Now showing items 1-10 of 3815
Improving Genetic Algorithm Efficiency and Reliability in the Design and Optimization of Composite Structures
(Department of Computer Science, Virginia Polytechnic Institute & State University, 1996-10-01), TR-96-13
Genetic algorithms (GAs) often require many iterations for convergence. If the cost for the analysis of each laminate is high, then GA optimization becomes infeasible due to the large amount of CPU time required. A genetic ...
Measurement of Software Maintainability and Reusability in the Object Oriented Paradigm
(Department of Computer Science, Virginia Polytechnic Institute & State University, 1994-05-01), TR-94-19
The Metrics Group of Virginia Tech has been studying the object oriented paradigm and how it relates to software maintenance and software reusability in an attempt to make programmers more productive. Software reuse is the ...
Work Value Characteristics of Construction Professionals
(Virginia Tech, 2016-12)
The construction industry is projected to experience continued employment growth affecting craft workers but professionals as well. Previous studies have identified demographic differences in generational categories and ...
Test Videos- Flexural Strength Experiments on Exterior Metal Building Wall Assemblies with Rigid Insulation
This research program evaluated the flexural capacity of a metal building wall system with rigid board foam insulation sandwiched between C- and Z-section girts and through-fastened steel panels. Vacuum box tests were ...
Test Videos - Compression-Tension Hysteretic Response of Cold-Formed Steel C-Section Framing Members
This paper summarizes results from an experimental program designed to evaluate the tension-compression cyclic axial response of cold-formed steel Csection structural framing members. A new cyclic loading protocol for ...
Rail Surface Measurement And Multi-Scale Modeling Of Wheel-Rail Contact
(Amer Soc Mechanical Engineers, 2016-01-01)
Internet Based Real-Time Multiuser Simulation: Ppong!
(Department of Computer Science, Virginia Polytechnic Institute & State University, 1997-02-01), TR-97-01
There is a growing demand for real-time collaborative applications through the World Wide Web. New techniques are required for real-time applications to perform well in the face of changing network conditions that often ...
Detecting Delaminations in Composite Structures Using Anti-Optimization
(Department of Computer Science, Virginia Polytechnic Institute & State University, 1994-07-01), TR-94-26
The present study proposes a detection technique for delaminations in a laminated composite structure. The proposed technique optimizes the spatial distribution of harmonic excitation so as to magnify the difference between ...
Principles of Simulation Model Validation, Verification, and Testing
(Department of Computer Science, Virginia Polytechnic Institute & State University, 1994-06-01), TR-94-24
Sufficient experience has been gained over the last decade in simulation model validation, verification, and testing (VV&T) to establish basic principles and its characteristics. This paper presents 15 principles of ...
Nonlinear Thermal Waves: Part II - Analytical Solutions for Pulses
(Department of Computer Science, Virginia Polytechnic Institute & State University, 1994-12-01), TR-94-33
The weak shock theory developed by Cramer (1994) is used to derive explicit solutions for the evolution of one-dimensional weakly, nonlinear, weakly relaxing heat pulses in rigid conductors. Formulas and differential ...