The cause of the disaster was the failure of the primary and secondary O-ring seals in a joint in the right Space Shuttle Solid Rocket Booster (SRB). The record-low temperatures on the morning of the launch had stiffened the rubber O-rings, reducing their ability to seal the joints.

The Space Shuttle Solid Rocket Booster (SRB) was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight. [1] A pair of them provided 85% of the Space Shuttle's thrust at liftoff and for the first two minutes of ascent.

When the burn through of the primary nozzle O-ring on the left Solid Rocket Booster of STS 51-B was discovered in Utah on dune 25, 1985, an engineer from the NASA headquarters Shuttle Propulsion Group was on the scene.

The External Tank/Solid Rocket Booster attach strut loads had a negligible affect on the ability of the O-ring to track the simulated SRB field joint deflection.

The resiliency of the O-ring was found to be extremely sensitive to the effects of temperature. The External Tank/Solid Rocket Booster attach strut loads had a negligible affect on the ability of the O-ring to track the simulated SRB field joint deflection.

Solid Rocket Booster. The Solid Rocket Booster comprises seven subsystems: structures, thrust vector control, range safety, separation, electrical and instrumentation, recovery, and the Solid Rocket Motor.

Aug 1, 1991 · Brief report proposes to modify placement of O-ring seals in joints of Solid Rocket Booster of Space Shuttle. Modified joint and seal essentially "inside-out" version of old joint and seal. O-rings placed between outer side of tang and clevis.

A solid rocket booster (SRB) is a solid propellant motor used to provide thrust in spacecraft launches from initial launch through the first ascent. ... Failure of an O-ring seal on the Challenger space shuttle's right solid rocket booster led to its disintegration shortly after liftoff.

Escaping gases were seen from lowest Solid Rocket Booster (SRB) joint at liftoff. O-ring resealed during ascent. Vibrations and crosswinds caused a catastrophic loss of sealing. SRB support structure failed, leading to tank rupture, vehicle loss, and loss of all 7 crew members at 73 seconds into flight.

Oct 7, 2014 · Engineers believe that the accident which led to subversion of Challenger space shuttle happened by link breaking in the right side of solid fuel rocket engine. The failure of the O-rings of solid rocket boosters (SRB) makes the gases to leak and blasting is shown in Figure 2.