Can I revise and use a part of my published paper in PhD dissertation?
If these published papers were part of your dissertation research, I don't see how there would be an issue. For example, at my University we were expected to submit and publish three papers for our dissertation. We then wrapped those papers into a single document, added an introduction chapter and conclusion chapter. My dissertation document was then published on the university website.
In my case I made sure that I did not use the publisher formatted final version of the papers. With the publishers I used, permission was not required for including in a thesis or dissertation. For example, I published some of my papers in IEEE journals. IEEE has a button on their site for each paper that you can click to get copyright permissions. It has a drop down that says &quot;thesis/dissertation&quot;. All that they require if you are the first author is to include a copyright message to IEEE in your dissertation. Of course, the practice may be different in other journals, as the licenses will vary too.
I also made the choice to only publish my dissertation in the university's open access library repository as required by the university, and not in proquest's subscription repository of dissertations as that could result in monetization of another publisher's work.
In this example I gave, self-plagiarism does not apply because 1) you would be sure to acknowledge at each chapter's beginning that this is an already-published work, 2) the dissertation is a university requirement for graduation. Nowadays, many people are publishing their chapters separately and you are required to collate them into a single document for graduation. It wouldn't make sense to me to have to write an entirely new document to report the same findings in a more wordier manner. That would be a waste of time.