Fatigue behaviour of thick-walled GFRP-Laminates under tension, compression, bending and multiaxial loads

厚壁 GFRP 层压板在拉伸、压缩、弯曲和多轴载荷下的疲劳行为

• 批准号: 428326921
• 负责人: Professor Dr.-Ing. Sebastian Heimbs, since 9/2022
• 金额: --
• 依托单位: Institut für Flugzeugbau und Leichtbau
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/428326921?language=en
• 关键词: Fatigue; behaviour; thick; walled; GFRP

This proposal investigates the strength of thick-walled GFRP-laminates under static and cyclic loading. It is the main hypothesis that the well-known drop in static strength under compression thick-walled (which is partly also found under tension) will also be found under cyclic loading. This hypothesis is checked by means of a comprehensive test program, comprising tension, compression, bending and multi-axial loading. It is complemented by high-fidelity simulations. These models reflect the actual morphology of the internal structure of the specimens. The program may only be accomplished in close interaction with the partners: ILK (for specimen manufacturing), IPC (for a complementary test program) and IKT (non-destructive inspection). The IFL part of the tests is limited to room temperature.

该提案研究了厚壁 GFRP 层压板在静态和循环载荷下的强度。主要假设是，众所周知的厚壁压缩下静强度下降（在拉伸下也有部分发现）在循环载荷下也会出现。该假设通过综合测试程序进行检验，包括拉伸、压缩、弯曲和多轴载荷。它辅以高保真模拟。这些模型反映了标本内部结构的实际形态。该计划只能在与合作伙伴密切合作的情况下完成：ILK（用于样本制造）、IPC（用于补充测试计划）和 IKT（无损检测）。测试的 IFL 部分仅限于室温。