Combined Experimental and Well Log Evaluation of Anisotropic Mechanical Properties of Shales: An Application to Wellbore Stability in Bakken Formation

2020 ◽  
Author(s):  
Saeed Rafieepour ◽  
Danzhu Zheng ◽  
Stefan Miska ◽  
Evren Ozbayoglu ◽  
Nicholas Takach ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wellbore Stability ◽  
Well Log ◽  
Bakken Formation ◽  
Anisotropic Mechanical Properties ◽  
Well Log Evaluation

scholarly journals Dynamic Response of Thermally Bonded Bicomponent Fibre Nonwovens

2011 ◽  
Vol 70 ◽  
pp. 405-409 ◽  
Author(s):  
Emrah Demirci ◽  
Memiş Acar ◽  
Behnam Pourdeyhimi ◽  
Vadim V. Silberschmidt
Keyword(s):  
Mechanical Properties ◽  
Dynamic Response ◽  
Fibre Diameter ◽  
Orientation Distribution ◽  
Nonwoven Fabric ◽  
Woven Fabrics ◽  
Core Material ◽  
Finite Element Software ◽  
Anisotropic Mechanical Properties ◽  
Fibre Matrix

Having a unique microstructure, nonwoven fabrics possess distinct mechanical properties, dissimilar to those of woven fabrics and composites. This paper aims to introduce a methodology for simulating a dynamic response of core/sheath-type thermally bonded bicomponent fibre nonwovens. The simulated nonwoven fabric is treated as an assembly of two regions with distinct mechanical properties. One region - the fibre matrix – is composed of non-uniformly oriented core/sheath fibres acting as link between bond points. Non-uniform orientation of individual fibres is introduced into the model in terms of the orientation distribution function in order to calculate the structure’s anisotropy. Another region – bond points – is treated in simulations as a deformable bicomponent composite material, composed of the sheath material as its matrix and the core material as reinforcing fibres with random orientations. Time-dependent anisotropic mechanical properties of these regions are assessed based on fibre characteristics and manufacturing parameters such as the planar density, core/sheath ratio, fibre diameter etc. Having distinct anisotropic mechanical properties for two regions, dynamic response of the fabric is modelled in the finite element software with shell elements with thicknesses identical to those of the bond points and fibre matrix.

scholarly journals Anisotropic Mechanical Properties of Living Cells Revealed by Integrated Spinning Disk Confocal and Atomic Force Microscopy

2018 ◽  
Vol 114 (3) ◽  
pp. 513a
Author(s):  
Yuri M. Efremov ◽  
Mirian Velay-Lizancos ◽  
Daniel M. Suter ◽  
Pablo D. Zavattieri ◽  
Arvind Raman
Keyword(s):  
Mechanical Properties ◽  
Atomic Force Microscopy ◽  
Living Cells ◽  
Force Microscopy ◽  
Atomic Force ◽  
Spinning Disk ◽  
Anisotropic Mechanical Properties

Orientation of bone mineral and its role in the anisotropic mechanical properties of bone—Transverse anisotropy

1989 ◽  
Vol 22 (2) ◽  
pp. 157-164 ◽  
Author(s):  
Naoki Sasaki ◽  
Norio Matsushima ◽  
Tetsu Ikawa ◽  
Hidemi Yamamura ◽  
Akeharu Fukuda
Keyword(s):  
Mechanical Properties ◽  
Bone Mineral ◽  
Transverse Anisotropy ◽  
Anisotropic Mechanical Properties
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