Dr Jonathan Kemp has created a new video on the physics of guitar and bass strings explaining the importance of engineering strain on sensitivity to pitch bends (including how this can be controlled for wound string designs) and explaining why he designs lumped bass guitar strings. https://youtu.be/LYuoeUqSUR0
References
Quantitative Analysis of the Musicality of an Electric Guitar Tremolo by Jeremy Ozer (2008) Carnegie Mellon University
https://wiki.ece.cmu.edu/ddl/index.php/Quantitative_Analysis_of_the_Musicality_of_an_Electric_Guitar_Tremolo
String Theory – The Physics of String-Bending and Other Electric Guitar Techniques by David R. Grimes (2014) PLOS
https://doi.org/10.1371/journal.pone.0102088
The physics of unwound and wound strings on the electric guitar applied to the pitch intervals produced by tremolo/vibrato arm systems by Jonathan A. Kemp (2017) PLOS
https://doi.org/10.1371/journal.pone.0184803
On inharmonicity in bass guitar strings with application to tapered and lumped constructions by Jonathan A. Kemp (2020) SN Applied Sciences
https://doi.org/10.1007/s42452-020-2391-2