Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Harry Millwater"'
Sensitivity Analysis for Transient Thermal Problems Using the Complex-Variable Finite Element Method
Autor:
Juan-Sebastian Rincon-Tabares, Juan C. Velasquez-Gonzalez, Daniel Ramirez-Tamayo, Arturo Montoya, Harry Millwater, David Restrepo
Publikováno v:
Applied Sciences, Vol 12, Iss 5, p 2738 (2022)
Solving transient heat transfer equations is required to understand the evolution of temperature and heat flux. This physics is highly dependent on the materials and environmental conditions. If these factors change with time and temperature, the pro
Externí odkaz:
https://doaj.org/article/733a614a584e4327a65aa8d6ceb9d922
Publikováno v:
Journal of Thermal Stresses. 45:341-374
Publikováno v:
Applied Mathematics and Computation. 451:127981
Publikováno v:
Journal of Applied Mechanics. :1-43
Phononic metamaterials (PMs) exhibit frequency ranges at which elastic waves are attenuated. However, this phenomenon is highly sensitive to geometrical variations and the metamaterial's mechanical properties. It is useful to have accurate sensitivit
Publikováno v:
International Journal of Fracture. 226:219-232
The hypercomplex-variable finite element method, ZFEM, is extended to compute the mode I and mode II energy release rates (ERR) for functionally graded materials. The ERR is computed using an efficient local stiffness derivative approach, L-ZFEM, tha
Publikováno v:
ACM Transactions on Mathematical Software. 46:1-30
Multicomplex and multidual numbers are two generalizations of complex numbers with multiple imaginary axes, useful for numerical computation of derivatives with machine precision. The similarities between multicomplex and multidual algebras allowed u
Autor:
Andres M. Aguirre-Mesa, Sara Restrepo-Velasquez, Daniel Ramirez-Tamayo, Arturo Montoya, Harry Millwater
Publikováno v:
Engineering Fracture Mechanics. 277:108981
Publikováno v:
Journal of Petroleum Science and Engineering. 179:1023-1036
Rate of penetration (ROP) is a key metric used to monitor the success of drilling a well. It is directly affected by drilling vibrations since excessive vibrations result in a reduction of ROP. Vibration modeling and monitoring is a complex process o
Publikováno v:
Journal of Natural Gas Science and Engineering. 67:71-81
Drilling optimization is typically tackled by optimizing the rate of penetration (ROP). However, most ROP optimization models do not consider the effect of drilling vibrations, a major ROP inhibitor. To resolve this limitation, this paper introduces
Publikováno v:
International Journal of Pressure Vessels and Piping. 173:101-113
The incorporation of residual stress states into structural components is often used to improve fatigue performance. However there is frequently significant uncertainty regarding the magnitude of the induced residual stresses due to variation in mate