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.

Time Dependent Materials Division - Updated May 2013

Meeting Minutes, June 12, 2012, Costa Mesa, CA

• Richard Hall welcomed attendees.
• Minutes of June 14, 2011 meeting were read to the TD attendees.
• Richard Hall announced that we need to elect a new TD Secretary, Richard Hall will be finishing his Chair duty, Jerry Qi will be moving to Chair, Bonnie Antoun will move to Vice Chair and the Secretary position will be open.  Need to elect during this meeting.
• Discussion of whether to continue to sponsor a Track at the 2013 conference.
• Is the Track title okay?  We reviewed the 2012 call.  Questioned whether it is still worth calling out multifunctional.  A few attendees said yes so we decided to retain multifunctional aspect.
• Decided to keep the title the same but add a section on time dependent processes in Bio materials
• Asked for other ideas for the Track.  Ideas included:  extreme environments/extreme conditions, high pressure/low temperature, extreme temperatures and pressures
• Proposed signing up for organizing sessions as we iterated through ideas (rather than assign later), topic and organizers:
• Effects of interfaces/interphases – Richard Hall
• Effects of Inhomogeneities – Alireza V. Amirkhizi, Yusheng Yuan
• Extreme Environments - Alireza V. Amirkhizi, Yusheng Yuan
• Metallic Materials – Bonnie Antoun and Hongbing Lu
• Viscoelasto-plasticity and Damage – Jerry Qi, Meredith Silberstein
• Fabrication processes – Richard Hall
• Nanoscale Testing – Charles Lu, Hongbing Lu
• Additional Bio –
• A note was made to try to include “metals” and “bio” throughout the 2013 TDM Track call to be more clear that these topics are welcome in the Track.
• Richard Hall described the position of Secretary of the TD and called for nominations.  Hongbing Lu nominated Alex Arzoumanidis and Richard Hall seconded the nomination.  No other nominations were made.  A vote was called for Secretary election and Alex Arzoumanidis was elected by unanimous vote.
• We had a brief discussion of attendance at the sessions, attendance was generally very good, especially after keynote speakers.  Attendance was often low immediately after lunch.
• Richard Hall asked if there were any concerns that anyone would like brought to the attention of SEM.  The following concern was voiced:

After lunch attendance, Hongbing Lu suggested providing lunch so people do not have to leave the site for lunch

• Discussed paper length, currently requiring a 2 page extended abstract so authors would have no conflict publishing shortly after conference in MTDM (Journal of the Mechanics of Time-Dependent Materials).  We will be soliciting Track authors (via email) to submit to an issue of MTDM.
• Discussed having a Best paper/Best presentation award and decided we could do that within our TD.  Suggestions included one Best paper per day.  We will ask SEM for guidelines, talk to other TDs.  We will need forms, nominations, etc. and TD members who would attend all talks in a day in order to vote.
• Jevan Furmanski arrived from another TD meeting (Dynamic Materials) and will organize a session on Dynamic Failure, jointly with Dynamic Materials TD.
• TD officers asked if anyone else would like to participate in 2013 Track organizing committee.  Jevan Furmanski and Alireza Amirkhizi.
• Meeting was adjourned.