Pressure Vessels for Space Station Freedom
Space Station Freedom (SSF) will utilize more than 10 different types of pressure vessels for storage of oxygen, hydrogen, nitrogen and mixed gases at operating pressures ranging from...
Space Station Truss Longevity
This paper describes the approaches taken to ensure Space Station truss longevity. The expected environmental and operational threats to structural integrity and the specific solutions...
System and Utilization Study of Japanese Experiment Module for International Space Station
The paper briefly reviews the overall system study of Japanese Experiment Module (JEM) which consists of Pressurized Module, Exposed Facility and Small Remote Manipulator System (RMS)....
Mode Truncation Effects on Flexible Space Structures
This paper deals with the problem of active vibration control of flexible space structures. The main difficulty associated with this problem is that the structure has infinite vibration...
Reliability Consistent Load and Resistance Factors
A practical algorithm to find the partial safety factors consistent with target reliability in LRFD format is proposed. The method is based on Second Order Second Moment method and Reliability...
Reliability Assessment of Pressurized Fuselages with Multiple-Site Fatigue Cracks
Multiple-site damage could cause a catastrophic structural failure of aged aircraft. A reliability analysis is proposed for an assessment of the capability of visual inspection on multiple-site...
A Reliability Analysis of Aerospace Structures Subject to Thermal Mechanical and Flight Loads
Aerospace structures are subjected to various flight loads throughout their service life. In certain anticipated missions, significant thermal stresses will be generated through atmospheric...
Industrial Strength 3-D
Williams assesses the benefits of using three-dimensional computer modeling in the design of industrial structures, comparing the reality in which the computer is a useful tool for engineers...
Recent Advances in Structural Rehabilitation Techniques for Underground Sewer Pipelines
A great challenge for the coming years, if not decades, will be the repair, renovation and renewal of the existing sewerage systems in the Federal Republic of Germany in the interest of...
Uprating an In-Service Offshore Pipeline
The Ekofisk to Emden 36-inch pipeline, transmits gas 275 miles from the Ekofisk field to Emden, West Germany, and has been in operation since 1977. The operator Phillips Petroleum Company...
The NOVA SPAN Bridge System
The NOVA SPAN Bridge concept provides the basis for the design and construction of a new variant in the field of bridges and culverts which, in its performance and operation, incorporates...
Buried Structural Capacity of Insituform?
In July 1988, a test was conducted at Utah State University to determine the structural support that can be provided to a failing rigid pipe system through the use of the Insituform process....
Failure of Prestressed Concrete Embedded Cylinder Pipe
In 1964, the Ontario Provincial Government undertook to supply water to the City of London (current population 300,000). The supply source was from Lake Huron near Grand Bend, Ontario...
Designing Vitrified Clay Pipe Systems with EASE
NCPI has developed a computerized trench load design program which provides a broad and complete spectrum of design options which will enable engineers and contractors to safely design...
A Look Back in Time to Verify Life Cycle Cost Analyses
The proper engineering design of any hydraulic structure requires consideration of different but interrelated fields of: 1) Planning, 2) Hydrology, 3) Hydraulics, 4) Structural, 5) Installation,...
Structural Safety and Reliability
This proceedings of the 5th International Conference on Structural Safety and Reliability (ICOSSAR '89) held on August 7-11, 1989 in San Francisco, California contains almost...
Museum Showcases the Future
On May 4 in Philadelphia, the Franklin Institute's new wing, called the Futures Center, will open to the public. When the institute's neoclassic main buiding...
The Next Earthquake
The California's October 1989 Loma Prieta earthquake confirmed must of the current research and practice about structural engineering and seismic events. It also highlighted...
Incorporating Seismotectonic Data into Seismic Hazard Analyses
A wide range of seismotectonic data are now being incorporated into probabilistic seismic hazard analyses, supplementing the inadequately short historical seismicity record. This paper...
Kinematic Models of Extensional Structures: Seismic Implications
Kinematic models can relate faults of different types and different positions within a single dynamic system and thereby offer the potential to explain the disparate seismic activity characteristic...
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