The asymmetric double cantilever beam (ADCB) test was used to measure the fracture energy of a honeycomb/carbon-epoxy sandwich panel under mode I loading. A data reduction scheme based on equivalent crack length theory was developed for this case. The experimental Resistance-curves were obtained using exclusively data ensuing from the load-displacement curves avoiding the usual and non-rigorous crack length monitoring during the test. Furthermore, a mode partitioning methodology lying on cohesive zone modelling was adopted, aiming to estimate the fracture energy under mode I loading from the total fracture energy under mixed-mode I+II ensuing from the ADCB test. Numerical simulations of the ADCB test considering cohesive zone modelling were performed for the sake of validation of the followed procedure.

非对称双悬臂梁（ADCB）试验用于测量蜂窝/碳-环氧树脂夹芯板在模式 I 加载下的断裂能。针对这种情况，开发了一种基于等效裂纹长度理论的数据缩减方案。实验阻力曲线仅使用载荷-位移曲线得出的数据获得，避免了测试期间通常和非严格的裂纹长度监测。此外，采用基于内聚带建模的模式划分方法，旨在从ADCB测试得到的混合模式I+II下的总裂缝能量估计模式I加载下的裂缝能量。为了验证以下程序，进行了考虑内聚区建模的 ADCB 测试的数值模拟。