Home / Standards / GB/T 47409-2026 GB/T 47409-2026 Upcoming Test method for mixed mode Ⅰ-mode Ⅱ interlaminar fracture toughness of carbon fiber reinforced composites—Double cantilever beam-uneven bending moment 碳纤维增强复合材料Ⅰ型-Ⅱ型混合层间断裂韧性的测定 双悬臂梁非对称弯曲法 Standard Type GBT ICS 59.100.20 CCS Q 53 Status 即将实施 Issue Date 2026-03-31 Implementation 2026-10-01 Responsible Dept 国家标准委 Drafting Unit N/A