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橢圓表面裂紋應(yīng)力強(qiáng)度因子數(shù)據(jù)庫以及復(fù)雜應(yīng)力場中焊趾半橢圓表面裂紋前緣應(yīng)力強(qiáng)度因子分布計(jì)算的基本模式法為基礎(chǔ)精品国产国语对白AⅤ，給出了復(fù)雜應(yīng)力場中焊趾表面裂紋在疲勞擴(kuò)展過程中形態(tài)變化規(guī)律及壽命的工程分析方法老外美女视频A片；并用這個(gè)方法計(jì)算了一些典型焊接接頭在一些典型的外加應(yīng)力場和殘余應(yīng)力場中的裂紋形態(tài)發(fā)展曲線日韩视频第一区。

What is taken account of includes the effects of the material, geometrical shape, manner of loading, ratio of cycle stress, residual stress and short crack in weld toe on fatigue strength.

該模型考慮了材料欧美色淫淫、幾何形式、荷載形式免费看Av黄片、應(yīng)力比涩涩视频免费观看、尺寸效應(yīng)、殘余應(yīng)力及焊趾根部短裂紋等因素對疲勞強(qiáng)度的影響国产在线观看美乳AV。

Back in the early 60s, people experiment with mice showed that mice given caffeine drinks can occur鄂rats crack, toe or foot deformities.

早在60年代初期人人操人人骚，就有人用小鼠做試驗(yàn)，結(jié)果證明給小鼠咖啡因飲料可使仔鼠發(fā)生鄂裂95视频在线免费观看、趾或腳畸形一二三四日本高清视频动漫。

In fact, because Hymen hole of the circle is very small,great majority female is in after first time sexual intercourse can contain one little toe only commonly, the meeting after the penis is inserted causes Hymen to be in or much place is torn, bring about first sexual life bleeds, later as coital number increase, vaginal mouth also increases gradually, hymen crack also assumes much office or show dated sex loss.

事實(shí)上，絕大多數(shù)女性在第一次性交后由于圓形的處女膜孔很小一般僅能容入一小指国产三级精选国产麻豆，陰莖插入后會致使處女膜一處或多處被撕破深夜欧美日韩福利，導(dǎo)致首次性生活出血麻豆AV在线网站，以后隨著性交次數(shù)增多91网黄色在线观看，陰道口也逐漸增大男人的天堂一级片，處女膜裂痕也呈多處或呈陳舊性損傷。