stress n. 1.壓力,壓迫,緊迫,緊張。 2.【語音】重音;重讀;【詩】揚(yáng)音;語勢,著重點(diǎn)。 3.重要(性),重點(diǎn),強(qiáng)調(diào)。 4.【物理學(xué)】應(yīng)力;脅強(qiáng),重力。 The landlord has imposed a severe stress on the poor tenants. 房東給貧苦的房客們加了很大的壓力。 We must lay stress on self reliance. 我們必須強(qiáng)調(diào)自立更生。 Give stress to the 2nd syllable. 重讀第二音節(jié)。 stress diagram 【工業(yè)】應(yīng)力圖。 moisture stress 缺水。 tensile stress 【材】抗張應(yīng)力。 be stressed out (因心理壓力過重而)精疲力盡的。 driven by stress of=under stress of. in times of stress 在緊張[繁忙,困難]的時(shí)候。 lay [place, put] stress on 強(qiáng)調(diào),用力干,著重于。 under stress of 被…逼迫著,在…強(qiáng)制下,由于,因?yàn)椤?vt. 1.著重,強(qiáng)調(diào),加重語氣說。 2.用重音讀。 3.加壓力[應(yīng)力]于,壓,壓迫。 adj. -ful ,-less adj.
The elastic solution for elastic - plastic problem is based on model theory of elastic - plasticity and deformation theory of plasticity . with the original data which embodies the stress state of complicated structure at elastic phase and is attained by experiment or calculation , according to the similarity theory between elasticity and plasticity and generalized stress - strain material curves , and using new means and new techniques , this method and change the elastic value into plastic value correspondingly 結(jié)構(gòu)彈塑性分析的彈性解法是以彈塑性力學(xué)的模型理論和塑性力學(xué)形變理論為基礎(chǔ)的,具體做法是利用實(shí)際工程中由實(shí)驗(yàn)或者計(jì)算等方法獲得表征復(fù)雜結(jié)構(gòu)彈性階段應(yīng)力狀態(tài)的原始數(shù)據(jù),根據(jù)彈性力學(xué)和塑性力學(xué)方程的相似關(guān)系和被實(shí)驗(yàn)材料的廣義應(yīng)力應(yīng)變曲線,采用新的分析方法和實(shí)驗(yàn)手段,將彈性解轉(zhuǎn)換成對應(yīng)的彈塑性解。
Abstract : incompatible element nh11 and hybrid stress element 18 were employed to analyze rock burst occurring in coal face 9108 of sanhejian coal mine . compared with the results from ansys , the two optimized fems can execute more accurate numerical simulation in the research of rock burst as well as other rock problems and lessen the errors from inaedquately meshing in huge calculations due to the limitation of labor and computer time . in addition , the criterion of averaged generalized stress rate was proposed and used to determine the site and moment of rock burst . the given conclusion is in accordance with the face of coal face 9108 very well 文摘:利用優(yōu)化非協(xié)調(diào)元和雜交元分析了三河尖礦沖擊礦壓,并與ansys程序的計(jì)算結(jié)果進(jìn)行了比較.認(rèn)為優(yōu)化有限元在沖擊礦壓乃至巖石材料的數(shù)值模擬中能給出更為精確的結(jié)果,也可減小大型計(jì)算中由于人力、機(jī)時(shí)所限粗分網(wǎng)格產(chǎn)生的誤差.分析中,采用了廣義平均應(yīng)力率準(zhǔn)則來判斷沖擊點(diǎn)位置和沖擊時(shí)刻,所得結(jié)論與實(shí)際情況吻合
The corresponding control equation is given . the control equation and boundary condition about the addiontional small deformation ' s effect caused by initial stress using virtual principal theory in cylindrical reference frame . generalized stress and strain and equivalent constitutive equation are given 第四章提出了描寫柱形薄殼中初應(yīng)力的數(shù)值特征,將應(yīng)力的三維分布轉(zhuǎn)化為二維分布,給出相應(yīng)的支配方程;在柱坐標(biāo)系中,利用虛功方程建立了初應(yīng)力對附加小變形影響的控制方程和邊界條件;給出了廣義應(yīng)力、廣義應(yīng)變及等效本構(gòu)關(guān)系。