small strain theory 中文意思是什麼
small strain theory
解釋
小應變理論-
The corresponding control equation is given. the control equation and boundary condition about the addiontional small deformation ' s effect caused by initial stress using virtual principal theory in cylindrical reference frame. generalized stress and strain and equivalent constitutive equation are given
第四章提出了描寫柱形薄殼中初應力的數值特徵，將應力的三維分佈轉化為二維分佈，給出相應的支配方程；在柱坐標系中，利用虛功方程建立了初應力對附加小變形影響的控制方程和邊界條件；給出了廣義應力、廣義應變及等效本構關系。 -
The theoretical calculation and explanation of strain behavior during heteroepitaxy of oxides thin films : when the lattice mismatch is relative small ( for example, batio _ 3 / srtio _ 3 with a lattice mismatch of 2. 18 % ), the growth mode of thin films is layer - by - layer, and the critical thickness and strain relaxation can be calculated or estimated by matthews - blakeslee expressions ; when the lattice mismatch is large ( for example mgo / srtio _ 3 with lattice mismatch of 8 % ), the strain relaxation process can be explained by theory of coherent strained islands
氧化物薄膜異質外延應變行為的理論預測和解釋。對于晶格失配較小的外延體系（如batio3 / srtio _ 3 2 . 18 % ） ，薄膜以層狀方式進行生長，臨界厚度和應變釋放過程可以用經典的matthews - blakeslee公式進行預測;對于晶格失配較大的體系（如mgo / srtio _ 3 8 % ） ，薄膜以島狀方式進行生長，應變釋放過程可以由彈性應變島的理論體系進行解釋。 -
If the small-ring cycloalkanes are under considerable strain as predicted by the baeyer strain theory.
如果象拜耳張力學所估計的那樣，小環的環烷烴具有相當大的張力。 -
The large strain constitute equations are derived according to nonlinear continuum mechanics, the rate of jaumann stress and the theory of boit consolidation on account of the limitation of small strain theory in hydraulic fill, soft ground and large displacement projects
考慮小變形分析法在吹填土、軟土地基和大位移問題上的局限性，從非線性連續介質力學出發，採用jaumann應力率和boit平面固結理論，推導了大變形本構方程。 -
( 2 ) because of t he variability of rock subjected to outside action, three new conceptions : postive damage basic damage and negative damage, are suggested, which can deal with the condition that rock density became large. ( 3 ) the present damage variables based on ct number mostly include ct average number of the rock without damage, which is difficult to measure, so a new damage variable, which includes the average ct number is proposed, on the other hand, strain equal theory is generalized because the one put foreword by lemaitre is not good enough to use. ( 4 ) a axial damage constitutive equation is proposed and testified. ( 5 ) with the circle times, the damage propagation laws of two different rocks, subjected to circle of freezing and thawing, are studied, and in the analysis process, traditional analysis method including average ct number and is used, some important conclusions are reached : inner damage of soft rock containing a large mount of apertures is largely propagating with the time increasement of circle, however, at the preliminary time, the hard rock containing a small mount of aperture is a little propagating, at late time, the influence become large ; ( 6 ) zone separation and statistics frequency put forward is used to analysized the three different damage propagation in the open circumstance, when they are subjected to the different circle times of freezing and thawing, in which the temperature variability is linear, different freezing rate, and different freezing temperature, and no water is supplied during the test
在研究過程中本文主要做了以下工作： （ 1 ）針對巖石損傷變化較小時，運用ct均值和方差分析不方便的缺陷，本文提出運用對ct數范圍劃分區段的方法，根據各區段統計頻率的變化規律來分析損傷擴展狀況； （ 2 ）針對巖石受到外部作用的多變性，本文提出了基準損傷，正損傷，負損傷的概念，在某種程度上考慮了巖石受到外部作用時的壓密情況； （ 3 ）現有的基於ct數的損傷變量大多需要用到巖石基體的ct均值，這實際上是很難觀測到的，因此本文建議了一個可運用巖石初始狀態ct均值的損傷變量，由於現有的勒邁特教授應變等價原理使用上的不便，本文在其基礎上進行了推廣； （ 4 ）建議了一個可用巖石初始狀態ct數和彈性模量的單軸損傷本構方程，並用算例進行了驗證； （ 5 ）對兩種不同巖石在開放環境下受到凍融循環作用且融化過程中補水時，內部損傷隨凍融循環次數增加的擴展規律進行了探討，主要運用了常規的ct均值和ct方差的分析方法進行分析，試驗發現：對于孔隙率和含水率較高，密度和強度較低的軟弱巖石，凍融循環次數對損傷結構的擴展有明顯的影響，而對于孔隙率和含水率較低，密度和強度較高的硬巖，凍融循環次數對其損傷結構擴展初期由於含水率低的原因，影響不是太大，而後期由於水補給后，含水率較高的原因，凍融影響逐漸增大； （ 6 ）運用了本文提出的區段劃分和統計頻率的方法，深入地分析了開放環境下的線性溫度變化的凍融循環次數，凍結溫度，凍結速度不同巖石作用時，其內部損傷隨凍融循環次數，凍結速度和凍結溫度變化的擴展規律，需要指出的是除了在試驗前飽水外，凍融過程中沒有補水。 -
Usually in former studies, neither the traditional small strain consolidation theory nor common large strain consolidation theory has taken account of mass change in soil during consolidation process
無論傳統的小變形固結理論還是大變形固結理論，在以前的研究中通常直接利用固體力學的相關公式，而沒有考慮固結過程中土體質量的變化。 -
Through the detailed analysis of cavity expansion theory, strain path method and finite element theory applied in jacked pile, some deficiencies are put forward. according to the analysis, some main original work are made. firstly, on the basis of strain path method ( spm ), closed - form analytical expressions of displacement fields caused by the installation of jacked pile are obtained in small strains
本文首先詳盡地分析了圓孔擴張理論、應變路徑理論、有限元理論在靜壓樁擠土效應方面存在的不足，並在此基礎上做了如下工作： 1 、基於spm法的理論基礎，在小應變假定情況下，推導了靜壓單樁周圍土體位移場的解析解。
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