All Questions
Tagged with material-science pressure
48
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Calculating tension in a pressurized container [closed]
Suppose I have a pressurized spherical container made of 1 mm thick aluminum. The container has pressure P and internal volume V. How would I calculate the tension in the aluminum?
The aim of this is ...
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Bulk modulus of metals at room temperature
Imagine a sample of solid metal at room temperature. It exhibits resistance to compression which is expressed as its bulk modulus. Part of this resistance originates from a treatment of the ...
- 95.5k
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Are there any materials known to be harder than diamond under high pressure as of April 2024?
This is a variation of this question where I asked if materials under high pressure can break standard pressure density records.
I am curious about materials that become superhard under very high ...
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What is a general definition of bulk modulus?
For a perfectly elastic body, Bulk modulus always remains constant and is defined as,
$$B=-V_i \frac{\Delta P}{\Delta V} \tag{1}$$
Which means,
$$B \left(\frac{V_f -V_i}{V_i}\right)= -(P_f-P_i)$$
But, ...
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What makes a book (or a stack of paper) so sturdy under pressure?
I've watched an experiment where they compress a book with a hydraulic press, and the book appears to stay relatively intact under that pressure. It is mentioned that the hydraulic press has a 100-ton ...
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Does the compressive strength of materials increase if they are placed under hydrostatic pressure?
Normal measurements of compressive strength work by compressing a sample with an hydraulic press and see when the sample deforms plastically or cracks.
Now if pressure is applied on the surfaces of ...
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When a cork is pulled out of a wine bottle, why does the inner end often expand more than the outer end?
When I pull a cork out of a wine bottle, it usually expands slightly in circumference. This makes sense: you want the cork to be slightly compressed relative to its natural diameter when it's inside ...
- 48.4k
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Confusion in Derivation of Excess Pressure in a Cylindrical Drop
I have recently learnt about surface tension and have developed a list of key points to solve problems:-
Surface tension acts on the surface where a surface is defined as the interface(flat or curved)...
user329235
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Could a nuclear bomb be used as a replacement for gunpowder in a giant cannon made out of diamond?
The question is obviously outlandish, but I'm curious about the napkin-math involved in estimating this. I don't know much material science and seems like an interesting exercise.
If I could carve a ...
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In terms of compressive stress $F/A$, what is the cross-sectional area of a sphere?
Any physics textbook chapter on stress-strain curves will generally mention that stress is force acting upon an area, and when a shape is three-dimensional, that area is the cross-sectional area. ...
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Finding the pressure difference inside a volume due to the expansion of its outer layer
FORNOTE: Hey all :) this is my first time posting and I apologise if I have written a block I wanted to be as precise with my question and reasoning as possible, also the question is summarised in the ...
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Why is Maximum Roll Pressure Not Always at the Plastic-Elastic Boundary?
In the rolling of steel, a sheet of steel is compressed plastically, so that it is thinner upon exit than at entry. This necessitates a change in velocity to maintain mass flow. As a result, certain ...
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What causes increment in volume when compressive forces are applied on an object
Doubt
When compressive forces are applied on a body, what causes increment in volume. According to me the volume should remain constant since the mass and density of body are constant.
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How to measure the displacement of a force over a sphere [closed]
I know it seems like a broad answer but since it is really straight forward to measure the displacement of a beam, how do you measure the displacement of a "steel" sphere when a force is placed over ...
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Can we reduce the stress on materials under vacuum with a gradient vaccum at different layers?
Suppose this example:
If I only apply a rule of $F = (P_1-P_2)A$ then every layer of the second box must resist less force right.
But I feel must be something wrong with this reasoning, ...
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