作者: L. Guerra Rosa , J. Cruz Fernandes , B. Li
DOI: 10.1016/J.TAFMEC.2015.09.002
关键词: Mechanical engineering 、 Weibull distribution 、 Reliability engineering 、 Solar furnace 、 Stress (mechanics) 、 Brittleness 、 Fracture (geology) 、 Factor of safety 、 Materials science 、 Concentrated solar power 、 Finite element method
摘要: Abstract Due to the importance of glass components in Concentrated Solar Power (CSP) systems, an integrated assessment procedure conceived facilitate design intrinsically brittle component, limiting amount calculations, is presented. Since fracture strength materials depends on size and distribution flaws as well duration loading, conventional approaches are generally very conservative large safety factors often used. However, these somewhat arbitrary not satisfactory, because it clear what true factor really is. In this paper, firstly reviewed discussed advanced methods characterise glass. Then, based Weibull statistical method resulting probabilistic theory weakest link, a new modelling framework proposed consider different possible failure mechanisms (over-loading stress corrosion induced failure). way, effect multi-axial (including contact between component mount assembly) considered. The for structural elements developed implemented post-process finite element analysis. demonstrated trough application example: window be used solar furnace reaction chamber.