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Timoshenko Lectures

Listed in this post are the speeches given upon receiving the Timoshenko Medal.  Every November, at the Annual Applied Mechanics Dinner, the medalist of the year delivers a speech. Taken together, these speeches provide a long perspective of our field, as well as capsules of the lives of extraordinary individuals.

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marco.paggi's picture

Advanced course on contact mechanics and tribology @ CISM, Italy

Dear Colleague,

 

this is a gentle reminder about the CISM course:

 

"Modelling and Simulation of Tribological Problems in Technology"  

Udine, May 28 - June 1, 2018

 

Pradeep Sharma's picture

Celia Reina and Yihui Zhang are the recipients of the 2017 Eshelby Mechanics Award for Young Faculty

It gives me great pleasure to announce the outcome of the 2017 competition for the Eshelby Mechanics Award for Young Faculty. This award is given annually to rapidly emerging junior faculty who exemplify the creative use and development of mechanics. The intent of the award is to promote the field of mechanics, especially among young researchers. The selection committee consisted of: K. Ravi-chandar (UT Austin), Huajian Gao (Brown University), G.

Mike Ciavarella's picture

Kenneth Langstreth Johnson. 19 March 1925 — 21 September 2015

I strongly recommend reading these two papers about the recent loss of Ken L Johnson, FRS, Timoshenko Medallist, Gold Tribology Medal, who died the day of my 45th birthday, exactly twice as old.

Rod Smith Biographical Memoirs of Fellows of the Royal Society · August 2016 Kenneth Langstreth Johnson. 19 March 1925 — 21 September 2015 DOI: 10.1098/rsbm.2016.0012   

Hills, D. A., Nowell, D., & Barber, J. R. (2016). KL Johnson and contact mechanics. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 0954406216634121.

ABAQUS - the influence of changing kinematic and cycling hardening parameters

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Hello,

 

I have recently done a simple hourglass model to check the influence of hardening parameters in Abaqus. The reason was the effects of the parameters' change in bigger models were a bit surprising, therefore I needed to investigate the reason using some simpler model. Please see file 1.

 

After performing tension/compression cycles I got results as shown in files 2, 3, 4 and 5. Please note that only the hardening parameter in the description changes, the other three stays the same for each series.

 

Mike Ciavarella's picture

Obituary for prof. Paul Paris the inventor of the fatigue crack propagation "Paris' law"

I do not think in Imechanica there has been an obituary for Paul Paris, whose work in fatigue crack propagation is extraordinary and one of the few important and lasting contributions ----- today our aircrafts, both civil and military, all rely on "damage tolerance", which is based on Paris' law.   Paris' law, as every great innovations, was published in 1961 only after rejection by three of the leading journals in the fracture mechanics field.  It bears the name of "law" although of course it is not like Newton's law.  It is a power law, based perhaps on what Barenblatt calls "incomplete"

2018 Thomas K. Caughey Dynamics Award – Professor Firdaus Udwadia

The Executive Committee of the ASME Applied Mechanics Division is pleased to announce and congratulate Professor Firdaus Udwadia, Professor of Civil Engineering, Aerospace & Mechanical Engineering, University of Southern California, as the recipient of the 2018 Thomas K. Caughey Dynamics Award.

2018 Thomas J.R. Hughes Young Investigator Awards – jointly to Professor Dennis Kochmann and Professor Liping Liu

The Executive Committee of the ASME Applied Mechanics Division is pleased to announce and congratulate both Professor Dennis Kochmann, Professor of Mechanics and Materials, ETH Zürich, and Professor Liping Liu, Associate Professor of Mechanical & Aerospace Engineering, Rutgers University, as the joint recipients of the 2018 Thomas J. R.

Society of Engineering Science - 2018 Medalists and Fellows

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The Society of Engineering Science is pleased to announce the award of the 2018 society medals and fellow election:

The 2018 G.I. Taylor Medal of SES is awarded to Howard Stone, Princeton University, for seminal contributions to fluid dynamics research and education, particularly the understanding of low Reynolds number flows, microfluidics, interfacial phenomena, and biological fluid dynamics.

Pradeep Sharma's picture

(Reminder: Due 31st October) Call for Nominations for the Eshelby Mechanics Award for Young Faculty

It is my pleasure to solicit nominations for the "Eshelby Mechanics Award for Young Faculty". This award, launched in 2012, is given annually to rapidly emerging junior faculty who exemplify the creative use and development of mechanics. The intent of the award is to promote the field of mechanics, especially among young researchers. While interdisciplinary work that bridges mechanics with physics, chemistry, biology and other disciplines is encouraged, the ideal awardee will demonstrate clear inspiration from mechanics in his/her research.

Pradeep Sharma's picture

(Due 31st October) Call for Nominations for the Eshelby Mechanics Award for Young Faculty

It is my pleasure to solicit nominations for the "Eshelby Mechanics Award for Young Faculty". This award, launched in 2012, is given annually to rapidly emerging junior faculty who exemplify the creative use and development of mechanics. The intent of the award is to promote the field of mechanics, especially among young researchers. While interdisciplinary work that bridges mechanics with physics, chemistry, biology and other disciplines is encouraged, the ideal awardee will demonstrate clear inspiration from mechanics in his/her research.

tigerofmahdi's picture

Impact and shock loading

Hi Dears

Can any body say what is the difference between impact and shock loading??

 

thanks a lot 

Yavari

tigerofmahdi's picture

Half Space Problems

Hi Dear

I have a question about half space problems.

When I want to solve a half space problem by utilize a numerical method such as FEM how I should consider the boundary counditions at the infinite bound??

when I want to solve with a analytical method I know it but What I should do for FEM at infinite bound??

Yonggang Huang's picture

Ares Rosakis and Huajian Gao received the von Karman medals together

Professor Ares Rosakis (Caltech) and Professor Huajian Gao (Brown University) were awarded the 2016 and 2017 von Karman Medals, respectively, by Professor JS Chen (UCSD), President of the Engineering Mechanics Institute, ASCE, at its annual conference in San Diego, CA, in June, 2017.

 

Teng Li's picture

Huajian Gao Elected to German National Academy of Sciences

Huajian Gao, Walter H. Annenberg Professor of Engineering at Brown University, has been elected to the German National Academy of Sciences Leopoldina in recognition of his scientific achievements.

Yulianna Voronina Fantastic Belly Dancer belly dance Ml6

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Rashid K. Abu Al-Rub's picture

Ali H. Nayfeh passed away

Ali Hasan Nayfeh

Professor Ali H. Nayfeh passed away today Monday (March 27, 2017) at his home in Amman, Jordan. He was the University Distinguished Professor of Engineering at Virginia Tech Wikipedia

We mourn Nayfeh's passing with deep sadness for the loss of a giant in dynamics and structural mechanics.

 

Pradeep Sharma's picture

Society of Engineering Science (SES) Board of Directors---Call for Nominations

On behalf of the Board of Directors of SES, we are soliciting nominations to fill 2 positions in the SES Board of Directors. The SES members will elect the directors from the nominees. The Board plays an important role in defining the vision of SES, organizing various SES events, managing society finances, and evaluating nominations for the SES awards. Please nominate your colleagues to serve the Board. All we need are the name of the nominee and 1-2 sentences on why you think he/she might be appropriate for the SES Board.

Sharlotte Kramer's picture

Sandia Fracture Challenge: Survey

The Sandia Fracture Challenge (SFC) was issued in December 2016, and the SFC supplemental information became available in February 2017.  The predictions are due July 15th, 2017.  We would appreciate feedback from you regarding the Challenge prior to the return of the predictions.   Please email Sharlotte Kramer (slkrame@sandia.gov) and Brad Boyce (blboyce@sandia.gov) with (1) your intent to participate in this SFC and/or (2) any comments you may have on the Challenge.

Sharlotte Kramer's picture

Sandia Fracture Challenge Update

Supplemental information for the third Sandia Fracture Challenge (SFC) is now available!  We have compiled the supplemental information promised in the original information packet and some additional information based on questions we received from participants.  The supplemental information includes electron backscatter diffraction (EBSD) data on the Challenge geometry, additional base material tests, raw DIC images and examples of DIC analyses of base material tests, and additional boundary condition information.

tigerofmahdi's picture

Coupled Thermoelasticity

Hi Dears:

I have a question about coupled thermoelasticity:

Has coupled thermoelasticity written for FGM in 2D until now???

thanks a lot

Pradeep Sharma's picture

Yong Zhu is the recipient of the 2016 Eshelby Mechanics Award for Young Faculty

It gives me great pleasure to announce the outcome of the 2016 competition for the Eshelby Mechanics Award for Young Faculty. This award is given annually to rapidly emerging junior faculty who exemplify the creative use and development of mechanics. The intent of the award is to promote the field of mechanics, especially among young researchers. The selection committee consisted of: K. Ravi-chandar (UT Austin), Huajian Gao (Brown University), G.

Sharlotte Kramer's picture

The 3rd Sandia Fracture Challenge is here!

The third Sandia Fracture Challenge is here!  We invite to you participate in this next installment of our collaborative, blind assessment of predictions of ductile fracture.  For the third SFC, we wanted to challenge the computational mechanics community to predict ductile fracture in an additively manufactured structure.

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