Stamping of high performance thermoplastic composite intrusion beams

Novel Thermoplastic Polyimide Composite Materials

Thermodynamics of water sorption in high performance glassy thermoplastic polymers

Sorption thermodynamics of water in two glassy polymers, polyetherimide (PEI) and polyetheretherketone (PEEK), is investigated by coupling gravimetry and on line FTIR spectroscopy in order to gather information on the total amount of sorbed water as well as on the different species of water molecules absorbed within the polymers, addressing the issue of cross- and self-interactions occurring in...

OPTIMAL PERFORMANCE-BASED SEISMIC DESIGN OF COMPOSITE BUILDING FRAMES WITH RC COLUMNS AND STEEL BEAMS

Composite RCS building frames integrate reinforced concrete columns with structural steel beams to provide an efficient solution for the design and construction of earthquake-resisting structures. In this paper, an optimization framework is developed for performance-based seismic design of planar RCS moment resisting frames. The objective functions are defined as minimizing the construction cos...

High-performance Network Intrusion Detection through Parallelism

Schuff, Derek L. M.S.E.C.E, Purdue University, May, 2007. High-Performance Network Intrusion Detection through Parallelism. Major Professor: Vijay S. Pai. Network intrusion detection has become increasingly popular in recent years due to the proliferation of Internet-based security attacks. Network intrusion detection systems (NIDS) inspect the content of incoming packets on a network for known...

Design of composite beams with web openings

ao"length of opening dh, dl"distance from top of steel section to centroid of concrete force at high and low moment ends of the opening, respectively dr"distance from outside edge of flange to centroid of reinforcement *b"maximum bending deflection for unperforated beam *m,b"maximum bending deflection for a member with an opening Fy"yield stress of steel FM y"reduced axial strength of steel in ...