Why Pi is used in fracture mechanics?

01 January 1970 1 754 Report

I see a lot of equations work very well without Pi then it is needed to use Pi in fracture machines.

Pi (π) is not specifically used in fracture mechanics equations as a fundamental constant like it is in geometry or trigonometry. However, it may appear in some fracture mechanics equations due to the inherent geometry and mathematics involved in describing cracks and crack growth.

Badges
Science topic

Similar topics
Phytochemistry
Extracts

More Aqsa Qambrani's questions See All

Iam trying to check floiurescence in bacteria, but iam failed?

I am working on E.coli bacteria after growing bacteria in LB I centrifuge it at 7000 then resuspend it and add 2 ml deionized sterile water and 19 microliters gold. In the confocal machine, there...

14 November 2019 2,774 3 View

Cell lines to evaluate cytotoxicity of drug?

Hi Everyone, I am working on some drugs for HSV. I am wondering what are the best heart, liver and kidney cells lines to evaluate cytotoxicity of my drug on heart, liver and kidney...

17 June 2019 7,591 2 View

Hi , I wanted to collect exosomes from cell culture media through ultracentrifugation.but i couldn't see pallet. Why?

I collected media in two bottles and centrifuge for 800g RCF for 10 minutes . i couldn't see any pallet , then i went for 2000g for 20 minutes still nothing what should be the possible reason?

27 December 2018 5,642 3 View

I want to collect blood of normal mouse after treating it with Ag to check drug uptake, What is best way to collect blood?

doing animal model, for cancer related research

19 December 2018 2,428 3 View

My pure anabaen sample is contaminated with chlorella vulgaris. How to get rid of chlorella and keep anabaen pure?

I am facing problem regarding purification of anabaena. i have used serial dilution and plate streaking method. But everytime the culture is contaminated with chlorella vulgaris. I have to perform...

12 November 2018 7,869 3 View

I fabricated GNP by reduction of sodium citrate but its colour is not bright red ,, what might be the reason ?

Fabrication of GNP

28 May 2018 9,702 1 View

How wind speed is mathematically related wind power???

23 February 2018 1,959 5 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

No streamlines present in a small region inside a flow. This means exactly what?

No streamlines present means whether the flow is getting obstructed there and the velocity inside the region is zero? Or else, the fluid is trapped inside that region with a nonzero velocity?...

22 February 2021 5,249 10 View

The most suitable method to calculate the stress intensity factor in the presence of contact between the crack lips?

I'm trying to study cracked structures under a compressive load taking into account contact between the crack lips. I would like to know if the method of extrapolation by displacement remains...

21 February 2021 8,694 4 View

Can anyone help with an Accurate Diffuser Expansion Loss formula for rectangular shaped diffusers in turbulent flow regime?

I have tried Idelchik's Handbook of Hydraulic Resistance 4th Edition (2007 page 300) formulas and across some range the formulas are reported valid for, the law of conservation of energy is...

20 February 2021 2,504 1 View

How to visualize stress in a coating defined by "Skin" in Abaqus?

Hello All! I'm trying to model a contact between a coated substrate and a tip in Abaqus. The coating is ultra-thin compared to the geometry of the substrate. So I defined the coating using the...

16 February 2021 1,594 3 View

How can I find the thermophysical properties of high temperature microencapsulated phase change materials (MPCM)?

Hi everyone. I am looking for a high temperature MPCM. More specifically, I need the thermo physical properties of a microencapsulated phase change material with the melting temperature between...

14 February 2021 3,606 2 View