Implementing 'design for demise' forces engineers to rethink everything. Most satellite structures rely on high-melting-point materials like titanium or stainless steel to ensure durability. These metals survive reentry, which is bad for debris mitigation. To ensure a satellite burns up, designers must switch to aluminum or specialized composites. This trade-off creates a technical headache: making a craft light enough to launch cheaply but structurally sound enough to survive launch vibrations and thermal stress. Finding that balance takes time and expensive testing.
Economically, this approach hits the bottom line of commercial mega-constellations. Building thousands of satellites requires mass production. If every unit needs custom, low-melting-point components, costs spike. You lose the economies of scale that make large constellations viable. Furthermore, companies face higher insurance premiums. Insurers see these experimental designs as a risk because they lack decades of flight data. If a satellite fails to burn up as predicted, the company faces massive liability. Ultimately, forcing satellites to die quickly means paying more for materials, longer development cycles, and more expensive risk management.
