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Rashid K. Abu Al-Rub's picture

IMECE 2015 Symposium on “Architectured Multifunctional Materials and Composites”

It is our pleasure to invite you to submit an abstract to the symposium on

Architectured Multifunctional Materials and Composites

as part of Track 12 of IMECE 2015, Houston, Texas, November 13-19, 2015. See attached for more details.

The abstract submission deadline is March 2nd, 2015 (final deadline, no extension).


Rashid K. Abu Al-Rub, Masdar Institute, Abu Dhabi, UAE

Vikas Tomar, Purdu University

Philippe H. Geubelle, University of Illinois at Urbana-Champaign

Compressor Operator B 30.67 hour

About Us

Dominion is one of the nation's largest producers and transporters of energy, with a portfolio of approximately 27,500 megawatts of electric generation, 11,000 miles of natural gas transmission, gathering and storage pipeline and 63,200 miles of electric transmission and distribution lines. The company operates one of the largest natural gas storage systems in the U.S. with 947 billion cubic feet of capacity, and serves nearly 6 million utility and retail energy customers in 10 states.

creating zero thickness cohesive elements using tetra mesh

Hello everyone,

I am working on crack simualtion by creating zero thickness cohesive elements by editing the nodal co-ordinate in ABAQUS. I am able to simualte it on some of the components using hexa mesh , but for complex components it should be meshed with tetra mesh so,   my question is , is it  possible to create zero thickness elements using tetra mesh in ABAQUS? If it is then please guide me  through this problem.

Thank You.

D.Rittel's picture

Dynamic necking can avoid notches

Following an earlier post on dynamic necking of tensile bars, we show in the attached paper (to appear in JMPS) that the presence of deep notches in the specimen does not necessarily dictate the location of the neck. Various material parameters are identified and modeled numerically, to assess their respective influence. Strain-rate sensitivity is identified as an important factor. Stated simply, given the fact that local strain rates in a notch are significantly higher than in the rest of the bar, the notch will harden to an extent that it transfers the load elsewhere in the specimen. 

D.Rittel's picture

Surface preparation of dental implants

It is commonly admitted that "rough" surfaces promote osseo-integration of dental implants. Numerous studies emphasize an optimal Ra parameter for this purpose. One very common way to achieve that state is the so-called "grit blasting" process whereby tiny ceramic (alumina) particles are shot on the implant's surface.

Up to here for the basic story.

It has also been noted in other instances that surface blasting may not be entirely beneficial and it should be controlled, in terms of blasting pressure, particle size and shape. 

D.Rittel's picture

Dental implants can fail......

Contrary to the common naive feeling of clinical dentists, it so happens that dental implants can also fracture. This is a very unpleasant event which necessitates a surgical extraction procedure. So far, the most part of reserach on dental implants has been emphasizing biological failures and biocompatibility related issues. Mechanical aspects of implant design have been touched upon and a lot of work has been done on the surface condition of the implants to allow optimal osseo-integration. Those are all central clinical issues.

Abaqus tools

<p>Hi all</p>
<p>im modeling an laminated rubber isolator in abaqus and i have used mooney rivlin model.My model consists of three layers of rubber and steel plates in between.&nbsp; I dont know how to view the results for seperate parts of rubber and also how to adjust the contour plot valuees. kindly help me with it. thanks in advance.<a href=""><br /></a></p>

D.Rittel's picture

Experiments with porous materials

The additive manufacturing technology, among its many advantages, allows us to manufacture solids with controlled enclosed porosity. To the best of my knowledge, this was not doable with conventional machining technologies, but now this is done. In the attached document, the interested reader will find experimental results (both static and dynamic) describing the influence of the porosity on the specimen's performance. We show that while the volume fraction is indeed an important parameter, aas expected, the spatial arrangement of the voids is also of prime importance.

Running user subroutines in Fortran 90 with ABAQUS


I need to run a UEL in Fortran90 with ABAQUS 6.13, however, I keep getting error. 

I can run subroutines in FORTRAN77, but it's not the case for Fortran90.

My machine is Windows7/64 and I have Intle Composer XE 2011 and Microsoft Visual Studio 2010.

Any help on that would be greatly appreciated.



Avinash Dongare's picture

ASME 2015 IMECE Mini-Symposium on "Genomics and Informatics for Mesoscale Mechanics of Materials"

I am writing on behalf of my co-organizers Alexey Volkov (University of Alabama) and Peter Chung (University of Maryland) to draw your kind attention to a special Symposium titled “Genomics and Informatics for Mesoscale Mechanics of Materials” at the ASME 2015 IMECE Meeting in Houston from November 13-19, 2015.  Please consider submitting an abstract to this symposium.  The scope of the symposium is aligned with interest in MGI and mesosca

Hamed Hatami's picture

Mini-symposium on Mechanics of Fibrous Materials at USNCCM-13, San Diego July 2015

I would like to bring to your attention the mini-symposium entitled "Mechanical Properties of Randomly Cross-Linked Semiflexible Fibrous Materials”,

ageing viscoelastic

Hello everone

I am recently interested in viscoelastic composite materials with ageing effect. I will be very pleased if someone can advise me how to find a constitutive law with ageing effect. 



Rashid K. Abu Al-Rub's picture

IMECE 2015 Symposium on “Mechanics of Hydraulic Fracturing (fracking)”

It is our pleasure to invite you to submit an abstract to the symposium on

Mechanics of Hydraulic Fracturing (fracking)

as part of Track 12 of IMECE 2015, Houston, Texas, November 13-19, 2015. See attached for more details.

The abstract submission deadline is March 2nd, 2015 (final deadline, no extension).


Rashid K. Abu Al-Rub, Masdar Institute, Abu Dhabi, UAE

K. Ravi-Chandar, University of Texas-Austin

Chad M. Landis, University of Texas-Austin

Ali Ghahremaninizhad, University of Miami

IMECE 2015: Student Travel Awards and Best Paper Contest

Dear IMECE Attendees:

The Applied Mechanics Executive Committee (AMD-EC) is pleased to announce the 2015 IMECE student travel award and best paper competition.

Hamed Hatami's picture

PhD Positions – Computational Mechanics

PhD Positions in the area of computational mechanics are available at the computational biomechanical laboratory in the School of Mechanical and Aerospace Engineering at Oklahoma State University.

The candidates are required to have a MSc. degree in Mechanical Engineering or in a closely related field.

Only Candidates with strong background in numerical simulations, finite element analysis, and computational solid mechanics are encouraged to apply.

On the modeling of asymmetric yield functions

In the context of metal plasticity, the yield function of a metal polycrystal is its most complex macro-characteristic. Letting aside the questions of kinematic or distortional hardening, the basic problem is geometric in nature: to design a family of convex surfaces capable of reproducing a wide range of experimental, or theoretically predicted data. While many satisfactory solutions have been proposed for the modeling of symmetric (with respect to the origin of the stress space) yield functions, the more general case of asymmetric functions has not witnessed comparable progress.

Siva P V Nadimpalli's picture

IMECE 2015 Symposium on "Mechanics of Deformation and Failure of Energy Materials"

Dear Colleagues,

We invite you to submit an abstract to the symposium titled “Mechanics of Deformation and Failure of Energy Materials” at the IMECE 2015Houston, Texas, November 13-19, 2015. 

Michael Ortiz will receive the 2015 Timoshenko Medal

Michael Ortiz will receive the 2015 Timoshenko Medal.  He will give the speech of acceptance at the Annual Applied Mechanics Banquet, on Tuesday, 17 November 2015, in Houston, at the ASME International Mechanical Engineering Congress & Exposition.  

Come to the Congress to congratulate Professor Michael Ortiz in person.  

PhD Position

PhD Position in the Department of Mechanical Engineering at Rowan University

Fan Yang's picture

Is energy conservation satisfied in the current deformation application schemes in molecular dynamic simulations?

In our recent paper, we examined the energy conservation for the current schemes of applying active deformation in molecular dynamics (MD) simulations. Specifically, two methods are examined. One is scaling the dimension of the simulation box and the atom positions via an affine transformation, suitable for the periodic system. The other is moving the rigid walls that interact with the atoms in the system, suitable for the non-periodic system.

analysis Composite at Abaqus

Hi every one

I try to analysis my Model at Abaqus. I want to use continume shell model to create the composite layer. The model shape is so complex and I can not use Hex meshing. Abaqus just meshing the model as Tetra element. And my problem is abaqus do not accept tetra az composite layer at element type. I try to daturm the model very smal part until may be can define hex element but its not work. There is any way I can use tetra meshing for continume shell.  


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