Supplemental data to the PhD Thesis: Fatigue after impact behavior of carbon fiber reinforced plastics

This research database supplements the Ph.D. Thesis 'Fatigue after impact behavior of carbon fiber reinforced plastics'. <br>This repository contains experimental data collected during compression fatigue after impact (CFAI) tests on carbon fiber-reinforced plastics (CFRP). Digital image correlation, periodic ultrasound inspection, and acoustic emission monitoring were applied during the tests.<br>In addition to the CFAI tests, the results of fatigue tests conducted on surrogate impact damage (created using PTFE inserts ) are presented in the database.<br>In the thesis linked to this database, a preliminary analysis based on strain energy release rate profiles was conducted to evaluate the most probable starting points of delamination propagation in fatigue after impact. This was done by virtual crack closure technique (VCCT) analysis withsuppressed propagation on Abaqus cae. The numerical results are presented in the respective folder of this database.<br>Dataset Structure:The database is organized into three main folders:1. (/CFAI_tests) This folder contains experimental data collected from compression after impact fatigue tests. The data includes measurements, observations, and relevant documentation for each test.2. (/PTFE_surrogates_tests)This folder contains data from experiments conducted on surrogates to simulate fatigue after impact using PTFE inserts. The data includes experimental setups, test results, and analysis.3. (/Numerical_results)This folder contains numerical simulations and corresponding results from computational models related to PTFE_surrogates_tests.<br>How to Use:To access the data and files in this repository, navigate to the respective folders and explore the contents. Each folder contains a README file providing information about the data and files contained within.For any questions or assistance, please contact [e-mail]<br>

本研究数据库为博士学位论文《碳纤维增强复合材料冲击后疲劳行为》提供补充支撑。
本仓库包含针对碳纤维增强复合材料（Carbon Fiber Reinforced Plastics, CFRP）开展的冲击后压缩疲劳（Compression Fatigue After Impact, CFAI）试验所采集的实验数据，试验过程中采用了数字图像相关法、周期性超声检测法以及声发射监测技术。
除冲击后压缩疲劳试验外，本数据库还收录了采用聚四氟乙烯（Polytetrafluoroethylene, PTFE）插片制备替代冲击损伤试样开展的疲劳试验结果。
在与本数据库关联的博士学位论文中，研究者基于应变能释放率分布曲线开展了初步分析，以研判冲击后疲劳过程中分层扩展最可能的起始位置；该分析依托Abaqus CAE平台，采用抑制裂纹扩展的虚拟裂纹闭合技术（Virtual Crack Closure Technique, VCCT）完成。相关数值计算结果收录于本数据库的对应文件夹中。
数据集结构：
本数据库分为三个主文件夹：
1. (/CFAI_tests) 该文件夹收录了冲击后压缩疲劳试验的采集数据，涵盖各项试验的测量结果、观测记录及相关文档资料。
2. (/PTFE_surrogates_tests) 该文件夹收录了采用聚四氟乙烯插片模拟冲击损伤并开展冲击后疲劳试验的相关数据，涵盖试验装置、测试结果及分析内容。
3. (/Numerical_results) 该文件夹收录了与PTFE插片替代试验相关的数值仿真模型及其对应计算结果。
使用说明：
如需获取本仓库中的数据与文件，请跳转至对应文件夹浏览内容。每个文件夹均附带README文件，用于说明该文件夹内的数据与文件详情。
如有任何疑问或协助需求，请联系邮箱[e-mail]