نتایج جستجو برای: inelastic deformation

تعداد نتایج: 84449  

2017
Sebastian Eckert Jesper Norell Piter S Miedema Martin Beye Mattis Fondell Wilson Quevedo Brian Kennedy Markus Hantschmann Annette Pietzsch Benjamin E Van Kuiken Matthew Ross Michael P Minitti Stefan P Moeller William F Schlotter Munira Khalil Michael Odelius Alexander Föhlisch

The femtosecond excited-state dynamics following resonant photoexcitation enable the selective deformation of N-H and N-C chemical bonds in 2-thiopyridone in aqueous solution with optical or X-ray pulses. In combination with multiconfigurational quantum-chemical calculations, the orbital-specific electronic structure and its ultrafast dynamics accessed with resonant inelastic X-ray scattering a...

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Journal: :Journal of biomechanics 2012
Eoghan Maher Michael Early Arthur Creane Caitríona Lally Daniel J Kelly

Understanding the mechanical behaviour of arterial tissue is vital to the development and analysis of medical devices targeting diseased vessels. During angioplasty and stenting, stress softening and permanent deformation of the vessel wall occur during implantation of the device, however little data exists on the inelastic behaviour of cardiovascular tissue and how this varies through the arte...

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Journal: مواد پیشرفته در مهندسی (استقلال) 2006
and M. Karimi, F. Nateghi-Elahi, M. Motamedi, M. Ziaeefar,

Energy absorber systems like metallic dampers for controlling the structural vibrations due to earthquake have witnessed considerable development in the past few decades. Also there are some studies on the energy absorption of thin-walled tubes due to impact load. Thin-walled tubes have a large deformation capacity and are suitable energy absorbers in the structure during an earthquake provided...

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2009
Marios D. Demetriou William L. Johnson Konrad Samwer

The sequence of shear transformation events that lead to a shear band transition in amorphous metals is described by a spatially random coarse-grained model calibrated to obey the thermodynamic scaling relations that govern flow in a real glass. The model demonstrates that shear banding is a consequence of local shear transformation events that self-organize along planes of maximum resolved she...

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2004
Yotam Gingold Adrian Secord Jefferson Y. Han Eitan Grinspun Denis Zorin

We introduce a method for simulating the inelastic deformation of thin shells: we model plasticity and fracture of curved, deformable objects such as light bulbs, egg-shells and bowls. Our novel approach uses triangle meshes yet evolves fracture lines unrestricted to mesh edges. We present a novel measure of bending strain expressed in terms of surface invariants such as lengths and angles. We ...

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Journal: :Applied Physics Letters 2009

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Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1982

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2006
Dao T. Khoa

DWBA analysis of the inelastic S(p, p′) and O(p, p′) scattering data measured in the inverse kinematics has been performed to determine the isoscalar (δ0) and isovector (δ1) deformation lengths of the 2+1 excitations in the Sulfur and Oxygen isotopes using a compact folding approach. A systematic N-dependence of δ0 and δ1 has been established which shows a link between δ1 and the neutron-shell ...

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2010
Min Tao Atul H. Chokshi Robert D. Conner Guruswami Ravichandran William L. Johnson

The purpose of this study is to experimentally investigate the interaction of inelastic deformation and microstructural changes of two Zr-based bulk metallic glasses (BMGs): Zr41.25Ti13.75Cu12.5Ni10Be22.5 (commercially designated as Vitreloy 1 or Vit1) and Zr46.75Ti8.25Cu7.5Ni10Be27.5 (Vitreloy 4, Vit4). High-temperature uniaxial compression tests were performed on the two Zr alloys at various ...

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Journal: :Entropy 2015
Anastasiia Kostina Oleg Plekhov

This work is devoted to the development of a theoretical approach for the calculation of entropy in metals under plastic deformation. The thermodynamic analysis of the plastic deformation process allowed us to obtain the expression for determination of the entropy production. The value of the entropy production in an Armco iron specimen under plastic deformation as calculated the basis of the p...

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