All Questions
Tagged with mechanical-engineering materials
273
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I was solving fluctuating load problems and the word "static" confused me
Here's a snippet of the question that was asked a couple of years ago in university exam:
A cantilever beam made of cold rolled steel for which ultimate tensile strength =540 MPa and Yield tensile ...
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Which aluminum alloy is used in cheap commercial load cells?
I am planning to simulate a load cell in CAD and was wondering which aluminum alloy are cheap commercial load cells made of? I noticed there is no huge difference between the common aluminum alloys in ...
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Mechanical fasteners for HDPE pipe and sheet?
I need to fasten pieces of HDPE together but I’ve heard gluing HDPE is difficult.
I've bought sheets and pipes to make a feeder for a tortoise.
I will be using the sheets for covers for the pipes.
The ...
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1
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DLC wear resistance
I read that a thickness of one micrometer of DLC coating (which, if I understood correctly, shows similar properties to diamond), increases the lifespan of an item plated with it from a week to more ...
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Grade C surface plate
Surface plates come in three grades: AA, A and B. The AA grade has the best flatness, while grades A and B have respectively 2 and 4 times less accuracy. Grade B is still much flatter than normal ...
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Optical table without holes
Most optical tables have holes. Are there also optical tables without holes? Or do these things have a different name?
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British Standard Steel BS5S82 propagation properties
I am looking for propagation data for the BS5S82 material (case hardened). I checked in MMPDS and ESDU but to no avail. does anyone know where I can find this data? Or at least similar materials in ...
- 1
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73
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What is fracture toughness and how is it different from the strength of a material?
Strength is just the amount of force that an object can take before breaking, so what is fracture toughness?
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What's the difference between ductility and stiffness?
As far as I understand they both relate to the amount of deformation based on a given amount of stress.
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Belt conveyor roller spring
I wanted to know if anyone could help in this area.
I want to create an inclined conveyor belt where, when a cargo box reaches the top of the conveyor belt, the rollers sequentially move down (maybe ...
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How to attach plates (my design) to the stator core of the machine more efficiently and precisely?
I am working on an electrical engineering project. However, I have come across a specific mechanical engineering problem. I have attached an image to describe what I want to do. I have primarily a ...
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Determine moment and shear stress door
Determine shear stress and moment of bolt:
Internal Height of Door = 198.2 cm
Internal Width of Door = 89.9 cm
Thickness Door = 3.9 cm
Weight Door = 45.76 kg or448.9 N
Elasticity = 9.8 GPa or N/mm2
...
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ASTM B209 does not list Aluminium Alloy 1070
This is my first post.
We manufacture products using various grades or alloys of Aluminium sheet, one of our common alloys is 1070. In referencing the ASTM B209/209M-21a standard I do not see 1070 ...
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Rotation of a tube
See image... why is it that in part 1 the answer is negative but in part 2 it is added instead of subtracted?
I thought because I got a negative in part 1 I would have to subtract in part 2 but the ...
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2
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Failing engine A-Mount (bad design by the automotive manufacturer?)
I currently own a Tata Nexon Petrol car (in India) where I have seen (on facebook, Telegram, WhatsApp owner groups and youtube) that the A-Mount on the engine has suffered multiple failures for some ...
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