Determination of fiber length and juvenile and mature wood zones in Acer velutinum Boiss. trees grown in Iran

2012 ◽  
Vol 14 (4) ◽  
pp. 323-326 ◽  
Author(s):  
Majid Kiaei ◽  
Reza Bakhshi ◽  
Samane Veylaki
Keyword(s):  
Fiber Length ◽  
Mature Wood

Determination of fiber length and juvenile and mature wood zones from Hevea brasiliensis trees grown in Brazil

2010 ◽  
Vol 69 (4) ◽  
pp. 659-662 ◽  
Author(s):  
A. L. Ferreira ◽  
E. T. D. Severo ◽  
F. W. Calonego
Keyword(s):  
Hevea Brasiliensis ◽  
Fiber Length ◽  
Mature Wood

scholarly journals Automatic Determination of Fiber-Length Distribution in Composite Material Using 3D CT Data

2010 ◽  
Vol 2010 (1) ◽  
Author(s):  
Matthias Teßmann ◽  
Stephan Mohr ◽  
Svitlana Gayetskyy ◽  
Ulf Haßler ◽  
Randolf Hanke ◽  
...  
Keyword(s):  
Composite Material ◽  
Fiber Length ◽  
Length Distribution ◽  
3D Ct ◽  
Automatic Determination ◽  
Fiber Length Distribution ◽  
Ct Data

Novel method for determination of critical fiber length in short fiber carbon/carbon composites by double lap joint

2013 ◽  
Vol 54 ◽  
pp. 365-370 ◽  
Author(s):  
Daniel Heim ◽  
Mathias Hartmann ◽  
Johannes Neumayer ◽  
Christian Klotz ◽  
Ömer Ahmet-Tsaous ◽  
...  
Keyword(s):  
Fiber Length ◽  
Short Fiber ◽  
Carbon Composites ◽  
Lap Joint ◽  
Novel Method ◽  
Critical Fiber Length

scholarly journals MORPHOLOGICAL PROPERTIES OF THE FIBERS OF DRY DEFIBRATION METHOD FOR CARDBOARD PRO-DUCTION

2019 ◽  
Author(s):  
Nikolay Petrovich Midukov ◽  
Yuliya Artemovna Lyalina ◽  
Viktor Sergeyevich Kurov ◽  
Aleksandr Semonovich Smolin
Keyword(s):  
Surface Roughness ◽  
Fiber Length ◽  
Ash Content ◽  
Main Flow ◽  
Morphological Properties ◽  
Combined Method ◽  
The World ◽  
Before And After ◽  
Breaking Length

Article is devoted to a research of morphological properties of the fibers produced from recovered paper by dry defibration method. Fiber length, roughness, torsion, curvature, fibrillation, fines, etc. properties of the fibers produced by the traditional conventional and dry defibration method are compared. Filler (chalk) losses are estimated by recovered paper preparation in the dry defibration method. The studied morphological properties of fibers and content of chalk define surface (roughness, thickness, whiteness) and mechanical (bursting strength, breaking length) test-liner cardboard indicators with a white surface layer. Determination of morphological properties of recovered paper stock fibers allows recommending a combined method of recovered paper preparation (including dry defibration) for test-liner cardboard manufacturers in our country and in the world. Changes of ash content data before and after dry defibration of fibers determine losses of chalk filler. It is known that content of chalk affects mechanical and surface properties of cardboard. Preliminary results of calculations of energy saving from implementation of dry method, carried out during industrial production, showed that at addition of fibers (25% of total weight of fibers in cardboard) prepared by dry method to the main flow, with preservation of mechanical indices of produced cardboard, up to 50 kWh/t of energy is saved.

scholarly journals Determination of fiber length in axially symmetrical metal matrix composites

2008 ◽  
Vol 68 (3-4) ◽  
pp. 625-630
Author(s):  
Alberto Borrego ◽  
Joaquín Ibáñez ◽  
Gaspar González-Doncel
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Fiber Length ◽  
Matrix Composites

A New Theory for the Debonding of Discontinuous Fibers in an Elastic Matrix

1989 ◽  
Vol 170 ◽  
Author(s):  
Christopher K. Y. Leung ◽  
Victor C. Li
Keyword(s):  
Fiber Length ◽  
Fiber Volume Fraction ◽  
Volume Fraction ◽  
Interfacial Strength ◽  
Fiber Composites ◽  
Short Fiber ◽  
Fiber Volume ◽  
Physical Reason ◽  
Pull Out

AbstractThe mechanical properties of fiber composites are strongly influenced by the debonding of fibers. When an embedded fiber is loaded from one end, debonding can occur at both the loaded end and the embedded end. Existing theories neglect the possibility of debonding from the embedded end and are thus limited in applications to cases with low fiber volume fraction, low fiber modulus, high interfacial strength/interfacial friction ratio or short fiber length. A new twoway fiber debonding theory, which can extend the validity of one-way debonding theories to all general cases, has recently been developed. In this paper, the physical reason for the occurrence of two-way debonding is discussed. The limit of validity for one-way debonding theories is considered. One-way and two-way debonding theories are then compared with respect to the prediction of composite behaviour. The determination of interfacial parameters from the fiber pull-out test will also be described.

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