Is there any experiences to share related to the compressibility of conglomerates soils?

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How to simulate numerically the collapse of geoetchnical structures?

In a real case story a tunnel collapsed. when simulating the problem by a numerical model using a 3D software Plaxis, at the stage of computation corresponding to the collapse, we noticed large...

10 November 2016 6,408 9 View

Publication's co-authoring Proposals?

We have good experimental results (odometer-shear box and triaxial) related to the behaviour of a variety of reconstituted soil (clay + gravel + sand) to various proportions. The initial objective...

10 November 2016 7,784 1 View

We would like to experiment boundary effects during a direct shear test to investigate the scale effect during shearing.

So we are thinking of designing a "full" scale box (big box) does anyone have an idea about this topic?

04 May 2013 1,674 0 View

The ultrasound technic is actually used in the prediction of the collapse of some metastases soil. What are the main limitations of this technic.?

Ultrasound could be used for investigating the collapse phenomena of some metastases soils. I am looking for any standardized procedures of testing. thanks.

01 January 1970 4,580 0 View

Artificial reconstitutded materials (sand and Kaolin), are they trully representative of the behaviour of some problematic soils (metastables)?

In such soils :the sand simulates the behaviour of the grains in soils, however the kaolin simulates the fine grains (clay) and though the cohesion.

01 January 1970 4,980 2 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View