Skeleton castings as a new type of spatial composite reinforcement with specific mechanical properties
Mirosław Cholewa, Tomasz Szuter
Quarterly No. 2, 2012 pages 121-125
DOI:
keywords: skeleton casting, reinforcement, mechanical properties
abstract The paper presents the research results on the dynamic load resistance of ceramic matrix composites with aluminum spatial skeleton reinforcement, particularly focused on the ability to absorb impact energy. In the considered cases, the composite composition was complemented with a liquid additive. The addition was designed to improve impact energy absorption. The matrix of the composite was simultaneously a foundry core of skeleton casting. Internal channels which reproduce i trusses were created with the use of specially designed templates. The use of ceramic shapes allowed the authors to obtain strong cores with complex geometry, which act at the same time as the composite matrix, influencing its mechanical properties. Strength tests with a dynamic load were performed. The energy absorbed by the composite material was determined. The research was conducted on a specially-designed stand. The concept of the stand was developed based on drop weight tests.