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Symposia
equations (thermomechanical balance laws, Maxwell’s equations, Since 2007 - Teaching Position at the Otto von Guericke University in
diffusion). Dr. Kiefer was elected member of the ASME Aerospace Division, Magdeburg, Germany
Adaptive Structures and Material Systems Branch in 2011 and has served
in various roles within its Adaptive Systems Dynamics and Controls Since 2002 - Scientist in the DLR-Institute of Composite Structures and
Technical Subcommittee. This involvement included (co-)chairing Adaptive Systems
Symposium 3: Modeling, Dynamics, and Control of Adaptive Systems as
well as the Best Student Paper Competitions at ASME-SMASIS 2013-2015. 1997 - 2002 - Study of Mechanical Engineering
Dr. Kiefer continues to enjoy engaging in fruitful research collaborations
with colleagues from around the world. MULTISCALE MODELING NEEDS FOR ADVANCED TECHNIQUES
THAT COUPLE PHYSICS BASED STRUCTURAL MECHANISMS
SYMPOSIUM 4
Jay Tiley
MORPHING AIRCRAFT WINGS AND WIND TURBINE BLADES: A Program Officer for the Multiscale Structural Mechanics
RECAP OF DLR’S ACTIVITIES and Prognosis Portfolio
Air Force Office of Scientific Research
Johannes Riemenschneider Abstract
Head of the Adaptive System Department
DLR New game-changing aerospace technologies, including hypersonics and
unmanned vehicles, has increased the need for coupled multiscale
Abstract physics based models. These models often require temperature
dependent material constants that are often averaged over
Morphing has been of interest in different areas of applications. Two of microstructures or provided by modeled material systems. This includes
them are wind turbines and fixed wing aircrafts. Even though the reasons new advanced peridynamic and crystal plasticity models. Determination of
for morphing is different for each application, some of the structural the microstructure and chemical parameters are critical to the underlying
approaches are similar. As wind energy turbines are getting larger, the mechanisms that drive mechanical behavior, however, measuring the
blade root bending loads are becoming a design constraint. Especially properties has proven difficult for many of the aerospace materials
loads resulting from the increasing blades masses as well as from currently in development. This talk describes several research activities
turbulences, gusts and even local stall at the inner blade section cause an that are modeling basic mechanisms across multiple length scales, and
increase of the fatigue loads. Morphing can help to reduce such loads. In describes several of the features needed for continued model
aircraft research a major reason for morphing wings has been the development. This includes an overview of research directions within the
development of high lift devices that develop less noise and enable Multiscale Structural Mechanics and Prognosis Portfolio within the Air
laminar flow by leaving out steps and gaps on the surface. Force Office of Scientific Research.
Within this talk status of the research on both applications at the German Biography
Aerospace Center (DLR) is presented, discussing individual challenges for
wind as well as aviation industry. Jaimie Tiley is Program Officer for the Multiscale Structural Mechanics and
Prognosis Portfolio at the Air Force Office of Scientific Research in
Biography Arlington Virginia. He has over 30 years of experience as a program
manager and research engineer developing and executing both basic and
Since 2017 - Head of the Adaptive System Department at the Institute of applied research programs for the Air Force. He has Bachelor and Masters
Composite Structures and Adaptive Systems of the German Aerospace of Science Degrees in systems engineering, a Masters of Science degree
Centre in environmental management and engineering, a Masters of Science
degree in materials engineering, and a PhD in materials science. His
Since 2009 - Deputy Head of the Adaptive System Department at the academic research work has centered on the optimization of hypersonic
Institute of Composite Structures and Adaptive Systems of the German trajectories, application of multi-utility theory and advanced decision
Aerospace Centre theories, and the use of numerical techniques to link microstructures to
mechanical behavior in high temperature aerospace alloys. He is a
2008 - PhD in Mechanical Engineering, from Otto-von-Guericke- graduate of Air War College and a licensed Professional Engineer. His
16 Universität in Magdeburg current portfolio centers on the basic understanding of mechanisms
impacting aerospace mechanical properties and developing predictive
lifing models for ceramic, composite, polymer, and metallic materials.
