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Title: Elastomer explosive decompression modelling
Author: Edmond, Keith Stuart
ISNI:       0000 0001 3438 301X
Awarding Body: Cranfield University
Current Institution: Cranfield University
Date of Award: 2003
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The fatigue characteristics oftwo 'explosive decompression resistant' materials have been determined and used to predict the materials performance when subjected to multiple decompressions. Explosive decompression failure can cause blistering and cracking of an elastomer seal, potentially causing leakage, which can have significant financial and environmental implications for the company involved. This research has developed a finite element model, which analyses the onset ofdamage in O-rings subjected to decorppression cycling. The model can be used to estimate the number of cycles to failure for O-rings housed in several groov~ designs and s~jected to a range of temperatures and pressures. Through analysis of seals subjected to multiple decompressions, fatigue was identified as a major damage mechanism. Fatigue rings were clearly visible on the fracture surfaces of damaged seals.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available