نتایج جستجو برای: Donnell

تعداد نتایج: 124  

Journal: :PS: Political Science & Politics 1991

2012
Jiří Jarušek Igor Bock

The existence of solutions is proved for the unilateral dynamic contact of a von Kármán-Donnell shell with a rigid obstacle. Both purely elastic material and a material with a singular memory are treated.

2013
R. ANSARI H. ROUHI B. ARASH

Abstract– This article describes an investigation into the free vibration of double-walled carbon nanotubes (DWCNTs) using a nonlocal elastic shell model. Eringen’s nonlocal elasticity is implemented to incorporate the scale effect into the Donnell shell model. Also, the van der Waals interaction between the inner and outer nanotubes is taken into account. A new numerical solution method from i...

2007
Nicholas Boechler

iii ACKNOWLEDGEMENTS I wish to thank Dr. Komerath, my research advisor. It has been a true honor, to work with him in his research endeavors. In addition to the great opportunity he has given me, he has always listened to my ideas, and given me his confidence, respect, encouragement, and support. I am forever indebted. I would like to thank my mother and father for everything. I would like than...

2000
Vassil M. VASSILEV Peter A. DJONDJOROV

Recent results concerning the application of Lie transformation group methods to structural mechanics are presented. Focus is placed on the point Lie symmetries and conservation laws inherent to the Bernoulli–Euler and Timoshenko beam theories as well as to the Marguerrevon Kármán equations describing the large deflection of thin elastic shallow shells within the framework of the nonlinear Donn...

Journal: :Nephrology 2021

M Arnold--Chamney, S Bateman, K Owen, Jesudason, McDonald, O Pearson, N Sinclair, I Williamson, O, Donnell K, J Kelly

2011
I. Bock

We deal with an initial-boundary value problem describing the perpendicular vibrations of a viscoelastic Kármán-Donnell shell with a rigid inner obstacle. A weak formulation of a problem is in a form of a hyperbolic variational inequality. We solve this problem using the penalization method

2014
Drew Michael S. Donnell Jessica L. Seidelman Christopher L. Mendias Bruce S. Miller James E. Carpenter Richard E. Hughes

Drew Michael S. Donnell, Jessica L. Seidelman, Christopher L. Mendias, Bruce S. Miller, James E. Carpenter and Richard E. Hughes* Department of Orthopaedic Surgery, University of Michigan, 2017 Biomedical Research Building, 109 Zina Pitcher Place, Ann Arbor, MI, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA; Department of Industrial & Operations Engineeri...

2011
Igor Bock Jirí Jarusek

We deal with initial-boundary value problems describing vertical vibrations of viscoelastic von Kármán-Donnell shells with a rigid inner obstacle. The short memory (Kelvin-Voigt) material is considered. A weak formulation of the problem is in the form of the hyperbolic variational inequality. We solve the problem using the penalization method.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1389

تحلیل غیر خطی پوسته های استوانه ای fgm جدار نازک با سطح مقطع مدور و نقص اولیه تحت بارگذاری یکنواخت محوری و شرایط مرزی مختلف ارائه گردیده است. بدین منظور تئوری کلاسیک پوسته جدار نازک (kirchhoff-love) با روابط سینماتیکی donnell (donnell-type) و با در نظرگیری رفتار الاستیک مواد بکاد گرفته می شود. به علاوه روش حل مبتنی بر رهیافت نیمه تحلیلی در پیوند با روش تفاضل محدود (fdm) شرح داده می شود و نتایج ...

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