What is the primary physical reason that the components in a fragmented satellite appear as a 'string of pearls'?

Answer

Structural integrity is lost, and individual components ablate at slightly different rates.

This effect results from structural integrity loss, where individual components heat up and ablate at slightly different rates based on variations in their mass, shape, and angle of attack.

What is the primary physical reason that the components in a fragmented satellite appear as a 'string of pearls'?

#Videos

What Happens If SpaceX Starlink Satellites Start Colliding - YouTube

SpacesatellitesdeorbitStarlinkre-entry