Department of Civil Engineering and Engineering Mechanics
Chair: Professor Raimondo Betti, 610 Mudd, 212-854-6388
- deterioration of cable-suspension bridge wires
- structural damage identification
Contact: Professor Raimondo Betti, email@example.com, 640 Mudd, 212-854-6388
- risk assessment and risk management of infrastructure
This project aims to assess the risk to the civil infrastructure (buildings, bridges, lifelines, etc.) arising from hazards in major metropolitan areas, both natural (earthquake, wind, landslides, etc.) and man-made (climate change, accidents, terrorism). Once the risk is assessed, the objective is to introduce innovative ways to mitigate the catastrophic consequences of the various hazards. The approach followed to address this problem is a multidisciplinary one, combining knowledge and techniques from the natural sciences, engineering, urban planning, economics, finance, and psychology.
- scientific and aesthetic analysis of large-scale structures
This project aims to analyze a series of large-scale structures (including bridges, buildings, and roof structures) from both a scientific and an aesthetic point of view. The social significance of the structures is also considered. The concept of structural art is studied, and emphasis is given to symbolic and historic structures.
- characterization of microstructure of heterogeneous materials
This project aims to develop methodologies to accurately quantify and describe the uncertain microstructure of two-phase materials. Applications in a wide range of materials, including concrete, cellular aluminum, graphite-epoxy fibrous composites, etc.
- reliability of fatigue-sensitive structures, including aircraft and ships
This project aims to develop techniques to assess the reliability of structures that are sensitive to fatigue. Methodologies are developed to estimate the deterioration of their 16 reliability as a function of time and to introduce optimum nonperiodic inspection schedules. Emphasis is placed on aircraft and ships.
- simulation of stochastic processes and fields
This project aims to develop methodologies to digitally simulate stochastic processes and fields that can be used to model random actions on structures (e.g., earthquakes, wind, blast) or uncertain material and soil properties.
- stochastic finite element methods
Contact: Professor George Deodatis, firstname.lastname@example.org, 630 Mudd, 212-854-9728
- structural dynamics
- structural identification
- active control
Contact: Professor Andrew Smyth, email@example.com, 636 Mudd, 212-854-3369
- computational fracture mechanics
Students work on computer simulations and algorithm development involving advanced finite element techniques to model fracture and multiphase materials. This requires basic knowledge in finite element methods. For academic credit, a minimum commitment of 5–10 hours per week.
- intensive computations on parallel supercomputers
Students employ supercomputers at Columbia University to model very large problems in elasticity, e.g., models of an entire building with millions of unknowns, using finite element codes. For academic credit, a minimum commitment of 5–10 hours per week.
- damage induced corrosion (in collaboration with Professor Betti)
- structural health monitoring (in collaboration with Professor Smyth)
- contact mechanics
- rheological tests of warm mix asphalt
This project tests the use of some additives to improve the flowability of asphalt materials so they can be produced at lower temperatures and thereby reduce energy consumption and gas emissions. This concept also explores other technologies such as fiber-reinforced asphalt, recycled asphalt, and rubberized asphalt. Laboratory assistant positions for academic credit are available for material testing and modeling. The weekly time commitment is 10 hours. Students should have basic training in laboratory testing and fundamental knowledge of solid mechanics.
- long-term performance of polymer materials
- fracture characterization of multilayered materials