2026-10-13T08:35:03Z https://www.scidb.cn/oai

10.57760/sciencedb.nbsdc.00079 2024-09-05T10:26:54Z

2024-09-05 Dataset on interlaminar fracture toughness of wing-feather-inspired fiber-reinforced composites doi:10.57760/sciencedb.nbsdc.00079 en Mechanical test of Mode I and Mode II Interlaminar fracture toughness (IFT)The sample preparation and tests of GIC and GIIC were according to ASTM D5528-13 and HB7403-96. A standard double-cantilever beam (DCB) specimen with a size of 180 mm (length) × 25 mm (width) × 3 mm (thickness) was used to measure GIC. The pre-crack made by PVDF film was 50 mm in length. An end notch flexure (ENF) test specimen with 140 mm (length) × 25 mm (width) × 3 mm (thickness) was used to measure GIIC. The pre-crack made by PVDF film was 40 mm in length.For Mode I test, the sample was clamped on a universal testing machine and was loaded at a rate of 2 mm/min. Critical load (P), displacement of loading point (δ) and crack length (a) were recorded during the test. Then the load-displacement curve was plotted. The recorded data was used to calculate GIC. Similarly, for the Mode II test, three-point ENF tests were carried out. The loading rate was 2 mm/min. The load-displacement curve was plotted for further analysis. At least five specimens of each kind of CFRP composites were tested. Composite laminate; Interlaminar toughening; Hierarchical structure Wenda Song You Chen Zhengzhi Mu Yufei Wang Zhiyan Zhang Ze Wang Linpeng Liu Binjie Zhang Yujiao Li Bo Li Dashun Zhang Junqiu Zhang Shichao Niu Zhiwu Han Luquan Ren RESTRICTED dataset http://www.doi.org/10.1016/j.compositesb.2022.109827 Science Data Bank