Machines | Tensile Test
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Basic principle and practical procedure of the tensile test on ductile metallic materials - Testing machine (Inspekt 200 kN, Hegewald & Peschke Meß- und Prüftechnik GmbH), specimen, extensometer - Material with yield point phenomenon - Elastic and plastic behaviour, uniform elongation, necking, fracture - Yield strength, tensile strength, percentage elongation at fracture - Material without yield point phenomenon - Plastic behaviour, proof strength Responsible for this video: Prof. Dr.-Ing. Rainer Schwab, Hochschule Karlsruhe (Karlsruhe University of Applied Sciences), Germany
Comments
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why dont they use a smaller specimen and thus a smaller machine?
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also shouldn't the piece snap back a bit after breaking?
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after yield point, the video said "the piece is strained uniformly ", what does that mean exactly? (2) since here we use force, but if we consider the stress, do we just take the original area? shouldn't the area decrease with extension?
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It is very useful to know the material
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watching this video to know the strength of my bmx bike ,which is made from 4130 chromolly steel
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What is the difference between these two process?
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This is extremely fascinating. I'm super motivated to finish my remaining education. Working two full time jobs for school has been very tiresome.
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can you do tensile strength at the through thickness direction acc to EN 10164 ?
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Very helpful, Thanks!
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I would like to know why there isn't any Necking in aluminum whereas there was Necking in steel. Anyone please?
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Cool machine!
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This is so cool, do you have a video with temperature instead of force aswell?
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it is very much useful
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thank you..very much
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Is anyone else watching these types of videos for their exams? I'M SO BORED
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whats the effect named @2:54
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thanks you very much for you effort .....I would like to ask you about young's modulus....does its value change after heat treatment for medium carbon steel or in other carbon steel ...and is that change is wide or not... ......because i had .. that changing when i did my research for aisi1030 with hardening, tempering,annealing,and normalizing ....thank you
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It appears that the yield point phenomena (YPP) is correlated to the mode of fracture. With YPP the fracture surface is perpendicular to the tensile axis, without YPP it is under 45° to the tensile axis. Can somebody please comment on that?
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envying ......... why my uni doesn't have any equipments..
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I have a test done for Shear Stud Dia 19mm length 106mm steel material as per ISO 898-1 where the : Yield strength as per standards is 385 min
Yield Strength @ 0.2% offset: 332.5 Mpa
Tensile Strength: 521 Mpa,
Elongation (in 50mm) 22.4%
Reduced area 58.5%
Can someone verify if these figures are correct?