Creep is time-dependent plastic deformation. Like crack growth rate, the creep strain rate has three regions: primary, secondary (steady-state), and tertiary. Creep depends on constants, stress, activation energy, and temperature.
Пікірлер: 7
@captainvlog Жыл бұрын
Man, this is seriously a good class. I like how this guy's videos are clear and to the point.
@TaylorSparks Жыл бұрын
Thanks so much. Love this feedback
@sunleyaar2 жыл бұрын
Could you provide pdf of your lectures?
@user-gu8fo7ny1y2 жыл бұрын
I am a high school student looking to investigate the effect of stress on steady state creep rate. Would a graph of ln(strainrate) against ln(σ) produce a straight line with gradient n? And what would be the significance of the value of n in real life applications of creep? Would greatly appreciate a reply. Thanks
@hamzahshah3432 жыл бұрын
lmao get aired
@ShadowVsGaming1262 жыл бұрын
Thanks for the video! I'm still a little confused - why does a high temperature mean shorter creep? Is this because the heated atoms move very fast, causing the material to break faster than when they are cooled down?
@schoolwork12382 жыл бұрын
When you increase the temperature, you soften the material (Kinda like loosening the bonds between molecules). This causes the material to easily deform under a force (e.g., pulling a warm chocolate bar vs pulling a frozen one). Internally it looks like lines of molecules are slipping off like layers and the heat loosens the bonds between those layers. (Look up thermal softening if this doesn't make sense XD)