نتایج جستجو برای: thermo mechanical load

تعداد نتایج: 385413  

Javad Jafari Fesharaki, Sa’id Golabi Seyed Ghasem Madani

This research develops thermo-elastic analysis of a functionally graded cylinder under thermo-mechanical loadings. Heat conduction equation in cylindrical coordinate system is solved. Thermal conductivity coefficient is graded along the radial direction. By considering a symmetric distribution of temperature, loading and boundary conditions, strain-displacement and stress-strain relations can b...

2002
R. C. BATRA

To determine the deformation of a body from the system of differential equations governing its thermo-mechanical deformations, we need side conditions such as boundary conditions. The most frequently employed boundary conditions are those of place and/or traction in a purely mechanical problem and of temperature and/or heat flux in a thermal problem. These and other more familiar mechanical bou...

Journal: :Metals 2021

Modelling of the deformation process Al85Y8Ni5Co2 amorphous alloys was carried out under simultaneous application cyclic mechanical load (at 0.3 or 3 Hz frequencies) and continuously increasing temperature (heating rate 5 K/min). It is shown that specimens occurs by hyperbolic temporal dependence. analytically determined experimentally proved for non-isothermal deformation, wave effects take pl...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2005
Jan De Munck Kirsten Van Landuyt Eduardo Coutinho André Poitevin Marleen Peumans Paul Lambrechts Bart Van Meerbeek

UNLABELLED A widely used artificial aging methodology is thermo-cycling. The ISO TR 11450 standard (1994) recommends 500 cycles in water between 5 and 55 degrees C. Recent literature revealed that more cycles are needed to mimic long-term bonding effectiveness. Furthermore, the artificial aging effect induced by thermo-cycling is not clearly established. Two underlying mechanisms can be advance...

Babak Beheshti Hojjat Ashouri Mohammad Reza Ebrahimzadeh

Loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. One of the most important durability problems in diesel engines is due to the cracks valves bridge area. The purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. The results of the thermo-mechani...

Journal: :Chemie Ingenieur Technik 2021

Abstract The alternative membrane cleaning method Temperature Enhanced Backwash exploits elevated temperatures of typically 125 °C to realize high shear rate. This exceeds usual operating by far. Therefore, the thermo‐mechanical properties polymeric membranes were investigated. A repeated load cycle testing was suited and sensitive detect failure material potting. All tested PES showed be stabl...

2017
Kristina Gorseta Domagoj Glavina

Numerous positive properties of glass ionomer cements including biocompatibility, bioactivity, releasing of fluoride and good adhesion to hard dental tissue even under wet conditions and easy of handling are reasons for their wide use in paediatric and restorative dentistry. Their biggest drawbacks are the weaker mechanical properties. An important step forward in improving GIC's features is th...

Journal: :Composite Structures 2021

This study presents a coupled thermo-fluid-mechanical peridynamic model to predict composite responses under fire scenarios. Three-layer laminated is modelled by using ordinary state-based thermo-mechanical peridynamics. Both the mechanical deformation and heat conduction are simulated considering thermal degradation properties of composites. The as heat-conducting fluid thermo-fluid based on d...

2002
MARK A. IADICOLA JOHN A. SHAW

An experimental arrangement is demonstrated that overcomes some difficulties in thermo-mechanical testing of thin Shape Memory Alloy (SMA) wires under uniaxial tension. It is now well known that stress-induced transformations in some SMAs under uniaxial loading can lead to mechanical instabilities and propagating phase transformation fronts. Critical parameters, such as nucleation barriers are ...

Journal: :Acta Polytechnica CTU Proceedings 2021

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