Size dependence of yield strength simulated by a dislocation-density function dynamics approach
نویسندگان
چکیده
منابع مشابه
Small size strength dependence on dislocation nucleation
J.D. Nowak, A.R. Beaber, O. Ugurlu, S.L. Girshick and W.W. Gerberich* Hysitron Incorporated, 10025 Valley View Road, Minneapolis, MN 55344, USA Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Ave SE, Minneapolis, MN 55455, USA Characterization Facility, University of Minnesota, Minneapolis, MN 55455, USA Department of Mechanical Engineering, Uni...
متن کاملSize Dependence of the Elastic Properties of Pd Nanowire: Molecular Dynamics Simulation
The mechanical properties including elastic stiffness constants as well as bulk modulus of Palladium (Pd) nanowire were calculated in the constant temperature and pressure (NPT), ensemble by molecular dynamics (MD) simulation technique. The quantum Sutton-Chen (Q-SC) many-body potential was used to calculate the cohesive energy as well as forces experience by every atoms. The temperature and pr...
متن کاملContribution to size effect of yield strength from the stochastics of dislocation source lengths in finite samples
Recent works show that the yield strength of metals increases steeply with decreasing sample size. In this work, it is shown that this sample size effect can be rationalized almost completely by considering the stochastics of dislocation source lengths in samples of finite size. The statistical first and second moments of the effective source length are derived as a function of sample size. The...
متن کاملconceptual metaphor and the acquisition of english metaphorical competence by persian english majors: a cognitive linguistic approach
بنا براستدلال زبانشناسان شناختی ، اندیشه آدمی تا حدّ زیادی استعاری است: ما اندیشه ای را، و یا قلمرو مفهومی معیّنی را، بر حسب اندیشه و یا قلمرو مفهومی معیّن دیگری درک ویا تجربه می کنیم. موارد این نوع اندیشیدن ، که استعارات مفهومی خوانده می شوند، در زبان های گوناگون به صورت تعبیرات استعاری واقعیّت می یابند. به گمان بعضی از پزوهشگران زبان دوم، آموزش وفراگیری این گونه تعبیرات باید بخشی لازم از برنامه ه...
15 صفحه اولEffect of corm size and plant population density on corm yield of Taro (Colocasia Esculenta L.)
Taro (ColocasiaesculentaL. Schott) is a perennial root crop that belongs to Araceace family. It is widely cultivated as a staple food in Africa, Asia and pacific Islands. Despite its importance, there is limited information on many aspects of the crop. In order to obtain data that can support improved and sustainable taro production, a field trial was conducted to study the effects of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Modelling and Simulation in Materials Science and Engineering
سال: 2015
ISSN: 0965-0393,1361-651X
DOI: 10.1088/0965-0393/23/3/035001