نتایج جستجو برای: Induced Anisotropy

تعداد نتایج: 1010739  

Journal: :روش های عددی در مهندسی (استقلال) 0
امیر هوشنگ اخویسی a. h. akhaveissy [email protected] حمید توانایی فر h. tavanaei far گروه مهندسی عمران دانشگاه رازی کرمانشاه

this paper presents a macro model to predict unreinforced masonry structures in plane behavior. the model is based on the concept of multilaminate theory. in the past, the method has been used to model behavior of soil, disregarding the cohesion and the tensile strength. regarding its mathematical base, and the possibility of applying in other cases, this method is used to predict the ultimate ...

Anisotropy of sand is mainly due to the geometrical arrangement of particles that depends on the orientation of applied load respect to the bedding plane. It is geologically due to micro-fabric created by the arrangement of the particles configured during deposition. Most of the models develop using stress/strain invariants are not capable of identifying this kind of anisotropy. This is mainly ...

ژورنال: ژئوفیزیک ایران 2018

The Zagros collision zone is known as an active tectonic zone that represents the tectonic boundary between the Eurasian and Arabian plates. A popular strategy for gaining insight into the upper mantle processes is to examine the splitting of seismic shear waves and interpret them in terms of upper mantle anisotropy and deformation. Core phases SK(K)S from over 278 earthquakes (MW ≥ ...

Journal: :international journal of advanced design and manufacturing technology 0
milad janbakhsh iran university of science and technology mohammad riahi iran university of science and technology faramarz djavanroodi iran university of science and technology

recently, offshore and ocean engineering have been dealing with novel materials that play a significant role in reducing the weight of structures used in the ship construction industry. 5xxx series of aluminum alloys are of the novel alloys are suitable for construction of ship hulls and the topside structures of offshore platforms. within different 5xxx aluminum alloys, aa5083 is of great impo...

Journal: :فیزیک زمین و فضا 0
منصوره منتهایی استادیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران بنفشه حبیبیان دهکردی استادیار بخش ژئومغناطیس، مؤسسة ژئوفیزیک دانشگاه تهران

in an electrically anisotropic media, current density  is not aligned with the electric field  and varies with the e-field direction. this can be considered as the spatial aliasing effects aroused by the subsurface structures whose individual dimensions are smaller than the inductive length scale of diffusively propagating em fields. the role of these structures is particularly significant in t...

Journal: :Physical Chemistry Chemical Physics 2018

Journal: :international journal of civil engineering 0
seyed amirodin sadrnejad k.n.toosi university of tech hamid karimpour the catholic university of american

the present paper is devoted to a new critical state based plasticity model able to predict drained and undrained behaviour of granular material. it incorporates a bounding surface plasticity model describing in multilaminate framework to capitalize on advantages of this mathematical framework. most of the models developed using stress/strain invariants are not capable of identifying the parame...

2008
Xia Li Xiang-Song Li

A granular material is most likely to possess an initial anisotropic structure due to the depositional process or the previous stress history. There is also induced fabric anisotropy during shearing. Concerning the significant influence of fabric anisotropy on the stress-strain behaviour of a granular material, in-depth investigation on the two kinds of fabric anisotropy is essential. Initial f...

Journal: :Revue de l'Institut Français du Pétrole 1998

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