How did NASA fix the O ring problem?
How did NASA fix the O ring problem?
During the Challenger liftoff, one of the main O-rings between sections of the rocket failed, allowing hot gas to escape and cause an explosion in which the crew perished. After the disaster, the joints were redesigned with an extra piece of metal inside to hold the sections together.
Why did the Challenger explode Richard Feynman?
When this happened, the fuel tank released liquid hydrogen into the atmosphere where it exploded. As Feynman explained, because the O-rings cannot expand in 32 degree weather, the gas finds gaps in the joints, which led to the explosion of the booster and then the shuttle itself.
Who was held responsible for the Challenger disaster?
Roger Boisjoly
| Roger Boisjoly | |
|---|---|
| Known for | Attempts to prevent the Challenger disaster |
| Awards | AAAS Award for Scientific Freedom and Responsibility (1988) |
| Scientific career | |
| Fields | Mechanical Engineering |
Why did the O ring fail?
The most common causes of O-Ring failures include: Improper gland design, allowing for too much or too little compression, not enough for seal expansion and tolerance stack-up. Incorrect O-Ring size. Incompatibility of O-Ring elastomer and environmental elements.
What happened to Morton Thiokol?
The Thiokol Chemical Company was founded in 1929….Thiokol.
| Industry | Aerospace, Manufacturing, Chemicals |
|---|---|
| Founded | December 5, 1929 |
| Defunct | 2007, succeeded by Orbital ATK; and later merged with Northrop Grumman |
| Fate | Purchased by ATK Launch Systems Group |
| Headquarters | Ogden, Utah, US |
How big was the O-ring that failed on the Challenger?
0.280 inches
This is the joint that failed on the Right Solid Rocket Booster. The joint is sealed by two rubber O-rings, with a diameter of 0.280 inches (+ 0.005, -0.003).
Why do you lubricate O-rings?
Lubricating an O-ring is an important part of the assembly line process as it can help protect an application from abrasion or scuffing damage. This barrier film can also help reduce leakage by filling the asperities between the metal surface and the O-ring seal.