Fourth , according to the actual aircraft frame part , the scale component is machined , and the quenching process of the scale component is simulated , which obtain temperature field and residual stress field in the frame scale component 4 、建立了某軍用飛機(jī)隔框零件比例件三維淬火過程有限元模型,模擬得到其三維瞬態(tài)溫度場(chǎng)與應(yīng)力場(chǎng)。
Finally , a non - linear finite element method on the basis of the classical plastic theory was introduced to analyze the distribution of residual stress field in the filament winding layers and metal liner after the autofrettage process 采用經(jīng)典塑性理論為基礎(chǔ)的非線性有限元方法,預(yù)測(cè)了預(yù)超壓工藝后容器復(fù)合材料纏繞層和金屬內(nèi)襯內(nèi)殘余應(yīng)力場(chǎng)的分布。
This methodology avoids the operation of mathematical programming in traditional method of shakedown analysis and therefore obstruction due to large scale mathematical programming is overcome . the method for constructing a residual stress field based on the elasto - plastic analysis for soil structures do not need the linearization of the yield condition . the accuracy of numerical solution depends on elasto - plastic analysis 鑒于以上原因,本文深入、系統(tǒng)地研究了結(jié)構(gòu)安定性分析的數(shù)值理論和計(jì)算方法,在此基礎(chǔ)上,基于經(jīng)典安定理論建立了安定性分析的數(shù)值計(jì)算方法,并將其運(yùn)用到巖土工程中地基的靜、動(dòng)力穩(wěn)定性評(píng)價(jià)中。