疲劳曲线

According to the maximum likelihood method inferred, the fatigue test of the incomplete penetration welded joint s was conducted, and the P S N curves were obtained.

按照得到的极大似然方法，进行了含未焊透缺陷接头的疲劳试验，得到了相应的P S N曲线。

An engineering procedure for estimating crack growth behavior and fatigue lives of semielliptical surface cracks at weld toe s in complex stress fields was proposed based on a database of stress intensity factors and the elementary modes method developed by author.

以作者建立的焊趾半椭圆表面裂纹应力强度因子数据库以及复杂应力场中焊趾半椭圆表面裂纹前缘应力强度因子分布计算的基本模式法为基础，给出了复杂应力场中焊趾表面裂纹在疲劳扩展过程中形态变化规律及寿命的工程分析方法；并用这个方法计算了一些典型焊接接头在一些典型的外加应力场和残余应力场中的裂纹形态发展曲线。

At the end, we discuss its engineering significance to simplyfying fatigue test in order to obtain P-S-N curve of parts.

文中最后讨论了该方法对旨在获得零件P-S-N曲线的疲劳试验的简化作用和工程意义。

By a series of bending cyclic tests of wood-bamboo laminate under 80%, 75%, and 70% stress levels, transformation laws' curves of the damage variable were measured at three different maximum stresses.

通过对竹木复合层合板在80%、75%和70% 3种应力水平下的纯疲劳弯曲试验，得出其损伤变量变化规律的实验曲线。

This paper presents a curve of influence of vibratory stress relief on fatigue life of welded structures.

通过试验，给出了低应力预处理对金属焊接接头疲劳寿命影响的规律曲线。

R. ChinaAbstract:Objective To study antiradiation and antifatigue effects of a soft capsule mainly composed of cistanche,acanthopanax senticosus and jujube. Methods The mice were divided into four groups and then orally given soft capsule at doses of 0 .0g/kg.bw, 0.18g/kg.bw, 0.36g/kg.bw, 1.08g/kg.bw for a successive period of 30 days.The burden-swimming time , hepatic glycogen, serum urea nitrogen, lactic dehydrogenase of mice were observed. The mice were divided into four groups and then was orally given soft capsule at doses of 0 .0g/kg.bw, 0.18g/kg.bw, 0.36g/kg.bw, 1.08g/kg.bw for a succession of 21 days.

设立3个实验组，每天分别以0.18、0.36和1.08g/kg·bw剂量的软胶囊给小鼠灌胃一次，同时设立空白对照组，连续灌胃30d后，测定小鼠的负重游泳时间、肝糖原含量、运动后血清尿素水平、血乳酸曲线下面积等指标，以测定其抗疲劳作用；每天以上述剂量给小鼠灌胃，同时设立一个辐射对照组，连续灌胃21d后，不同指标选择不同的照射剂量，各组均以同一剂量γ射线全身照射一次，照射后继续给予样品。

Objective To study antiradiation and antifatigue effects of a soft capsule mainly composed of cistanche,acanthopanax senticosus and jujube. Methods The mice were divided into four groups and then orally given soft capsule at doses of 0 .0g/kg.bw, 0.18g/kg.bw, 0.36g/kg.bw, 1.08g/kg.bw for a successive period of 30 days.The burden-swimming time , hepatic glycogen, serum urea nitrogen, lactic dehydrogenase of mice were observed. The mice were divided into four groups and then was orally given soft capsule at doses of 0 .0g/kg.bw, 0.18g/kg.bw, 0.36g/kg.bw, 1.08g/kg.bw for a succession of 21 days.

设立3个实验组，每天分别以0.18、0.36和1.08g/kg·bw剂量的软胶囊给小鼠灌胃一次，同时设立空白对照组，连续灌胃30d后，测定小鼠的负重游泳时间、肝糖原含量、运动后血清尿素水平、血乳酸曲线下面积等指标，以测定其抗疲劳作用；每天以上述剂量给小鼠灌胃，同时设立一个辐射对照组，连续灌胃21d后，不同指标选择不同的照射剂量，各组均以同一剂量γ射线全身照射一次，照射后继续给予样品。

Hler curve.

hler安全边界曲线，提出一种导线疲劳试验振动量级的计算方法。

Starting with the toughening of ceramics, the subcritical crack growth model on monotonical loads was set up for the first time, and the V—K curves in the subcritical crack growth process and the effects on them were obtained by use of computer simulation.

首次从材料增韧入手，建立了单向载荷形式下亚临界裂纹扩展模型，并利用计算机数值计算获得裂纹扩展过程中V—K曲线及其影响因素，由此对多晶陶瓷材料疲劳现象的本质进行了分析。

The fatigue life of the newly developed drill rod is also predicted according to the S-N curve of drill steel and its theoretical loading spectrum.

同时，结合材料的S-N曲线和钎杆的理论载荷谱，运用电算程序，预估了新型结构钎杆的抗疲劳寿命。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。