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Welcome to the ERSI Analysis & Test committee website. A list of the current and previous round robin activities are listed below, along with all the associated files available for download.
Welcome to the ERSI Analysis & Test Committee website.  


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A list of the current and previous round robin activities are listed below, which will link to the corresponding site with all the associated files available for download.
|style="background-color:#f9540e; text-align:center; vertical-align:middle" |'''Stress Intensity Factor Round Robin (2021)'''
 
|-
* 2025 A-10 Cx [https://residualstress.org/images/b/bd/A-10_Cx_Dataset_-_ERSI_Blind_Predictions_r2vf.pptx Dataset]
| style="text-align:left'" | '''''Objective:''' The primary objective of the Stress Intensity Factor (SIF) round robin was to evaluate differences between available SIF solutions for a single corner crack at a fastener hole with remote uniform tension loading. The evaluations included not only the root SIF solution but any corrections to account for single vs multiple cracks, finite width, and hole offset. These solutions were compared to explicit Finite Element Analysis (FEA) results of each case. Any findings were intended to drive improvements to solutions available to the fracture mechanics community.''
* [[2023 Boeing IRAD Testing|'''2023 Boeing IRAD Testing''']]
|-
* '''[[2023 Validation of Fatigue Crack Growth Modeling Solutions using Measurements Collected on API X65 Piping Specimens]]'''
|
* '''[[2022 Interference Fit Fastener Round Robin]] ''(in-work)'''''
*[https://residualstress.org/images/3/38/ASIP_Conference_Presentation_ERSI_SIF_Round_Robin.pdf ASIP Conference Presentation_ERSI SIF Round Robin.pdf]
* '''[[2022 Walker-Newman IRAD|2022 Walker/Newman IRAD]] ''(in-work)'''''
*[https://residualstress.org/images/9/92/ERSI-2021-01_Stress_Intensity_Comparison_Round_Robin_-_Report_%26_Data.pdf ERSI-2021-01 Stress Intensity Comparison Round Robin & Data.pdf]
* '''[[2022 Cx Variability Round Robin]]'''
*[https://residualstress.org/images/0/0c/ERSI-2021-01_Stress_Intensity_Comparison_Round_Robin_r0vf.pdf ERSI-2021-01 Stress Intensity Comparison Round Robin.pdf]
* '''[[2022 Boeing Spectrum Challenge]]'''
*[https://residualstress.org/images/6/6c/ICAF2023_ERSI_Final.pdf ICAF2023_ERSI_Final.pdf]
* '''[[2021 Stress Intensity Factor Round Robin]]'''
*[https://residualstress.org/images/c/c3/SIF_Round_Robin_Data_Summary_r0vf.xlsx SIF Round Robin Data Summary.xlsx]
* '''[[2021 AFGROW Workshop Round Robin]]'''
*[https://residualstress.org/images/3/3b/Pathway_to_Improved_SIF_Solutions_r0vf.pdf Cross-Comparisons of Stress Intensity Factors from Various Sources - The Pathway to Improved SIF Solutions.pdf]
* '''[[2019 DST Assist Wide Plate Spectrum Challenge]]'''
*[https://residualstress.org/images/3/3b/SIF_Comparison_matrix_-_ERSI_Round_Robin.pdf SIF Comparison matrix - ERSI Round Robin.pdf]
* '''[[2019 Interference Fit Fastener Round Robin]]'''
|}
* '''[[2017 Cx Round Robin]]'''
{| class="wikitable" style="width: 50%;"
* '''[[2017 AFGROW Workshop Round Robin]]'''
|+
 
|style="background-color:#f9540e; text-align:center;vertical-align:middle " |'''AFGROW Workshop Round Robin (2017)'''
 
|-
Members of the Analysis & Test Committee have organized crack growth rate data from the AFGROW Material Database (AFMAT) for 5 aluminum alloys in lab air (LA), dry air (DA), and low humidity air (LHA) conditions. Those data are available for download using the links below.  
|'''''Objective:''' The purpose of this round robin exercise is to determine the variability of users, given the same loading spectrum, material data, and Initial Flaw Size (IFS) to predict the evolution of the crack front shape and the total life of a given geometry using the AFGROW framework as the life prediction tool. As noted below, certain aspects of the AFGROW framework will be provided for common use by each participant, and others will be left to the user's discretion. It is important that each participant follow this guidance so that variability in the predictions is limited to the aspects left to user discretion. Test data from this Round Robin will be presented at the 2017 AFGROW Workshop along with predictions made by each participant. Each participant is invited to give a short presentation (10 minutes) outlining the pertinent details of their analyses. A group discussion will follow to help identify which analysis options worked best for this study, and what improvements to AFGROW may be helpful in the future. The results will be published on the AFGROW Web Page following the Workshop in a manner that will not identify who performed each prediction, but individuals will be provided with a key to know their results as they compare to the group.''
 
|-
* [https://residualstress.org/images/6/69/AFMAT_AA2024T3.xlsx 2024-T3, -T351]
|
* [https://residualstress.org/images/7/75/AFMAT_AA2024T3511.xlsx 2024-T3511]
*[https://residualstress.org/images/3/38/ASIP_Conference_Presentation_ERSI_SIF_Round_Robin.pdf ASIP Conference Presentation_ERSI SIF Round Robin.pdf]
* [https://residualstress.org/images/2/23/AFMAT_AA7075T6.xlsx 7075-T6, -T651]
*[https://residualstress.org/images/9/92/ERSI-2021-01_Stress_Intensity_Comparison_Round_Robin_-_Report_%26_Data.pdf ERSI-2021-01 Stress Intensity Comparison Round Robin & Data.pdf]
* [https://residualstress.org/images/9/9c/AFMAT_AA7075T73.xlsx 7075-T73]
*[https://residualstress.org/images/0/0c/ERSI-2021-01_Stress_Intensity_Comparison_Round_Robin_r0vf.pdf ERSI-2021-01 Stress Intensity Comparison Round Robin.pdf]
* [https://residualstress.org/images/d/d7/AFMAT_AA7175T74.xlsx 7175-T74]
|}
 
A Cx-related literature review summary has been compiled and can be accessed here: [https://residualstress.org/images/f/f6/Cx_Hole_Literature_Combined.xlsx Cx Literature Review Summary]
 
 
The Analysis & Test Committee has also formed sub-groups within the committee to address specific focus areas, which can be found here: [[Sub-groups]]

Latest revision as of 01:39, 7 May 2026

Welcome to the ERSI Analysis & Test Committee website.


A list of the current and previous round robin activities are listed below, which will link to the corresponding site with all the associated files available for download.


Members of the Analysis & Test Committee have organized crack growth rate data from the AFGROW Material Database (AFMAT) for 5 aluminum alloys in lab air (LA), dry air (DA), and low humidity air (LHA) conditions. Those data are available for download using the links below.

A Cx-related literature review summary has been compiled and can be accessed here: Cx Literature Review Summary


The Analysis & Test Committee has also formed sub-groups within the committee to address specific focus areas, which can be found here: Sub-groups

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