^Experimental Study on Acoustic Emission Process and Its Self-Similarty of Concrete Material
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摘要: 將對材料聲發射的研究同對力學過程的研究、材料斷裂損傷等破壞過程的研究相結合,提出了聲發射過程的概念。在此基礎上,進一步給出了定量考察聲發射過程自相似性的自相似特征函數.測試結果分析表明,混凝土試塊在單軸壓縮過程中,聲發射過程的自相似程度隨著應力狀態的變化而變化.Abstract: The study on acoustic emission (AE) of concrete material is combined to the studies on mechanical process and fracture damage, and the conception of AE process is put forward. On this basis a quatitative function for analysing the self-similarity of AE process has been developed.The experimental results show that the values of the self-simi-larity function of the AE process in concrete material vary with the state state during uniaxial compression.
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Key words:
- concrete material /
- acoustic emission process /
- self-similarity
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