نتایج جستجو برای: orthotropic plasticity

تعداد نتایج: 59896  

The present paper deals with the mixed mode fracture analysis of a weakened orthotropic half-plane with multiple cracks propagation. The orthotropic half-plane contains Volterra type glide and climb edge dislocations. It is assumed that the medium is under in-plane loading conditions. The distributed dislocation technique is used to obtain integral equations for the dynamic problem of multiple ...

- Smita A Pramanik S Gupta, S Pramanik,

The occurrence of SH wave propagation under the effect of a point source in an orthotropic substratum lying over a heterogeneous orthotropic half space is deliberated in the prospect of a devastating earthquake. The quadratic alteration is acknowledged for density and shear modulus which is hypothesized to be a function of depth. The method of Green's function and transformation technique contr...

M Foroutan, R Moradi-Dastjerdi

In this paper, free vibration analysis of orthotropic functionally graded material (FGM) cylinders was carried out by a Mesh-Free method. In this analysis, moving least squares shape functions are used for approximation of displacement field in the weak form of equilibrium equation. Essential boundary conditions are imposed by transformation method. In this simulation, an axisymmetric model is ...

Journal: :Journal of the Mechanics and Physics of Solids 2019

Journal: :thrita 0
masoumeh kourosh arami department of basic sciences, faculty of allied medicine, iran university of medical sciences, tehran, ir iran; department of basic sciences, faculty of allied medicine, iran university of medical sciences, tehran, ir iran. tel: +98-2186704788 behnam jameie department of basic sciences, faculty of allied medicine, iran university of medical sciences, tehran, ir iran

context the current study aimed to review research articles concerning cortical representational plasticity following the manipulations of inputs. evidence acquisition this review article compromised previous studies in pubmed, google scholar and scientific information databases according to the keywords since 1988. results ca1 neurons depolarization paired with ca3 presynaptic input result in ...

2011
Rajneesh Kumar Rajeev Kumar

The purpose of this research is to study the wave propagation in orthotropic generalized thermoelastic half-space with voids under initial stress. It is found that, for two dimensional model of orthotropic generalized thermoelastic material with voids under initial stress, there exists three quasi-longitudinal waves namely, quasi-longitudinal wave (QP-mode), quasi-longitudinal thermal wave (QPT...

1997
L. J. Gray Glaucio H. Paulino

This paper discusses the formulation and implementation of the symmetric Galerkin boundary integral method for two dimensional linear elastic orthotropic fracture analysis. For the usual case of a traction-free crack, the symmetry of the coe cient matrix can be e ectively exploited to signi cantly reduce the computational work required to construct the linear system. In addition, computation ti...

2005
Niels L. Pedersen

1. Abstract Composite plates are designed in order to maximize the performance with respect to eigenfrequencies. The plates are considered to be laminates where the individual plies consist of orthotropic material. The design task is the orientation of the orthotropic material in each element of the discretization and the ratio between the amounts of material put in the two directions of the fi...

1995
L Berlyand K Promislow

We consider two-dimensional, two-phase, elastic composites consisting of a soft isotropic medium into which hard elastic inclusions have been placed, requiring that the inclusions be interconnected only at corner points. Denoting by the ratio of Young's modulus for the soft and hard phases, we show that the leading term in the asymptotic expansion as ! 0 for the eeective moduli can be calculate...

2017
Gengtai Ye Kunzhai Huang Jiang Yu Liying Zhao Xianjun Zhu Qingbin Yang Wende Li Yuming Jiang Baoxiong Zhuang Hao Liu Zhiyong Shen Da Wang Li Yan Lei Zhang Haipeng Zhou Yanfeng Hu Haijun Deng Hao Liu Guoxin Li Xiaolong Qi

MicroRNAs (miRNAs) play important roles in regulating tumour development and progression. Here we show that miR-647 is repressed in gastric cancer (GC), and associated with GC metastasis. Moreover, we identify that miR-647 can suppress GC cell migration and invasion in vitro. Mechanistically, we confirm miR-647 directly binds to the 3' untranslated regions of SRF mRNA, and SRF binds to the CArG...

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