商用飞机发动机外壳要求防火。该项目开发了一种基于FAA标准的耐火试验方法，并对各种复合材料层压板和三明治进行了耐火试验。使用FAA防火标准评估性能。为了评估候选材料的剩余强度能力，开发了单轴压缩试验方法。对火灾损坏的面板进行的试验与对对照（未损坏）试样进行的压缩试验进行了比较。这项工作表明，选择复合材料和结构（如三明治）是飞机发动机外壳防火结构的可行选择。

Commercial aircraft engine enclosures are required to be fireproof. This project developed a fire test method based on FAA criteria and performed fire tests on a variety of composite laminates and sandwiches. Performance was assessed using the FAA criteria for fireproofness. To evaluate the residual strength capability of the candidate materials, a uni-axial compression test method was developed. Tests performed on fire-damaged panels were compared to compression tests performed on control (undamaged) specimens. This work showed that select composite materials and constructions (e.g. sandwich) are viable options for use as fireproof structure in aircraft engine enclosures.