نتایج جستجو برای: soil young’s modulus

تعداد نتایج: 206406  

2015
Won Taek Oh

The modulus of elasticity Youngs modulus E is a material property, that. From the Hooks law the modulus of elasticity is defined as the ratio of the stress to.modulus of elasticity of the cultured SC cells examined in this study, in central, non-nuclear regions, ranged between. Johnson B.all require an effective E, the Youngs modulus or elastic modulus, to quantify. Elastic moduli, such as the ...

Deformation modulus of rock mass has a significant role in the support design of an underground excavation. It is determined by expensive in-situ tests or by empirical models. Existing models for estimation of deformation modulus do not consider its stress dependence. Herein, data from several sources is used to develop a stress- (depth-) dependent relation for estimation of deformation modulus...

2015
Cyrus Djahedi

Cellulose-based materials draw their good mechanical properties from the cellulose crystal. Improved understanding of crystal properties could lead to a wider range of applications for cellulose-based materials, Cellulose crystals show high axial Youngs modulus. Cellulose can attain several allomorphic forms which show unique structural arrangements in terms of both intra-molecular and intermol...

2003
J. G. Lavin P. L. Gai E. D. Boyes S. Subramoney

Single wall nanotubes have been demonstrated to have remarkable physical properties: Youngs Modulus of >ITPa; breaking strength of 100 G ~ and metallic conductivity. The most perfect examples of them have been produce~ via laser ablation or arc-discharge processes [1,2]. These processes are characterized by theft low productivity, of the order of grams per day per unit, and they are generally a...

2004
Jean-Louis BRIAUD

The modulus of a soil is one of the most difficult soil parameters to estimate because it depends on so many factors. Therefore when one says for example:”The modulus of this soil is 10,000 kPa”, one should immediately ask: “What are the conditions associated with this number?” The following is a background on some of the important influencing factors for soil moduli. It is not meant to be a th...

Journal: :Eng. Appl. of AI 2012
Azadeh Rashed Jafar Bolouri Bazaz Amir Hossein Alavi

Soil deformation modulus is an essential parameter for the analysis of behavior of substructures. Despite its importance, little attention is paid to developing empirical models for predicting the deformation moduli obtained from the field tests. To cope with this issue, this paper presents the development of a new prediction model for the pressuremeter soil deformation modulus utilizing a line...

Journal: :journal of computational applied mechanics 0
kazem jafari naeimi assistant professor, department of mechanical engineering of biosystems, faculty of agriculture, shahid bahonar university of kerman, kerman, iran hossein baradaran associate professor, department of mechanical engineering, faculty of engineering, shahid bahonar university of kerman, kerman, iran razie ahmadi m.s. student, department of mechanical engineering of biosystems, faculty of agriculture, shahid bahonar university of kerman, kerman, iran malihe shekari m.s. student, department of mechanical engineering of biosystems, faculty of agriculture, shahid bahonar university of kerman, kerman, iran

soil is a nonrenewable source that needs considerable management to prevent physical deteriorationby erosion and compaction. compacted soil causes low fertility and yield. the purpose of this study isto investigate the effect of viscoelastic properties of soil and to determine important factors oncompaction. furthermore, stress distribution, prediction of soil compaction and simulation of its e...

In recent years, various studies have been undertaken on how to use waste materials in civil engineering projects. Among waste materials, waste rubber has been highlighted to be used for different purposes such as reinforcing of soil and making of reinforced slopes. To investigate the properties of granulated rubber-soil mixture and its application in making of slopes behind retaining walls, so...

Journal: :Express Polymer Letters 2021

Polymer composites were manufactured using biocarbon particles as a reinforcing filler to improve the mechanical and thermal properties. However, detailed examination of dispersion agglomeration is essential correlate matrix interactions with properties product. We investigated variations mechanical, behaviour fillers, polypropylene coconut shell composites. PP CSB prepared by melt mixing proce...

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