fabricated to a
Externí odkaz:
https://doaj.org/article/695f85bced214dfca98afbdc94f7e971
Publikováno v:
Procedia Structural Integrity. 35:168-172
Publikováno v:
Physical Mesomechanics. 24:588-597
A study has been performed using a crystal plasticity based finite element method to understand the effect of various stress states and crystal orientations with respect to loading direction for FCC single crystals in both hydrogenated and nonhydroge
Publikováno v:
International Journal of Pressure Vessels and Piping. 203:104937
Publikováno v:
International Journal of Hydrogen Energy. 45:32632-32647
A crystal plasticity-based finite element study is performed to understand hydrogen effects on void growth in single crystals of austenitic stainless steel. The model assumes plastic deformation is driven primarily by dislocation motion and captures
Autor:
M. Amir Siddiq
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 235:3329-3339
A data-driven finite element method that accounts for more than two material state variables has been presented in this work. Data-driven finite element method framework can account for multiple state variables, viz. stresses, strains, strain rates,