Investigation on the bending and tensile performances of the T-shaped hook-connected structure made of laminated composites and TC4 alloy

Publication date: Available online 30 August 2019Source: Polymer TestingAuthor(s): Hongjian Zhang, Junhua Guo, Weidong Wen, Haitao CuiAbstractIn this work, a T-shaped hook-connected structure was designed, formed by hooking a T-shaped plate made of TC4 alloy and a bottom plate made of laminated composites. As a simulator of blade-casing connection structure, its bending and tensile properties are very important. Therefore, experiments on these two properties of this structure were performed, and the experimental loads were applied on the web of the T-shaped plate. Experimental results showed that the delamination damage extends from the groove-edge to groove-middle in bending process, but the delamination damage extends from the groove-middle to groove-edge in tensile process. Then, bending and tensile properties and damage processes of the T-shaped hook-connected structure were simulated based on the progressive damage approach. Compared with experimental results, the maximum error is less than 15%, and the failure modes are similar.

Source: Polymer Testing - September 4, 2019 Category: Chemistry Source Type: research