Page 35 - ASME IMECE 2015 Program

Track Plenary

Track 5: Education and Globalization are areas of active research. Research accomplishments in these areas, as
SESSION 5-13-1: PLENARY SESSION well as in energy efficiency for ship structures, alternate energy options,
Tuesday, November 17, 1:15pm–2:45pm advanced manufacturing, additive manufacturing, nanocomposites,
370D, Convention Center nondestructive evaluation, and structural health monitoring, will be
A Novel Spacecraft with an Innovative Payload for Deep Space discussed. The synergisms associated with the utilization in ONR research
Exploration: A Global Collaborative Accomplishment of outstanding researchers from the U.S. as well as from other countries
will be discussed. The active engagement with the international research
Abstract: The Shinen2 spacecraft, currently in an elliptical orbit around the community, and with other Navies and Defense Departments, have
Sun, was launched on December 3, 2014 as part of Hayabusa2 mission (an resulted in significant benefits to the research community.
asteroid exploration mission on a second sample return challenge). The
Shinen2 spacecraft, designed and built by the Kyushu Institute of Biography: Yapa D. Rajapakse is the program manager, solid mechanics, at
Technology (KIT-Japan), is a hexagonal shaped, 15 kg, 47 x 49 x 49 cm the Office of Naval Research (ONR). The major focus of the Solid Mechan-
structure built with lightweight and durable carbon fiber reinforced ics Program is on the performance of marine composites and composite
polymer (CFRP) with dual batteries charged by solar panels on each side sandwich structures in extreme environments and extreme loading
of the structure and redundant UHF transmission systems at 437 MHz. conditions. Dr. Rajapakse received his PhD in applied mechanics, under
Shinen2 proved its success by transmitting data from Moon orbit and the guidance of the late Professor J. N. Goodier, and MS in mathematics
beyond (currently in orbit at about 100 times distance from Earth to Moon). from Stanford University. He has been elected Fellow of the following four
Shinen2’s only payload is a radiation detector designed and built by technical societies: American Society of Mechanical Engineers (ASME),
Prairie View A&M University in collaboration with NASA Johnson Space Society of Engineering Science (SES), American Academy of Mechanics
Center (NASA-JSC), University of Texas (UT–Austin), and University of (AAM), and American Society for Composites (ASC). He has served on the
Nevada Las Vegas (UNLV). The radiation particle pixel detector (PPD), a editorial boards of eight technical journals, including Composites Science
10 x 10 x 10-cm cube structure was designed and developed as: (i) low and Technology, Journal of Sandwich Structures and Materials, Journal of
weight (~ 800 gr), (ii) low power (~ 1 W), (iii) high reliability over few years (~ Composite Materials, and Composites Part B. Dr. Rajapakse has served as
5+ years), (iv) high tolerance in deep-space harsh radiation environment president, vice-president, and member of Board of Directors of SES. He
for a broad range of temperatures (–50°C to +50°C), and (v) with a unique has served as Chairman of the Composite Materials Committee of the
capability to provide a data downlink over a low bit rate communication Applied Mechanics Division of ASME, and the Polymer-Matrix Composites
transmission to Earth (few kilobytes) from deep space. This payload uses Division of ASC. He has organized ONR Symposia at several conferences,
two CMOS (complementary metal oxide semiconductor) sensors and including ASME Conferences. He has edited/coedited 32 books, including
custom-designed radiation-hardened FPGA (field-programmable gate recently: “Dynamic Failure of Materials and Structures,” “Blast Mitigation:
array) to sustain the deep-space radiation environment with capability to Experimental and Numerical Studies,” and “Durability of Composites in a
estimate energy and particle flux, typically, 85% of protons and 14% of the Marine Environment.”
alphas of the Galactic Cosmic Ray (GCR) composition in deep space that
varies as a function of the solar cycle.
Track 8: Safety Engineering and Risk Analysis
SESSION 8-10-1: RELIABILITY METHODS I
Track 6: Emerging Technologies Thursday, November 19, 8:00am–9:30am
SESSION 6-2-1: ADVANCED MATERIALS AND MANUFACTURING 361A, Convention Center
Monday, November 16, 10:30am–12:00pm Frontiers in Risk and Reliability Research
361A, Convention Center (IMECE2015-54190)
Challenges in Materials for Naval Structures in Extreme Environments Mohammad Modarres
(IMECE2015-54220)
University of Maryland
Yapa D. Rajapakse
Abstract: This talk will highlight current and promising research directions
Office of Naval Reserach
that could revolutionize the fields of reliability engineering and risk
Abstract: With the current focus on life-cycle cost reduction and enhanced assessment. Leading topics include research on the fundamental sciences
performance for naval structures, the Office of Naval Research supports that underpin risk and reliability technologies, challenges in reliability of
research in many disciplines to provide the science base for the optimum ultra-complex systems of interacting hardware and software, utilization
design and effective utilization of future advanced naval structures. These and processing of large data and machine learning algorithms, advances
structures operate in severe environments and are subjected to tempera- in system-level prognostics and health monitoring, and new approaches to
ture extremes, highly dynamic time-dependent three-dimensional loading, integrate physics of failure and traditional reliability assessment methods.
hydrostatic pressure, exposure to sea water and high levels of humidity,
Biography: Mohammad Modarres works in probabilistic risk assessment
and ultraviolet radiation. In addition, fluid-structure coupling is an
and management, uncertainty analysis, probabilistic physics of failure, and
important factor to be included in all aspects of analysis of ship structures.
probabilistic fracture mechanics modeling. He has served as a consultant
The challenges associated with the development of advanced materials 35
or board member to several governmental agencies, including the Nuclear
for these structures, assessment of their performance characteristics, and
Regulatory Commission, Department of Energy, National Academy of
limits of material behavior, as well as avenues for extending these limits,