.... The incident took place at the beginning of a typical tank-filling operation when the hose contained cold gaseous oxygen. No injuries or damage to adjacent equipment occurred. Incident investigation and failure analysis of the hose are presented in this paper. The discussion covers a variety of factors...

... The failure analysis of an internally fire-damaged liquid oxygen (LOX) gate valve is presented. The fire event did not breach the pressure containment of the valve or associated piping. The exact timing of the fire event was not clearly discernable. The valve represented the primary isolation...

... framework and will provide guidelines for implementing a formal program that will allow manufacturers to realize the benefits of retrieval analysis throughout the Total Product Life Cycle of a medical device. failure analysis retrieval analysis clinical performance postmarket surveillance medical...

... temperature, failure analysis, re investigation Background Autogenous ignition temperature (AIT) testing determines the temperature at which liquids and solids will spontaneously ignite [1]. In 30 years of testing, Manuscript received August 3, 2015; accepted for publication October 22, 2015. 1NASA White...

... of loading. Loci of failure are reported for the various materials, scarf angles, and loading conditions. repair induction cure thick-section composites axial compression Hopkinson bar failure analysis Bazle A. Gama, 1Stephane Mahdi, 2 Curt Cichanowski, 3 Shridhar Yarlagadda, 1and John W...

... criteria strength structural requirements failure modes allowables stress analysis failure analysis fracture mechanics James R. Eisenmann 1 and Carl Q. Rousseau t IBOLT: A Composite Bolted Joint Static Strength Prediction Tool REFERENCE: Eisenmann, J. R. and Rousseau, C. Q., "IBOLT: A Composite...

... and macrophotography, scanning electron microscopy, and chemical analysis. The evidence was then used to prove or disprove various failure scenarios. This paper reports the analysis results and provides recommendations for improving the system's resistance to ignition and combustion. failure analysis failure...

... investigation failure analysis oxygen fire cause and origin analysis pipeline fires root cause analysis Barry Newton I and Elliot T. Forsyth 2 Cause And Origin Analyses Of Two Large Industrial Oxygen Valve Fires REFERENCE: Newton, B. E., and Forsyth, E. T., "CauseAnd Origin AnalysesOf Two Large...

... appropriate in product development. Similar practical considerations suggest the level of analysis detail in phases such as predesign technology development and failure analysis. The level of analysis detail drives the choice of failure criterion. A modern understanding of the physics of laminated composite...

... since these countermeasures were applied. fretting fatigue failure analysis steel making rolling mill backup roll shrink-fitted axle surface rolling overhanging of the contact edge Masanobu Kubota, i Hidenori Odanaka, 2 Chu Sakae,3 Yoshihiro Ohkomori,4 and Yoshiyuki Kondo5 The Analysis...

... for the failure probability. Also it became necessary to perform a monthly inspection and check the drive and control system by means of a semi-automated procedure. Several aspects of the failure analysis of the hydraulic system are discussed in this paper. failure analysis failure probability hydraulic...

... to be discussed during this conference. cavitation fatigue lubrication hydraulic fluid failure analysis Hong Liang,1Keizo Mizuno,2 George E. Totten,3Roland J. Bishop, Lemberger5 Fundamental Hydraulic Wear Processes Reference: Liang, H., Mizuno, K., Totten, G. E., Lemberger, S., and Bishop, R. J., Jr...

... significantly improved through fatigue crack growth testing of the actual failed material under relevant service conditions. IN625 K-500 high strength fastener materials failure analysis environmentally assisted cracking fatigue M. Gaudett, 1 R. Tregoning, 2 E. Focht, 1 X. J. Zhang, 1 and D. Aylor...

... A failure analysis of two broken bolts from an Army tank recoil mechanism was performed by the U.S. Army Research Laboratory (ARL), Weapons and Materials Research Directorate. The bolts failed at the head-to-shank radius during installation at Aniston Army Depot. A total of 69 additional bolts...

... In conducting a failure analysis on a fastener, measuring fatigue strength or endurance limit is often the time-limiting factor in the analysis. The classical approach to measure the fatigue strength, which often takes as much as 3–4 months to 3–4 years using several machines, cannot...

... pressure/temperature to the extent of O-ring damage, shear energy and oxygen flow. The model allows for heat loss and variable generation rates. Buna-N O-rings liquid-oxygen failure analysis elastomer ignition mechanical impact Barry E. Newton, ~D. Bruce Wilson, 2 and Jack S. Stradling 3...

... their product by conducting a prescribed salt fog test incorporating the prescribed torque requirements. Finally, the material used to fabricate the retaining clip should be changed to prevent galvanic corrosion. Failure analysis fractography hydrogen induced cracking Inconel 718 Victor K. Champagne...

... to predict the compressive strength of the T800/924C system; agreement between theory and experiment is acceptable. carbon fibre composite temperature effects shear properties compressive strength fibre misalignment fibre microbuckling failure analysis Constantine Soutis 1 Compressive Strength...

... was used to organize the complex world of materials degradation and lifetime prediction. A system developed with this principle was found to be able to incorporate the fundamental knowledge derived from failure analysis or from other fields of materials engineering. Such a framework could also constitute...

... hardware components, as well as components from the External Tank (ET), the Solid Rocket Boosters (SRB's), and Ground Support Equipment (GSE). NASA metallurgical failure analysis fatigue stress corrosion cracking (SCC) hydrogen assisted cracking (HAC) overload scanning electron microscope (SEM...