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Determining Young' Modulus of Hybrid Composite

Submitted by Amin Khajeh on Fri, 05/24/2013 - 13:22

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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

Submitted by Amin Khajeh on Fri, 05/24/2013 - 12:17

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Dear Friends

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

Submitted by shavijabranko on Fri, 05/24/2013 - 07:24

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fracture

mechanics-transport coupling

concrete durability

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

Submitted by Jian-zhong Zhao on Fri, 05/24/2013 - 02:34

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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.

A variational approach to the fracture of brittle thin films subject to out-of-plane loading

Submitted by mesgarnejad on Thu, 05/23/2013 - 22:53

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Our new paper: "A variational approach to the fracture of brittle thin films subject to out-of-plane loading" has been accepted for publication in JMPS:

Abstract

UMAT Multi-element Issues

Submitted by nibalog on Thu, 05/23/2013 - 16:14

Hello All:

I have written a UMAT code to predict the viscoelastic behaviour within a shape adaptive structure. I have followed similar steps used in Abaqus subroutine manual, I have applied this UMAT to a single quad element and it works as predicted. But when I apply it multiple elements model it breaks down.

Is there any special command i need to put in UMAT subroutine to account multi element analysis? I will appreciate all related comments,

Thanks

Isogeometric Analysis (IGA)

Submitted by phunguyen on Thu, 05/23/2013 - 10:06

Anomalous plasticity in the cyclic torsion of micron scale metallic wires

Submitted by dabiao liu on Sat, 05/18/2013 - 14:59

Our new paper entitled "Anomalous
plasticity in the cyclic torsion of micron scale metallic wires" has been
accepted by PRL

(see: http://link.aps.org/doi/10.1103/PhysRevLett.110.244301)

ANSYS v13

Submitted by knaguib on Sat, 05/18/2013 - 07:16

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ANSYS v13

I need help in ANSYS 13 (Mechanical APDL interface), If anyone has an example or tutorial for modeling of reinforced concrete beam with discrete reinforcement using non-linear material definition, please provide on my E-mail: eng.karim.naguib [at] gmail.com (eng[dot]karim[dot]naguib[at]gmail[dot]com)