Recent content by Civilian2
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How Can You Accurately Measure Strain in Steel Beams with Low Load Cells?
Interesting point. If a beam has been plasticly deformed at some stage in its life and then bent back and unloaded... Will elastic bending theory of the likes of f= my/I still work the next time it is loaded in what was its elastic range of load?- Civilian2
- Post #8
- Forum: Materials and Chemical Engineering
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How Can You Accurately Measure Strain in Steel Beams with Low Load Cells?
Thanks very much for the depth of your reply. It has helped me a lot in terms of my investigation and the right questions to dwell upon. Actually I am fairly close, I am about 8% out with one method - strain = my/EI where EI was calculated by measuring the deflection and from that obtaining...- Civilian2
- Post #6
- Forum: Materials and Chemical Engineering
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How Can You Accurately Measure Strain in Steel Beams with Low Load Cells?
thanks for the reply. Thats interesting, though I probably should have thought it would be along those lines. What factors then do you think would cause it to have a different strain reading than theoretically calculated results useing bending theory? Besides stress raisers and innacurate...- Civilian2
- Post #4
- Forum: Materials and Chemical Engineering
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How Can You Accurately Measure Strain in Steel Beams with Low Load Cells?
How does one work just out of interest? I use it when loading a steel beam to see the strain induced in the web of a chanel section. can't figure out how it would work- Civilian2
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- Beams Steel
- Replies: 10
- Forum: Materials and Chemical Engineering
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Moment Curvature Plot: Explaining the Significance of the Slope
Right, well I've figured it out. So for those of you who care... its actually an extremely simple connection... the hours I spent completely unwarranted. I in bending theory you find that Curvature, or, 1/r = M/EI where r is the radiius of curvature and M is the moment. The slope...- Civilian2
- Post #2
- Forum: General Engineering
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Moment Curvature Plot: Explaining the Significance of the Slope
Hi, I was really hoping someone could help me... I have a beam, simply supported and I place 2 point loads on it (equidistant from either end). I measure a range of deflections (of the beam) using gauges as I increase the loads (always having the same load at each point). I measure these...- Civilian2
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- Curvature Moment Plot
- Replies: 3
- Forum: General Engineering
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Closest Approach of 6 MeV Alpha Particle on Fe Nucleus
What is the closest distance of approach of a 6 MeV alpha particle colliding with a nucleus of iron (56 26 Fe)?- Civilian2
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- Physics
- Replies: 2
- Forum: Introductory Physics Homework Help
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Can I Use a 60 Watt Bulb in a "40 Watt Max" Fitting?
Thanks for your response. I'll simply go and buy some 40 Watt bulbs, lol.- Civilian2
- Post #4
- Forum: Electrical Engineering
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Can I Use a 60 Watt Bulb in a "40 Watt Max" Fitting?
Gday, This is a very simple question and it should only take one sentence to answer. It's not worthy of these forums, lol, but despite my efforts I cannot find an answer through google. If a light fitting says '40 watt max' and I stick a 60 watt bulb in it, will that have any adverse...- Civilian2
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- Bulb Fitting Max Watt
- Replies: 4
- Forum: Electrical Engineering
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High School What Would Happen if You Pointed a Camera at a TV Screen?
yeah I can see why that would happen if you positioned the camera at the WHOLE television ie the frame and the screen. But what if you positioned the camera at ONLY the screen...- Civilian2
- Post #3
- Forum: Other Physics Topics
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High School What Would Happen if You Pointed a Camera at a TV Screen?
This is probably painfully simple, and is not a 'brain teaser' as such but this seemed like the most suitable forum. My bro and I were having a discussion tonight and we stumbled across a problem that probably lead to more discussion than it is worth, but since we still can't come up with a...- Civilian2
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- Camera Screen
- Replies: 16
- Forum: Other Physics Topics
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Radar Detectors in Australia: Truth or Scare Tactic?
Cheers mate that's very informative.- Civilian2
- Post #8
- Forum: Computing and Technology
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Radar Detectors in Australia: Truth or Scare Tactic?
I was reading something today about it being stupid to own a radar detector in Australia because the police carry radar detector detectors with them. Is this even possible? I would have assumed that radar detectors don't send out a signal of sorts but only attempt to detect incoming radar...- Civilian2
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- Detectors Radar
- Replies: 7
- Forum: Computing and Technology
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Solving the Dilemma of Moving Water Without External Energy
Oh I see what you are getting at Bobg. My piston idea involved pistons entirely separate from the tanks, not turning the tank into a massive piston. I might find it difficult to get an airtight disc to fit the tank itself perfectly. But I like the idea. I've got a mate of mine calculating the...- Civilian2
- Post #45
- Forum: General Engineering
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Solving the Dilemma of Moving Water Without External Energy
Averagesupernova and Bobg: No I can't use a syphon unfortunately. Brewnog: Doing a better diagram is difficult because the forum only allows me to draw in a 400x400 canvas. The red arrows show the direction of the flow, the valves stop the water going back the other way- out of the system...- Civilian2
- Post #43
- Forum: General Engineering