Numerical and Experimental Data for Crack Evolution and Debonding in Low-Interfacial-Toughness Coatings

This dataset contains the numerical and experimental data supporting the study“Crack evolution analysis in coatings with low interfacial toughness using a coupled CZM–XFEM model”.The data include:<br>1. CZM–XFEM numerical simulation results for interfacial debonding under shear loading.2. Stress distribution, energy release rate, SDEG evolution, and crack propagation paths from 3D and 2D XFEM models.3. Experimental shear adhesion measurements for PTFE-coated substrates with different interfacial toughness levels.4. Three-point bending fracture data illustrating the transition from interfacial debonding to bulk ice fracture.The dataset enables reproduction of the key findings in the manuscript, including:- Nonlinear dependence of the critical shear debonding force on coating stiffness.- Toughness-governed failure mode transition under bending loads.- Design window determination for passive de-icing (E &lt; 15 MPa, t &gt; 300 μm).All data are provided in their original formats and can be used for further analysis,validation, or comparative studies involving interfacial fracture mechanics and anti-icing coatings.

本数据集包含支撑研究论文《采用耦合CZM–XFEM模型的低界面韧性涂层裂纹演化分析》的数值与实验数据。数据内容如下：
1. 剪切载荷作用下界面脱粘的CZM–XFEM数值模拟结果；
2. 三维与二维XFEM模型所得的应力分布、能量释放率、SDEG演化及裂纹扩展路径；
3. 不同界面韧性等级的聚四氟乙烯（PTFE）涂层基底的剪切黏附实验测量数据；
4. 展示从界面脱粘到本体冰断裂转变过程的三点弯曲断裂数据。

本数据集可复现该论文的关键研究发现，包括：
- 临界剪切脱粘力随涂层刚度的非线性依赖关系；
- 弯曲载荷下由韧性主导的失效模式转变；
- 被动除冰设计窗口的确定（弹性模量E < 15 MPa，涂层厚度t > 300 μm）。

所有数据均以原始格式提供，可用于涉及界面断裂力学与防冰涂层的进一步分析、验证或对比研究。