Home / Standards / GB/T 45471-2025 GB/T 45471-2025 Active Test method for mode Ⅲ interlaminar fracture toughness of carbon fiber reinforced composite materials—Edge crack torsion method 碳纤维增强复合材料Ⅲ型层间断裂韧性的测定 边缘裂纹扭转法 Standard Type GBT ICS 59.100.20 CCS Q 53 Status 现行 Issue Date 2025-03-28 Implementation 2025-10-01 Responsible Dept 国家标准委 Drafting Unit N/A