Fragile airfoil

An airfoil for a gas turbine engine is generally provided. The airfoil defines a span extending between the root and the tip, the airfoil further defining a chord extending between the leading edge and the trailing edge at each point along the span. Further, the airfoil includes at least one frangible airfoil portion, a residual airfoil portion adjacent to the at least one frangible airfoil portion, and one or more regions. The one or more regions may include a plurality of cavities, where at least one or more cavities of the plurality of cavities include inclusions having one or more materials. 通常提供一种用于燃气涡轮发动机的翼型件。翼型件限定在根部和尖端之间延伸的跨度，翼型件进一步限定在沿着跨度的每个点处在前缘和后缘之间延伸的弦。此外，翼型件包括至少一个易碎翼型件部分、与至少一个易碎翼型件部分相邻的残余翼型件部分，以及一个或多个区域。一个或多个区域可包括多个空腔，其中多个空腔中的至少一个或多个空腔包括内含物，内含物具有一种或多种材料。