Pulse detonation tube with local flexural wave modifying feature

In one embodiment, a pulse detonation tube (10) includes a continuous base tube (12) having a substantially uniform wall thickness (56). The pulse detonation tube (10) also includes a local flexural wave modifying feature configured to locally vary a flexural wave speed such that the flexural wave speed through the pulse detonation tube (10) is different than an expected detonation wave speed, and/or to locally dissipate flexural wave energy.