| 1. | Study on dangerous cracking depth of mine freezing shaft
冻结立井的破裂危险深度研究 |
| 2. | The application of single plane acoustic - wave method in detecting mass concrete crack depth
单面平测法在大体积混凝土裂缝检测中的应用 |
| 3. | Utilizing the principle of the smoothshaft to open 0 . 4 mm crankshaft to the width of crack : ( 1 ) when it compares with one position crack , crankshaft natural frequency as crack depth than increase and reducing constantly
利用光轴的原理对裂纹宽度为0 . 4mm的曲轴进行研究得出： ( 1 )裂纹同一位置比时，曲轴固有频率随着裂纹深度比的增大而不断减小。 |
| 4. | Additionally , the experiment also studies the effect of crack depth on reinforced concrete beams . the result indicates : whatever adhesive mode is taken , it is true that the deeper the crack is , the more notable the effect is
另外试验还对裂纹深度对加固效果的影响进行了分析，结果表明：不论采用什么样的粘结方式加固，裂纹深度越大，则加固的效果就越明显。 |
| 5. | Calculations of tearing energy of different crack depths and different loads have been done for double shear testpiece with interface cracks . at last , the relationship between tearing energy and crack depth has been given , so has the relationship between tearing energy and load
根据有限元结果计算出不同裂纹深度、不同载荷下的撕裂能,分析了试件的撕裂能与裂纹深度与载荷的关系。 |
| 6. | Curvature mode can be used to carry out qualitative analysis to damage degree of structure . experiment shows that curvature mode value will increase with the increase of the crack depth . it is conform completely with the theory
实验表明，随着裂纹深度的增大(也即损伤程度的增大) ，曲率模态值也随之增大，这与理论是完全相符的； ( 3 )在保证测量精度的前提下，该方法可用于工程实际的应用中。 |
| 7. | ( 3 ) the contact model is used to simulate the crack . on the basis of project , the evolution of crack opening and crack depth related to loads such as hydrostatic pressure and temperature are studied using numerical simulation approach , and the load effect on the crack evolution is discussed
( 3 )用接触模型模拟裂缝，结合工程实际，应用数值仿真分析方法研究裂缝开度和开裂深度随外荷载(水压、温度等)的演变规律，分析了裂缝演变的荷载效应。 |
| 8. | A static and a transient analysis of an embedded crack in a long elastic strip are carried out . the results are approximate to the ones that existed . and the effects of the factors including the crack configuration , the crack depth , the strip length and the strip thickness on the transient response are discussed
对含内埋椭圆裂纹的板条进行了静态和瞬态分析，得到的结果与已有的解吻合良好，对影响瞬态响应的因素如裂纹形状、裂纹深度、板条长度、板条厚度做了分析比较。 |
