1
Fatigue Crack Growth in Aluminum Lap-Joint
Data Set
Data challenge of the 11
th
Annual Conference of the PHM Society 2019
Scottsdale, AZ
Data Brief
Fatigue experiments were conducted on aluminum lap-joint
specimens, and lamb wave signals were recorded for each specimen
at several time points (i.e., defined as number of cycles in fatigue
testing). Signals from piezo actuator-receiver sensor pairs were
reported and it was observed that these signals were directly related
to the crack lengths developed during fatigue testing. Optical
measurements of surface crack lengths are also provided as the
ground truth. The dataset is split in training and validation to
facilitate the application of data-driven methods.
Format
The data is organized by folder structures. The parent folder
contains one file and two folders. The file is named “Read Me.docx”
(this file) and has all the information for the testing description and
data explanation. One folder is named “training” and contains all
training data sets. The other folder is named “validation” and
contains all validation data set. The folders are organized by
specimens, named T1-T6 in the training folder and T7-T8 in the
validation folder. All formatting is explained in detail this file.
Credits
(Please see relevant
publications below)
Prof. Yongming Liu, Arizona State University
Dr. Tishun Peng, Gas Technology Institute
