Simulation technologies for thermal buckling in aerothermodynamically loaded thin-walled structures (D10*)

空气热动力负载薄壁结构中的热屈曲仿真技术 (D10*)

• 批准号: 317883055
• 金额: --
• 依托单位: Rektor der Universität Siegen
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/317883055?language=en
• 关键词: Simulation; technologies; thermal; buckling; aerothermodynamically

Former results of SP D6 have shown that aerothermal loads induced by high enthalpy flow in combination with unavoidable constraints for the movement of the structure might lead to undesirable localized plastic deformation and buckling phenomena. The goal of the new SP D10 is to provide the corresponding compu-tational model that considers important aspects such as the thermomechanically coupled viscoplastic be-haviour of the material as well as the interaction with the fluid flow. Furthermore the effect of thermal barrier coatings as well as the influence of oxidized surfaces on emission coefficient and lifetime shall be incorpo-rated into the model. Experimental validation will be achieved in cooperation with SP D6, D2 and D3.

SP D6以前的结果表明，由高焓流引起的气动载荷与结构运动的不可避免的约束相结合，可能导致不希望的局部塑性变形和屈曲现象。新的SP D10的目标是提供相应的计算模型，该模型考虑了材料的热力耦合粘塑性行为以及与流体流动的相互作用等重要方面。此外，热障涂层的效果以及氧化表面对发射系数和寿命的影响应纳入模型。将与SP D6、D2和D3合作进行实验验证。