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Measurement of three-dimensional vehicular motion to assess the dynamic performance of safety structures
(1992)
Measurements system of three-dimensional motion of an impacting vehicle were studied. Through the review of existing systems, a nine accelerometer array was found to be a both stable and economical system. This system ...
Mechanical characterization of nonlinear laminated composites with traverse crack growth
(1992)
A work potential based analysis was used to model damage related material nonlinearities in graphite-epoxy laminates. Two work potentials were incorporated. One potential was related to sub-ply damage, such as shear banding ...
Failure prediction of beryllium cross-rolled sheets by incorporating closure of cubic polynomial tensor
(1992)
Thin beryllium sheets are known to fail catastrophically when deformed by out-of-plane loadings. Primary objective of this study is to approach the overall problem of failure prediction from a macroscopic point of view. ...
Nonlinear three dimensional analysis of downdrag on pile groups
(1992)
The downdrag on pile groups was investigated by using a numerical analysis and an analytical study. The emphasis was on quantifying the reduction of downdrag on piles in a group due to the group effect. The case of a single ...
A study of electrical and thermal properties and their use to detect natural gas hydrates in ocean sediments
(1992)
Natural gas hydrates may exist in deep ocean sediments in the presence of gas. Since recovery of hydrate samples is very difficult using conventional geotechnical sampling operations the development of in situ detection ...
An intelligent resource allocation system
(1992)
The main objectives of this research are investigating the process planning knowledge of allocating construction resources for earthmoving processes and capturing this knowledge in an Intelligent Resource Allocation System ...