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
I lost the key socket, and had to change the tires over to winters as soon as possible, so I didn’t have time to order a replacement key. This method produces minimal damage to the nut itself, and once I do find the key, they will work like new again. I used a 3/4″ 12-point 1/2″Dr. socket for this demonstration. The socket does show some damage, but if you use the right size for your nuts, you should still be able be use the socket. You really shouldn’t be using 12-point sockets for normal use anyway; they tend to round off and strip nuts.
***This video is for demonstration purposes only, and the procedures depicted are not meant to be imitated under any circumstances for any reason. In no event will I be held responsible or liable in any way shape or form for your actions directly or indirectly relating to this video and its contents.
In other words; use only on your own tires or tires you have express permission from the owner of the car to take off.
Don’t steal!