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ductility of carbon nanotube reinforced composites.

Submitted by dkgajjar on
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HELLO,

I want to know if carbon nanotubes reinforced composites are ductile as I want to do hydroforming process by using ABAQUS or any other metal forming process that can be implemented.

If it is formable than what are values of yeild strength, ultimate tensile strength, plastic strain,etc.

the matrix material is polymer(PmPV).

THANK YOU.

PhD in Mechanical Engineering at United States/United Kingdom/Canada

Submitted by prasadmsvs on

Im a final year student in Dual Degree(B.Tech in Mechanical Engineering and M.Tech in Intelligent Manufacturing). I want to procure PhD in manufacturing stream. Your suggestions on universities and areas of research are very valuable to me.

How to model fastener with same force-displacement behavior for all translational directions in a plane in Abaqus?

Submitted by huyhung on
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<p>Hi everyone. I want to model the fasteners connecting a wood sheathing to a steel frame in Abaqus. I want to input the same force-displacement behavior for all translational directions in the plane of the sheathing (like a radial spring). <br /> <br /> I was using spring element type Spring2 (nonlinear) but I could define behavior in only 2 translational directions in the sheathing plane (X and Z). This made my model overly stiff after the elastic range. I read about the RADIAL-THRUST connector element but it does not seem to be the one.

How to model fastener with same force-displacement behavior for all translational directions in a plane in Abaqus?

Submitted by huyhung on

<p>Hi everyone. I want to model the fasteners connecting a wood sheathing to a steel frame in Abaqus. I want to input the same force-displacement behavior for all translational directions in the plane of the sheathing (like a radial spring). <br /> <br /> I was using spring element type Spring2 (nonlinear) but I could define behavior in only 2 translational directions in the sheathing plane (X and Z). This made my model overly stiff after the elastic range. I read about the RADIAL-THRUST connector element but it does not seem to be the one.

Contribution to dynamic behaviour of structures

Submitted by Adjal on

Most of topics here in this web site treat the physical behaviour of materials, I would like to share my knowledge and my ideas concerned the analysis vibration of materials ( forced and free) for understand the mechanical behaviour of structures

I adress this message to  researcher whom interssting on dynamic of  structures 

Split Hopkinson Pressure Bar

Submitted by ADevs on
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Hello I am an undergraduate researcher working with a Split Hopkinson Pressure Bar and I'm new to this site. We recently changed from a set of 3/4" aluminum bars to a set of 1/2" aluminum bars and an interesting result occured. Our data collection system consists of a pair of strain gages midway along each bar.

Numerical analysis of quasi-static fracture in functionally graded materials

Submitted by Emilio Martíne… on

This work investigates the existing capabilities and limitations in numerical modeling of fracture problems in functionally graded materials (FGMs) by means of the well-known finite element code ABAQUS. Quasi-static crack initiation and growth in planar FGMs is evaluated. Computational results of fracture parameters are compared to experimental results and good agreement is obtained. The importance of the numerical fit of the elastic properties in the FE model is analyzed in depth by means of a sensitivity study and a novel method is presented.

Composite Manufacturing Process Modeling Using Poromechanics

Submitted by Mohammad Rouhi on

Modeling and simulation of manufacturing of advanced composite material is a must in today's industry as the use of advance composites is increasing dramatically. The aim is to reduce the number of trial and error by development of a simulation tool to model and predict the manufacturing fundamental phenomena happening simultaneously in different scales. Poromechanics is a multidisciplinary and multiphysics concept which can be used to achieve this goal.