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theory of stress中文什么意思
例句與用法
- Based on the okata theory of stress triggering , we make a systemic analysis on the triggering each other of strong earthquakes and group activities of earthquake
應(yīng)用okata的應(yīng)力觸發(fā)理論，對(duì)川滇地區(qū)強(qiáng)震相互觸發(fā)、地震成組活動(dòng)進(jìn)行較系統(tǒng)的分析研究。 - This paper introduces the basic theory of stress inspection using ultrasonic at first . the mechanism of the generation of lcr wave is described in detail as well as its application
本文首先介紹了超聲波應(yīng)力檢測(cè)的基本理論,重點(diǎn)介紹了lcr波的產(chǎn)生機(jī)理及其在應(yīng)力檢測(cè)中的應(yīng)用。 - With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target . secondly based on the damage feature about ceramic / fiber composite target caused by impact load , analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given . lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target , optimizes the design of double layer ceramic / composite targets , gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3
首先，分析了纖維類正交鋪層復(fù)合靶板在沖擊載荷作用下的損傷破壞機(jī)理，結(jié)合包含損傷和應(yīng)變率效應(yīng)的材料動(dòng)態(tài)本構(gòu)方程，建立了纖維復(fù)合材料板彈道極限速度的預(yù)測(cè)公式；其次，根據(jù)陶瓷/纖維材料復(fù)合靶板在沖擊載荷下的破壞特點(diǎn)，建立了陶瓷/復(fù)合材料靶板抗彈性能分析模型，給出了彈道極限速度預(yù)測(cè)公式；最后，利用應(yīng)力波反射和透射理論討論了陶瓷/復(fù)合材料靶板的設(shè)計(jì)問(wèn)題，對(duì)雙層陶瓷復(fù)合靶板的優(yōu)化設(shè)計(jì)進(jìn)行了分析，給出了在一定面密度下的最佳優(yōu)化系數(shù)，討論了一定彈道極限速度下的面密度和厚度隨優(yōu)化系數(shù)的變化關(guān)系。 - Perfect pre - processing and post - processing function is one of the main factors to evaluate the vitality and market value of the finite element analysis system surveying today development of finite element analysis technology , most of which concentrate on establishing fine user interface , also has some limitation on application , and especially , the research on the visualization of arbitrary cut - plane is always in ascendants to realize the visual processing on cut - plane needs reprocessing the results of finite element analysis which have get , so the algorithm is two parts : seeking the physical value of cut - plane and drawing 2d contours , , the former , based on the theory of stress on " arbitrary inclined plane " in physical mechanics , use the method of linear interpolation method to get the coordination and physical value of intersection between cut - plane and element arris ; the latter , based on the tables on elements , nodes , stress and strain , summarize a rapid algorithm of generating 2d contours based on the grid . this thesis synthesizes there two parts and get a visual processing program under fortran
縱觀有限元分析技術(shù)的發(fā)展，目前大多集中在建立良好的用戶界面上的研究仍存在許多應(yīng)用上的局限性，其中對(duì)任意剖面上可視化的研究仍處于方興未艾的階段。要實(shí)現(xiàn)任意剖面上可視化處理，必須先將得到的有限元計(jì)算結(jié)果進(jìn)行再處理，因此在算法上分為兩部分：求任意剖面上物理量值的算法及二維等值線算法。前一部分以彈性力學(xué)中“任意斜截面的應(yīng)力”為理論基礎(chǔ)，利用線性插值方法得到截面與單元棱邊的交點(diǎn)坐標(biāo)及交點(diǎn)物理量值；在此基礎(chǔ)上；根據(jù)已得到的單元及節(jié)點(diǎn)序號(hào)表、應(yīng)力應(yīng)變物理量表，總結(jié)出一種基于有限元剖分網(wǎng)格的快速生成二維等值線的算法。