結構物各部件失效的機率 - 土木
By Faithe
at 2011-09-14T00:55
at 2011-09-14T00:55
Table of Contents
討論結構物整體或部件的時候
通常是討論材料強度跟結構強度
材料強度有各種標準測試去量測極限強度或疲勞強度
結構強度則根據材料的力學強度參數搭配結構分析去估算
這樣取得的數值都是固定值
或者說跟機率無關
請問是否有從機率觀點去評估材料跟結構強度的?
畢竟工廠批量出貨的時候根本不可能測試每一單件材料
的強度值
批量出貨大概也不可能確定同一出料的強度都是均一值
頂多就是抽樣確認查到驗收標準
這樣要估算結構強度顯然有不確定因素
有怎樣的方式把種種不確定因素一起考慮進去估算結構強度的方法嗎?
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