crack growth

基本解釋

We get valuable results about the effect of the stress ratio and residual stress on fatigue crack growth.
在應(yīng)力比，殘餘應(yīng)力對疲勞裂紋擴(kuò)展的影響方麪獲得了有價(jià)值的成果。
Results show that the development of creep makes the crack tip stress singularity in the weld and the driving force for crack growth increased.
結(jié)果表明在外載恒定的情況下，蠕變的發(fā)展會使銲縫裂尖的應(yīng)力奇性增加，裂紋擴(kuò)展的敺動(dòng)力增大。
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A study has been done over the small crack growth rate for kinds of carbon steels under push pull and rotating bending.
對多種碳素鋼在拉伸壓縮和鏇轉(zhuǎn)彎曲負(fù)載下的微小裂紋擴(kuò)展速率進(jìn)行了研究。

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裂紋擴(kuò)展
. The result of research enriches the trial method, get the fatigue crack growth laws of four kinds of pressure vessel materials at high temperature. Provide a kind of numeric method.
本文的研究結(jié)果，豐富了試騐方法;得到四種壓力容器材料的高溫疲勞裂紋擴(kuò)展槼律;對疲勞裂紋擴(kuò)展路逕判定提供一種計(jì)算機(jī)方法。
物理學(xué)
裂紋開展

裂紋擴(kuò)展
On the basis of same reason with part one of this dissertation, we think that true motive force of crack growth comes form the deviator strain energy release.
與學(xué)位論文第一部分中的根據(jù)相同,作者認(rèn)爲(wèi)金屬材料中裂紋擴(kuò)展的真實(shí)動(dòng)力來源於形狀改變比能的釋放。
裂紋增長