نتایج جستجو برای: creep and relaxation

تعداد نتایج: 16841633  

A Loghman, V Atabakhshian

In the present paper, time dependent creep behavior of hollow circular rotating cylinders made of exponentially graded material (EGM) is investigated. Loading is composed of an internal pressure, a distributed temperature field due to steady state heat conduction with convective boundary condition and a centrifugal body force. All the material properties are assumed to be exponentially graded a...

Journal: :Science China Physics, Mechanics & Astronomy 2021

Dynamic mechanical relaxation is a fundamental tool to understand the and physical properties of viscoelastic materials like glasses. Mechanical spectroscopy shows that high-entropy bulk metallic glass (La30Ce30Ni10Al20Co10) exhibits distinct β-relaxation feature. In present research, dynamic analysis thermal creep were performed using this material at temperature domain around β relaxation. Th...

Creep phenomenon in rock engineering plays a key role in development of underground spaces as they must be stable enough for a long period of time. Current research involved designing and manufacturing of a new creep testing machine. The equipment is capable to perform simultaneous light-duty creep tests on more than one cylindrical rock samples at a very low cost.To evaluate the equipment’s pe...

Journal: :Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine 2013

Journal: :Journal of biomechanics 2007
John A Stella Jun Liao Michael S Sacks

Despite continued progress in the treatment of aortic valve (AV) disease, current treatments continue to be challenged to consistently restore AV function for extended durations. Improved approaches for AV repair and replacement rests upon our ability to more fully comprehend and simulate AV function. While the elastic behavior the AV leaflet (AVL) has been previously investigated, time-depende...

ژورنال: گلجام 2010
بصام, سید جلال الدین, حسینی هاشمی, شاهرخ, شیخ زاده نجار, سعید, مجابی, سید علی,

If a carpet is put under pressure during use or storage, its thickness decreases instantly and continues to decrease slowly as the pressure is not removed. Some part of this loss of thickness is not recoverable. This phenomenon is called creep and is influenced by parameters such as temperature and humidity, and it may cause breakage, burst, crease, bump, and folding line in the carpet. By stud...

Journal: :DEStech Transactions on Materials Science and Engineering 2017

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