نتایج جستجو برای: thermal stress analysis

تعداد نتایج: 3353344  

2016
Nannan Hu Ke Wang Hongming Ma Wanjiang Pan Qingqing Chen

The glass fiber reinforced epoxy resin composites play an important role in superconducting Tokamak, which are used to insulate the metal components, such as superconducting winding, cooling pipes, metal electrodes and so on. For the components made of metal and glass fiber reinforced epoxy resin composites, thermal shrinkage leads to non-ignorable thermal stress, therefore, much attention shou...

2015
Choondal B. Sobhan Suresh V. Garimella

The extremely high rates of heat transfer obtained by employing microchannels makes them an attractive alternative to conventional methods of heat dissipation, especially in applications related to the cooling of microelectronics. A compilation and analysis of the results from investigations on fluid flow and heat transfer in microand mini-channels and microtubes in the literature is presented ...

2016
P. Chandra Reddy M. C. Raju G.S.S. Raju S.V.K. Varma

The present analysis is focused on free convective heat and mass transfer characteristics of magneto-nanofluid flow through a moving vertical plate in the presence of thermal radiation and thermal diffusion. The water-based nanofluid containing copper is taken into consideration. A uniform magnetic field is applied perpendicular to the plate. The governing equations are solved by applying finit...

2014
Soya Shinkai

We give a decomposition expression for dissipative heat using the instantaneous diffusion coefficient in a nonequilibrium steady state. The dissipative heat can be expressed using three diffusion coefficients: instantaneous, equilibrium, and drift. An experimental application of the decomposition expression permits us to evaluate the heat dissipation rate from singletrajectory data only. We als...

2009
R. X. Bai C. Yan

In this study, the stress-strain distributions and interface failure in a BGA (Ball Grid Array) package subjected to thermal cycling were investigated using 2D and 3D finite element analyses. The viscous behavior of the adhesive material and thermal mismatch between the dissimilar materials in the package were considered. The potential failure sites in the solider and adhesive joints were analy...

Journal: :journal of solid mechanics 0
m jabbari mechanical engineering department, yasouj university, p.o.box: 75914-353, yasouj, iran m zamani nejad mechanical engineering department, yasouj university, p.o.box: 75914-353, yasouj, iran m ghannad mechanical engineering faculty, shahrood university, shahrood, iran

in this paper, thermo-elastic analysis of a rotating thick truncated conical shell subjected to the temperature gradient, internal pressure and external pressure is presented. given the existence of shear stress in the conical shell due to thickness change along the axial direction, the governing equations are obtained based on first-order shear deformation theory (fsdt). these equations are so...

Journal: :علوم دامی 0
مریم اعلائی دانشجوی دکتری، دانشگاه ایلام محمد حسین شهیر دانشیار، دانشگاه زنجان مرتضی ممویی دانشیار، دانشگاه رامین سمیه سالاری استادیار، دانشگاه ورامین

in this study, effect early age feed restriction and thermal conditioning on growth ,carcass characteristics broiler chickens subjected to heat stress was evaluated. three hundred chicks (cobb500) were randomly divided into four equal groups as treatments including thermal conditioning group (tc), feed restriction-thermal conditioning group (tcfr), feed restriction group (fr) and control group ...

2009
EUSUN YU JEONG-YUN SUN KYU HWAN OH

Computational simulations on the thermal analysis of metal matrix composite (MMC) composed of Al and SiC were performed in extended areas of SiC volume fraction. Due to the experimental limitations, only the narrow range of SiC volume fraction has been examined. Through the simulation, which enables current experimental situation to extend, we attempted to explore the dependencies of thermal an...

2010
Y. Liao L. D. Marks

We generalize a model for friction at a sliding interface involving the motion of misfit dislocations to include the effect of thermally activated transitions across barriers. We obtain a comparatively simple form with the absolute zero-temperature Peierls barrier replaced by an effective Peierls barrier which varies exponentially with temperature, in agreement with recent experimental observat...

Journal: :Journal of animal science 1989
M A McGuire D K Beede M A DeLorenzo C J Wilcox G B Huntington C K Reynolds R J Collier

Six Holstein cows (averaging 475 kg body weight, 2.3 parities and 96 d in lactation) fitted with catheters in the hepatic portal vein, mesenteric vein and intercostalis posterior artery were exposed to treatments of thermal comfort environments with libitum or restricted (75% of ad libitum) DM intake and a thermal stress environment with ad libitum intake in two balanced 3 x 3 latin squares to ...

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