International Journal of Pressure Vessels and Piping, 1999
This paper presents the alternating method to study the stress distributions of the multiple circ... more This paper presents the alternating method to study the stress distributions of the multiple circular holes with the rhombic pattern in the infinite domain. For the purposes of the efficiency and simplicity, one must use an analytical solution for a single circular hole in an infinite domain, subjected to the arbitrary traction on the circle boundary. Then, the analytical solution
International Journal of Solids and Structures, 1999
This paper presents an efficient alternating method for analyzing the interactions among multiple... more This paper presents an efficient alternating method for analyzing the interactions among multiple circular holes in a two-dimensional infinite domain. An analytical solution is derived for a single circular hole in an infinite domain subjected to the arbitrary tractions across the circle boundary to achieve this purpose. This analytical solution correlates with a successive iterative superposition process capable of satisfying
Mechanics Based Design of Structures and Machines, 2000
ABSTRACT The effects of irregular ligaments among a row of infinite circular holes are analyzed. ... more ABSTRACT The effects of irregular ligaments among a row of infinite circular holes are analyzed. For rigorous calculations of simplicity, an efficient alternating method is used to study interactions among multiple holes with irregular distributions. Numerical results for stress concentration factors are presented for various patterns and hole spacing. Based on these analyses, acceptance crierion irregularities in a row of circular holes is also evaluated.
ABSTRACT This paper presents a new efficient procedure to analyze the thermoelastic problems with... more ABSTRACT This paper presents a new efficient procedure to analyze the thermoelastic problems with multiple circular holes in two-dimensional infinite domain using an alternating method. To achieve this purpose, the analytical solutions including the temperature and associated thermal stress for the arbitrary heat flux across the single circular hole boundary in an infinite domain are first derived. Both the temperature and thermal stress fields in the thermal problems are simultaneously solved by these analytical solutions with the successive iterative superposition process. Compared with the solution of the conventional finite-element technique, the present method has been more accurate and has more advantages. Effects of the distributions and sizes of the holes on the stress concentration in the thermal problems also are evaluated in detail herein.
The use of lasers in cosmetic surgery has increased dramatically in the past decade. To achieve m... more The use of lasers in cosmetic surgery has increased dramatically in the past decade. To achieve minimal damage to tissues, the study of the temperature distribution of skin in laser irradiation is very important. The phenomenon of the thermal wave effect is significant due to the highly focused light energy of lasers in very a short time period. The conventional
A technique of parallel computing in simulating the deposition of diamond-like carbon thin film b... more A technique of parallel computing in simulating the deposition of diamond-like carbon thin film by molecular dynamics is proposed. The Tersoff potential which is a multi-body potential is adopted here in determining inter-atomic forces. The deposition of carbon thin film on diamond substrates and silicon substrates under different incident kinetic energies and different substrate temperatures are investigated. The multiprocessor of workstation computer containing 8 cores used for simulating the deposition is based on MPICH2 which is an implementation of message passing interface. The results show that the percentages of deposited sp3 carbon atoms differ from 6.1% to 34.8% depending on the type of substrate, incident kinetic energy and substrate temperature.
International Journal of Pressure Vessels and Piping, 1999
This paper presents the alternating method to study the stress distributions of the multiple circ... more This paper presents the alternating method to study the stress distributions of the multiple circular holes with the rhombic pattern in the infinite domain. For the purposes of the efficiency and simplicity, one must use an analytical solution for a single circular hole in an infinite domain, subjected to the arbitrary traction on the circle boundary. Then, the analytical solution
International Journal of Solids and Structures, 1999
This paper presents an efficient alternating method for analyzing the interactions among multiple... more This paper presents an efficient alternating method for analyzing the interactions among multiple circular holes in a two-dimensional infinite domain. An analytical solution is derived for a single circular hole in an infinite domain subjected to the arbitrary tractions across the circle boundary to achieve this purpose. This analytical solution correlates with a successive iterative superposition process capable of satisfying
Mechanics Based Design of Structures and Machines, 2000
ABSTRACT The effects of irregular ligaments among a row of infinite circular holes are analyzed. ... more ABSTRACT The effects of irregular ligaments among a row of infinite circular holes are analyzed. For rigorous calculations of simplicity, an efficient alternating method is used to study interactions among multiple holes with irregular distributions. Numerical results for stress concentration factors are presented for various patterns and hole spacing. Based on these analyses, acceptance crierion irregularities in a row of circular holes is also evaluated.
ABSTRACT This paper presents a new efficient procedure to analyze the thermoelastic problems with... more ABSTRACT This paper presents a new efficient procedure to analyze the thermoelastic problems with multiple circular holes in two-dimensional infinite domain using an alternating method. To achieve this purpose, the analytical solutions including the temperature and associated thermal stress for the arbitrary heat flux across the single circular hole boundary in an infinite domain are first derived. Both the temperature and thermal stress fields in the thermal problems are simultaneously solved by these analytical solutions with the successive iterative superposition process. Compared with the solution of the conventional finite-element technique, the present method has been more accurate and has more advantages. Effects of the distributions and sizes of the holes on the stress concentration in the thermal problems also are evaluated in detail herein.
The use of lasers in cosmetic surgery has increased dramatically in the past decade. To achieve m... more The use of lasers in cosmetic surgery has increased dramatically in the past decade. To achieve minimal damage to tissues, the study of the temperature distribution of skin in laser irradiation is very important. The phenomenon of the thermal wave effect is significant due to the highly focused light energy of lasers in very a short time period. The conventional
A technique of parallel computing in simulating the deposition of diamond-like carbon thin film b... more A technique of parallel computing in simulating the deposition of diamond-like carbon thin film by molecular dynamics is proposed. The Tersoff potential which is a multi-body potential is adopted here in determining inter-atomic forces. The deposition of carbon thin film on diamond substrates and silicon substrates under different incident kinetic energies and different substrate temperatures are investigated. The multiprocessor of workstation computer containing 8 cores used for simulating the deposition is based on MPICH2 which is an implementation of message passing interface. The results show that the percentages of deposited sp3 carbon atoms differ from 6.1% to 34.8% depending on the type of substrate, incident kinetic energy and substrate temperature.
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