脆性

脆性英語:),是指物质受力时未有明显塑性变形就断裂的性质。脆性是和延展性相反的概念。脆性物质即使强度很高,发生脆性断裂前,也只能吸收较少能量。常见的脆性物质有陶瓷玻璃等。脆性物质失效的主要机理为脆性断裂,是构件未经明显的变形而发生的断裂。

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