Purdue University

 

Damage Mechanics Challenge

December 1st, 2021 - May 15, 2022

Damage Mechanics Challenge

In February 2019, a workshop was held at Purdue University to gather computational scientists and experimentalists to define and launch a numerical challenge to predict damage evolution and signatures of failure in rock.  At the workshop, participants 

(1) presented their computational approach for numerical simulation of damage; 

(2) participated in the design of a challenge problem that will be compared to laboratory experimental data on samples designed through additive manufacturing methods (e.g. 3D printing) to fail in controlled ways and with increasing complexity;

(3) defined repeatable and unbiased metrics to quantitatively assess and measure the quality of the theoretical and data-driven models, given the significant influence of inherent uncertainty and variability on the onset and modes of failures.  

The challenge is now open.  The details of the challenge, how to obtain calibration data and how to submit results to the competition can be found at

https://purr.purdue.edu/groups/damagemechanicschallenge

Important dates:

12/01/2021– Benchmark dataset and challenge information posted on website listed above.

1/15/2022 – Online Forum (11 AM EST - New York City Time) with challenge hosts to address questions (to register for the forum please send an email to Laura Pyrak-Nolte ljpn@purdue.edu). If you can't attend the forum, please email questions to Laura Pyrak-Nolte. A recording of the forum and a list of questions is posted on Question & Answer page. 

4/15/2022 – Abstract submission for workshop (On Comparison to Calibration Data Set)

5/15/2022 – Submission of results by participants

6/25/2022 – Workshop where calibration data and participants solutions are compared (Hybrid Workshop)

Abstracts of 250-500 words, in English, can be submitted to your challenge account. Abstracts should include a brief description of the numerical method, results and other comments on your results. Workshop Fee:  $75 and students are free.

12/13/2022 -  The results of the code comparison to the challenge data set and presentations by participants on their findings will occur at the Annual Fall Meeting of the American Geophysical Union in Chicago, Illinois in the following sessions on Tuesday December 13, 2022:

NG22A Fractures, Fracturing, and Fluid Flow: Validation Data Sets, Field & Laboratory Observations, and Computational Challenges I Oral

NG24A Fractures, Fracturing, and Fluid Flow: Validation Data Sets, Field & Laboratory Observations, and Computational Challenges II Online Poster Discussion

NG25C Fractures, Fracturing, and Fluid Flow: Validation Data Sets, Field & Laboratory Observations, and Computational Challenges III Poster 

04/11/2023 - A link to data set from the challenge geometry is now posted on the challenge website

Organizers:

Laura J. Pyrak-Nolte, Purdue University 

Antonio Bobet, Purdue University

Hongkyu Yoon, Sandia National Laboratories 

Liyang Jiang, Purdue University

Joseph P. Morris, Lawrence Livermore National Laboratory

 

For inquiries, please send an email with subject line DMC to either:  Laura J. Pyrak-Nolte (ljpn@purdue.edu) or Joe Morris (morris50@llnl.gov).

Acknowledgment: Office of the Provost and the Office of the Executive Vice President for Research and Partnerships, Purdue University; National Science Foundation CMMI 1932312.

DamageFigure