strain wave velocity 中文意思是什麼
strain wave velocity
解釋
應變波速-
The following results were found, i. e., the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60, then decreases gradually with increasing temperature ; meantime, there is a certain temperature effect on rock samples size
實驗發現含水率對波速影響比較大，飽和巖樣的聲波傳播速度高於不飽和巖樣的聲波傳播速度；人工預制裂紋對聲波傳播速度影響不大；單軸壓縮條件下，聲波傳播速度隨應變增加逐漸降低；在同一溫度（ 160 ）下，波速隨保溫時間的增加而逐漸降低；在對巖樣逐漸加熱情況下，初始加熱階段波速略有升高，當溫度達到60時，巖樣波速達到峰值，之後隨著溫度繼續升高其波速逐漸下降；波速隨溫度變化具有一定的尺寸效應。 -
In those experiments wave shapers have been utilized to modify the incident wave so that the condition of constant strain rate is satisfied more sufficiently. the effect of outer factors on the stress equilibrium of early stage in the specimen was analyzed, and the methods to improve the uniformity of stress in specimen at early stage were given. the elastic wave velocity of specimens can be determined by the wave shape fitting of the predicted transmitted wave with the measured transmitted wave at the early stage, furthermore, the shifting - time in shpb data processing can be determined
在shpb實驗中採用波形整形技術使入射波的上升沿變寬；分析了影響shpb實驗中試件早期應力平衡的外部因素，給出了改善早期應力均勻性的方法；採用透射波的早期預估波形與實測波形作對比的方法確定了shpb實驗數據處理中的延遲時間；因而在實驗中得到了比較準確的應力應變曲線。 -
The effects of water ratio, crack, strain and temperature on the acoustic wave velocity in granite samples were investigated systematically by means of tico, an ultrasonic concrete tester
摘要應用超聲波混凝土測試儀（ tico ） ，系統研究了含水率、裂紋、應力和溫度對花崗巖內波速傳播的影響。
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