A Surface Stacking Fault Energy Approach to Predicting Defect Nucleation in Surface-Dominated Nanostructures
Recently accepted for publication in JMPS:
http://www.sciencedirect.com/science/article/pii/S0022509613000884
research
Crack thickness
Macroscopic
cracks do not appear as a result of an ideal separation of two adjacent atomic
layers. Just the opposite, cracks appear as a result of the development of
multiple micro-cracks triggered by the massive breakage of atomic bonds. The microcracking
and the bond breakage are not confined to two neighbor atomic planes: the
process involves thousands atomic planes within the representative characteristic
volume of size h. This size defines the width (not the lenth) of the damage
localization zone and it can be called the crack thickness. The knowledge of
Theoretical and numerical study of lamellar eutectoid growth influenced by volume diffusion
Published in Acta Materialia (June, 2013):
URL: http://www.sciencedirect.com/science/article/pii/S1359645413002607
Can anyone suggest a lab for me to manufacture CNT reinforced ceramic composites
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Dear colleagues,
I'm a graduate student from University of Pittsburgh. I want to make a CNT reinforced ceramic composites (woven structure), but cannot find people to make it for us. Can anyone introduce me any labs or company who can help me? Thanks!
Monica
Determining Young' Modulus of Hybrid Composite
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Dear Engineers,
I am Master degree student and I am trying to determine Young's Modulus of Hybrid Composite.
Since I don't have any material properties in detail of each part of mentioned composite, I chose an experimental method which is Tensile test with MTS machine to determine Young's Modulus.The major problem which I have faced in this procedure is that due to the limitation on my sample, I can just prepare specimen for determining transverse Young's Modulus in accordance ASTM standard for geometrical dimensions.
Hybrid Composite Tensile Test
Dear Engineers.
I am Master degree student and I am trying to determine Young's Modulus of Hybrid Composite. Since I Don't have any material properties in detail of each part of mentiond composite, I chose an experimental tensile test with MTS machine to attain at Least Young's Modulus. The major problem which I have faced is that due to limitation on my sample, i can just prepare specimen for transverse tensile test based on ASTM standard which recommend geometrical dimensions for specimen.
Lattice Modeling of Chloride Diffusion in Sound and Cracked Concrete
Our paper titled "Lattice modeling of chloride diffusion in sound and cracked concrete" has been accepted for publication by Cement and Concrete Composites journal. It deals with numerical modeling of chloride transport coupled with fracture. Registered subscribers can download the paper at http://www.sciencedirect.com/science/article/pii/S0958946513000899 .
Zanaboni Theory and Saint-Venant's Principle: Updated
Zanaboni Theory is mathematically analyzed in this paper. The conclusion is that Zanaboni Theorem is invalid and not a proof of Saint-Venant's Principle; Discrete Zanaboni Theorem and Zanaboni's energy decay are inconsistent with Saint-Venant's decay; the inconsistency, discussed here, between Zanaboni Theory and Saint-Venant's Principle provides more proofs that Saint-Venant's Principle is not generally true.