All Questions
Tagged with mechanical-engineering solid-mechanics
111
questions
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Is it possible to achieve the same amount of stress for an equal amount of deformation but two different cross sections?
I have a small tube with outer diameter (OD) $R_1$ mm and inner diameter (ID) $r_1$ mm. The tube is bent using a moment $M_1$ to create an angle $\theta_1$ with its plane of origin. The stress can ...
- 187
0
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1
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254
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How does a single point load cell eliminate the inluence of moment/load placement
All descriptions I have been able to find mention some variation of "due to their geometrical design single point load cells are immune to load placement" with no explanation on how is it ...
1
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2
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1k
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Bending analysis of beams with varying cross section
All problems I solved in MoM class regarding beam bending involved a beam with continuous cross section. But is the process the same for a beam with varying cross section? For 'same process' I mean ...
- 15
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33
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Approaching/formulating a problem in solid mechanics
Consider a thin surface and hold it tightly and vertically at a point on its boundary. What it is the shape it assumes?
As a particular example let's take a circular plate clamped on a plane, as shown ...
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58
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How to model flexible plate between two sticks solidworks
I am following a paper on undulatory fin motion and trying to make a model of it in Solidworks.
The problem is stated as having two servo motors with two rays and a flexible rubber membrane between ...
0
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1
answer
68
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How holding force is produced in Jacobs taper for holding drill chucks?
How the wedge action produce significant holding force in a Jacobs taper for holding a twist drill chuck.
(Even just sliding the tapered plug inside the sleeve by hand makes a rigid connection that it'...
0
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1
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53
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Flexure formula insufficient for model
This is just a though experiment that I had.
Two hooks (the hooks are just extrusions of the sketches shown in the pictures below, with both hooks being extruded by the same amount).
If we use the ...
0
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2
answers
145
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What are the practical solutions to manufacturing this mechanical piece?
My Custom Piece (Measures are in mm)
I'm designing a custom mechanism that needs this piece to be able to function, but when i started thinking about how to manufacture it, I started getting confused ...
- 3
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1
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377
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Cauchy stress tensor vs Piola-Kirchoff stress tensors, when to use them?
I'm just reading about the P-K stress tensors, while I've seen Cauchy stress tensor in a course a couple months ago. From a technical point of view, I think it's clear what they represent.
Cauchy ...
- 101
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3
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1k
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how to determine the direction of support reactions in a truss?
Hi, I am not sure how to determine the direction of support reactions at point A and K. I know point A has a pin support, therefore, it can take in horizontal and vertical loads and point K has a ...
user38335
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Determining the angle theta at the Mohr's Circle
I'm having trouble about deciding the initial angle theta before drawing the Mohr's circle.
From what I've learned from the lecture, I need to draw a normal line of indicated plane and find the angle ...
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1
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70
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Ideal design for a long fruit plucking pole
I need to design a long (6-7m) pole for plucking fruits from tall trees.
The following are the requirements:
The pole material needs to be as light as possible.
The pole should not be flexible ...
- 3
-1
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2
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86
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Strain energy, Conservative force and Potential energy
What I know:
In general, the work done by a conservative force $F$ is equal to the negative change in a potential energy.
$$\int_1 ^2F.ds = - (U_2 - U_1) $$
A potential energy is always associated ...
- 859
32
votes
3
answers
8k
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Why are two wires used in railway overhead equipment?
While watching the train videos, I came across these overhead wires. After searching on the internet, I found that both catenary and contact wires carry the same voltage and are connected by vertical ...
- 463
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3
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134
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Work done by a force in a deformable body
Consider a deformable body that is acted upon by several forces at different points of application.
Under these forces, the body remains at rest but deforms and the particles have some displacement. ...
- 859