| 1. | Rubber , vulcanized or thermoplastics - determination of tension fatigue - constant strain method
硫化橡胶或热塑性塑料.张力疲劳测定.恒定应变法 |
| 2. | The constant strain of not hearing eventually forced my father ' s early retirement at age 52
最终由于失聪而形成的持续高压迫使我的父亲在52岁时提前退休。 |
| 3. | The constant strain of not hearing eventually forced my father ' s early retirement at age 52
最终由于听不见而形成的持续高压使我的父亲在52岁时被迫提前退休。 |
| 4. | By introducing the constant strain as another basic unknown quantity besides the rigid displacement at centroid of block elements , the elasticity of bock elements can be considered and the precision are improved
引入块体的常应变作为基本未知量，从而使计算能够考虑块体的弹性，大大增加了计算的精度。 |
| 5. | The calculated results are confirmed by experiments . either the constant strain - rate experiment or the application the elastic wave inversion method can be comprehensively applied to the dynamic experimental investigation
无论恒应变率试验方法，还是弹性波反演理论的应用，都能够广泛的应用于今后动态试验中。 |
| 6. | The constant strain - rate experimentation is probed as a new experimental technique in the course of dynamic experiment . this technique got application in the experiment of wmo compression experiments and obtained the preferable raw data and experiment results
在动态试验过程中，探索恒应变率试验的新试验方法，该方法在钨钼合金动态试验中得到成功应用，获得了更好的原始数据和试验结果。 |
| 7. | In the end , we use the constitutive relations with damage and these without damage to analyze the uni - axial concrete compression experiment under different constant strain - rates , so it is validated by mechanical simulation . we find that when the strain - rate is low , we should use the constitutive relations with damage to predict ; when the strain - rate is high , we should use the constitutive relations without damage to predict
针对不同应变率下的单轴压缩实验，分别应用考虑损伤和不考虑损伤的本构关系进行力学模拟，发现应变率比较大的时候，混凝土材料可以不考虑损伤；当应变率比较小的时候，混凝土材料要考虑损伤， 。 |
| 8. | While cyclic deformation experiment under constant strain control is performed in 400 , the material shows the continuous hardening until cyclic invalidation . ( 3 ) back stress attained by kwl " s method is used to analyse the bauschinger effect during an incremental step cyclic test and cyclic deformation test under constant strain control , it is shown that back stress increases with increasing plastic strain and the numbers of cycle , and the back stress is uniform , regardless of tension or compression conditions . ( 4 ) as far as recrystallized zircaloy - 4 plate is concerned , the back stress in transverse direction is higher than that in rolling direction due to the higher schmid factor in rolling direction
对于再结晶状态的zr一4合金板材试样来说， t方向(横向)试样的背应力要高于r方向(轧制方向)的背应力，原因在于r方向的schmid因子高于t方向的schmid因子; 400下， zr一4合金的背应力要明显低于室温下的背应力;含氢200pg / g的zr一4合金的背应力大小与无渗氢的zr一4合金背应力相比，无明显区别;固溶处理后， zr一4合金的背应力大小发生了变化，在较高塑性应变下，背应力均高于固溶处理前的背应力。 |
| 9. | So it is very important to understand the cyclic deformation behavior of zircaloy - 4 . in this paper , bauschinger effect of zircaloy - 4 with different metallurgical state at room temperature and 400 ? is investigated in an incremental step test and cyclic deformation test under constant strain control . bauschinger effect during cyclic deformation is described by using back stress , which is mainly responsible for bauschinger effect ; back stress is attained by using kwl " s method
本文采用单试样逐级加载循环变形和恒应变幅循环变形试验，研究了不同冶金状态、温度、氢以及固溶处理下的zr - 4合金的bauschinger效应现象；种种结果表明，影响bauschinger效应的主要因素是背应力；本文正是从背应力的角度来分析各种状态下zr - 4合金的bauschinger效应现象；背应力的计算主要通过使用kwl方法而获得。 |
| 10. | Abstract : in this paper , rigid visco - plastic fem technique is applied to numerically analyze the factors affecting the forming time of superplastic bulging , and the regularities of forming time affected by different factors are given by examples of constant pressure and constant strain rate die - bulging of cylinder parts , all of which provides guideline for process planning in actual superplastic bulging
文摘:采用刚粘塑性有限元技术对超塑性胀形成形时间的影响因素进行了数值分析，以圆筒形零件的恒压和恒应变速率充模胀形为例，给出了不同因素对超塑性成形时间的影响规律，为超塑性胀形实际工艺设计提供了依据。 |
