Accelerated Life Testing (ALT Video-1)

We are happy to release our 30th video on Accelerated Life Testing (ALT). This is our first video on ALT in a series of videos on this important topic in reliability engineering. In this video, Hemant Urdhwareshe has introduced basic concepts of ALT.
In our subsequent videos on ALT, we will do a more detailed discussion on mathematical treatment, selection of appropriate model and statistical distribution. We will explain these with application example on Minitab software.
Hemant is a Fellow of ASQ and is ASQ CRE, CMBB, CSSBB, CQE and CMQ/OE. We are sure that viewers will find it useful. If you like the video, do not forget to click the lie button. If you want to watch more of our videos, please subscribe to our channel and click on the bell icon.

[@kamyarghods2429]

good initial insight about the accelerating methods

[@instituteofqualityandrelia7902]

Thank you!🙏

[@wahyuwibowo3888]

Many thanks for the upload ... very helpful

[@instituteofqualityandrelia7902]

Glad it was helpful! Appreciate your feedback.

[@TheSanthoshteja]

Thank you sir for video on ALT, request you to do on HASS & HALT aswell.

[@instituteofqualityandrelia7902]

Noted

[@vishnusworldofmusic3770]

Well explained. I think the sound level could be increased. Also may be few examples on how to analyze the test results will help. Thanks for sharing.

[@instituteofqualityandrelia7902]

Thanks Vivek. The level is decided considering all viewers. Also, consider that this is the first video in the series of ALT. I have mentioned in the video about examples in forthcoming videos.

[@ashishshrivastava8864]

7:27 why the stress vs time graph is shown as linear? Everywhere else log scale of stress and time was linear. Specific reason? Equation AF = to/ts is valid for any relation between stress and time linear or power law.

[@onlytruth9321]

Excellent video!!! I have enjoyed a lot because of clear cut explanations!!! Can you suggest me any book for reading please? I am 17 yo and your video inspired me a lot to work in the field of reliability analysis

[@instituteofqualityandrelia7902]

Thank you! ALT Book by Brian Dodson could be a good choice!

[@balajisathasivam1043]

Thank you very much Sir. Clear explanation. I am trying to develop a ALT model on power cord cable/wires. The working mode is mainly flexing of cable and understand when the continuity breaks or the insulation fractures. Can you advise me if there is any model already exist for this application ? Thank you

[@instituteofqualityandrelia7902]

If the failure mode is mechanical flexing, perhaps power law or inver power law may work. If this is related to temperature, Arrhenius or Eyring model would be appropriate. Try to find out which one fits your data.

[@Stormdaklak]

great explanation Thank you

[@instituteofqualityandrelia7902]

Glad it was helpful!

[@arijitghosh5650]

What is qualitative and quantitative alt

[@instituteofqualityandrelia7902]

In qualitative ALT, no predictions are made or possible. In quantitative ALT, our objective is to predict reliability at normal operating conditions, but testing is done at elevated stress levels.