| 1. | Total strain energy
总应变能 |
| 2. | I believe abaqus is able to output elastic strains and plastic strains , seperatelyly
Abaqus输出的是总应变，而不是分别输出应变的弹性部分和塑性部分。 |
| 3. | The maximum recovery strain of ti51ni49thin film is 4 . 5 % , but the plastic strain increases quickly when the total strain is more than 4 %
薄膜的最大可恢复应变为4 5 ，但塑性应变在总应变大于4后迅速增加。 |
| 4. | The stresses and strain are analyzed by marc software ; the safety factors evaluated based on displacement , yield region ( connected ) and total energy criteria
应力和应变由marc软件分析计算得到；安全系数由位移变化、屈服区连通率和总应变能变化来评价。 |
| 5. | Empirical expressions of the total longitudinal strain and the secant modulus are given . in addition , the relationships of the increasing rate of the total second - stage strain and the decreasing rate of the secant modulus with the number of cycles are obtained respectively
给出了纵向总应变、割线模量的经验公式，及其第二阶段总应变增长率、割线模量衰减率分别与疲劳寿命的经验公式。 |
| 6. | In the condition of the different confining stress and the temperature of 8 . 8 ? , dynamic strain of the asphalt concrete is very little within 100 vibration times under rather big dynamic stress , the total axial strain is only about 1 % ~ 2 % within 3000 ~ 5000 vibration times
在不同围压和8 . 8条件下，对沥青混凝土施加较大的动应力，在100振次以内所产生的动应变是很小的，即使施加3000 5000振次，轴向总应变也仅为1 2左右。 |
| 7. | Through research into the low - cycle fatigue behavior of gh4145 / sq , we found out that the control of strain at any level is not a stable course but has three obvious stages . the first stage is a rapid cyclic hardening course for any strain control
对gh4145 / sq合金在总应变幅控制下的对称拉压低周疲劳研究表明：在循环形变过程中合金主要表现为初始疲劳硬化、随后疲劳软化及最终失稳断裂三个阶段，疲劳硬化软化行为与作用应变幅相关。 |
| 8. | Based on the catastrophic characters of the whole strain energy in truss structural instability , the relationship between the whole strain energy and the stress rate in the link element was educed , and the stress rate criterion for judging the instability of truss structures was built up through analyzing the changing law of stress rate
基于杆系结构发生动力失稳时的总应变能突变特征，推导总应变能同杆单元应力变化率之间的关系，并分析应力变化率的变化规律，建立了判定系结构动力失稳的应力变化率准则。 |
| 9. | ( 1 ) the statistical damage constitutive model for rock is improved basing on the hypothesis that the strain in the rock without damage is ideal to that in the damage rock . the hypothesis that all of the stresses in damage evolution equation are effective stresses is realized , and the proplem how to couple plastic strain to damage is solved
主要工作内容如下： ( 1 )在假设无损岩石的应变和岩石总应变相等的基础上完善了岩石的统计损伤本构模型推导，实现了损伤演化方程中全部采用有效应力假设和探讨了损伤和塑性变形耦合问题。 |
| 10. | On the basis of the experimental studies of low - cycle fatigue , performed on the bhw - 35 power plant boiler drum and 12crmov pressure piping respectively , the fatigue life evaluation methods are established in this paper . all studies can be concluded as follows . p - s - n curves of bhw - 35 steel and of its weld metal are obtained with the total stain controlled low - cycle fatigue test and the probability and statistic method
本文以电厂bhw - 35钢制造的410t / h锅炉汽包和电厂12crmov压力弯管作为研究对象，在获得实验数据的基础上，建立了一套较为完整的低周疲劳寿命分析方法，主要研究内容如下：在bhw - 35钢及焊缝材料总应变控制低周疲劳试验基础上，采用概率统计分析方法对实验数据进行分析，得到母材和焊缝材料的p ? s ? n曲线。 |
