Time Dependent Materials

There are many problems in modern engineering practice that require a detailed knowledge of how materials respond to loads over extended periods of time in a variety of applications and designs. Metals, as well as soils and concrete, exhibit creep behavior under certain conditions and this phenomenon has been traditionally incorporated into engineering education and practice.

During the past few decades, polymers and their composites have increasingly entered the domain of engineering design. These are the time-dependent materials par excellence. Their inroads into mechanical engineering practice has multiplied the need for deepening of our understanding of the role of time-dependence in materials behavior.

The Division intends to include in its purview also other time-dependent materials such as metals and ceramics at high temperatures, as well as wood and soils.

Officers
*Chair*	Richard Hall Air Force Research Laboratory richard.hall@wpafb.af.mil
*Co-Chair*	H. Jerry Qi University of Colorado qih@colorado.edu
*Secretary*	Bonnie Antoun Sandia National Laboratories brantou@sandia.gov

Time Dependent Materials Division - Updated May 2011

Meeting Minutes, June 7, 2010, Indianapolis, IN

Minutes of June 3, 2009 meeting were approved.
Discussion regarding the fact that his will be the last SEM meeting that we will hold the TD symposium. Starting next year we will move to our own Track. This is possible because our symposia have had sufficient papers and we have SEM approval/support to start a Track. Next year (2011 Annual meeting) the Track will focus on Time Dependent behaviors covering a wide spectrum of materials, emphasizing mechanical behaviors. The track will be joint with the Composite Materials division of SEM.
“Challenges in Mechanics of Time Dependent Processes” was discussed as a possible track title.
Discussion about bringing various aspects into the track:
Hybrid material flavor
Multi-functional materials
Joint track to cover all of these things
Announcement of the officers elected at last year’s meeting:
Chair - Richard Hall, AFRL
Vice Chair – Jerry Qi, University of Colorado
Secretary – Bonnie Antoun, Sandia National Laboratories
Ideas for symposia topics were sought, none were proposed
Question was posed if there were any complaints and/or issues that the TDM TD should raise with the SEM executive committee. None were raised.
Announced that Jerry Qi will be organizing the “Journal of Mechanics of Time Dependent Materials” special issue(s) for the track papers in 2011. If anyone wants to submit their paper to the journal, please send to Jerry, Rich, Bonnie or go to the website.
This special issue of MTDM is similar to 2010, and TDM TD has arranged with SEM to allow extended abstracts (2 page) again rather than 6 page SEM conference papers. This was noted to facilitate preparation of MTDM journal papers that do not duplicate the conference paper.
Meeting was adjourned.