Why the fabric strength in warp direction is better than weft direction?

During weaving, warp is the yarns that are being stressed to maintain the tension, there will definitely have residual stress in the yarns that are in the warp direction. This eventually results...

02 March 2018 7,597 1 View

What tenses should be used in the research paper and thesis? The most concern part is the literature review.

Chapter 1 is the introduction, so combination of present and past tense should be used. However, Chapter 2 is the literature review, should it be the past tense since they are those previous works...

07 August 2017 4,092 3 View

Dear all, what is the difference between delamination and debonding in composite materials? Are they the same?

The definition of these two words are similar, which is the separation of two materials. Thank you.

02 March 2017 4,397 5 View

Can Rule-of-Mixture be applied to composite structure with different fibre orientation?

When we calculate the strength of composite using rule of mixture, fibre orientation is not taken into account, so is it a good method to obtain the properties of the composite?

09 October 2016 4,812 5 View

What is the difference between toughness and ductility of a material?

From my understanding, both of them refer to the ability to plastically deform without failure. Can any expert explain to me? Thank you very much

08 September 2016 2,750 95 View

Dear experts, can I know is there any method to differentiate the type of natural fibre? eg: flax fibre or hemp fibre ?

The structure of every natural fibre is similar. So, is there any experimental method or physical observation that can differentiate the type of fibre. Thank you very much.

07 August 2016 3,220 4 View

Good morning, dear experts. Can I know does material with high density exhibits high mechanical strength also?

relationship between density and mechanical strength especially fatigue strength. Thank you

05 June 2016 2,297 3 View

Good day everyone, I would like to ask whether composite with 45 degree fibre orientation has better fatigue life cycle compared to 90 degree?

03 April 2016 1,528 5 View

Good day everybody, can I know what is the minimum point required in S-N curve for metallic material? Thank you

I'm confusing whether 6 points are sufficient for S-N curve.

01 February 2016 1,390 14 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

Which is the most efficient etching solution for nickel based alloys?

Which solution reveals the microstructure and features of nickel-based alloys?

02 March 2021 2,221 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

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 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