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Based on the laminate theory, a laminate weakened by damage is treated as an anisotropic thin plate. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of Faber series. A hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. The state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and Yamada-Sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up. The effects of various parameters on the stress distribution and the residual strength of a composite laminate weakened by damage are detailedly studied.

首先基于经典层板理论,将复合材料层板的弹性问题化归为均匀各向异性板来求解;采用各向异性体平面弹性理论中的复势方法,以Faber级数为工具,给出了有限大含椭圆核各向异性板弹性问题的级数解形式;利用杂交变分原理,成功导出含椭圆核各向异性板杂交应力有限元,并用算例验证了该单元的可行性和有效性;采用含刚度折减椭圆形弹性核的冲击损伤模型,引入基于特征曲线和Yamada-Sun破坏准则的点应力判据,建立了含损伤复合材料层板剩余强度的分析方法;通过数值计算详细讨论了各种几何参数对损伤层板应力分布、剩余强度的影响,得到了一系列对工程应用具有实用价值的结论。

In order to deal with the problems such as access hotspots,a distributed resource anneal processing model is provided.

针对分布式资源导致的访问热点等一系列问题,建立了一个用于分布式资源退火的处理模型。

The announcer raised a series of issues and asked what I would do about them.

播音员提出了一系列问题,问我会如何进行处理。

A series of 3--1,2,3-triazolo[4,5-d]pyrimidin-7-ones were synthesized via the tandem Aza-Wittig reaction annulation.

用串联的氮杂Wittig关环反应合成了一系列3--1,2,3-三唑[4,5-d]嘧啶-7-酮。

Recently, we have detailed a new series of furan-containing teraryl cyclophene derivatives 40a-f and 67. And two keys to syntheses were one-pot furan annulation and the McMurry reaction.

过去我们已成功地利用呋喃成环反应,与McMurry反应合成到一系列的含呋喃之[n.2]环芃烯40a-f与环芃双烯67。

The annulation of stilbene compounds were studied. Phenanthrene derivates-interme diates of tylophorine were synthesized by annulation from-2,3-bis(3,4-dimethoxyphen yl)acrylic acid and-2,3-bis(3,4-dimethoxyphenyl) acrylonitrile with phenyliodine diace tate as a friendly and high efficient catalyzer.The route was first reported, whose application foreground would be promising.The catalyzer will be used to study of synthesi- zing a series of new phenanthrenes.

本文还探索了简单类化合物关环反应,并研究出用廉价高效对环境友好的催化剂-二乙酸碘苯成功地将类化合物-3,4-二甲氧基-α-(3,4-二甲氧苯基)-肉桂酸和-2-(3,4-二甲氧苯基)-3-(3,4-二甲氧苯基)-丙烯关环形成相应的菲环衍生物-娃儿藤碱重要中间体,此方法在国内尚属首次,具有重要的应用价值,此外可用此催化剂研究一系列类化合物的关环反应。

This is only the latest in a series of market anomalies that have been discovered over the years.

这只是近年来发现的一系列市场异象中的最新一项。

A series of anorthite/glass composites were prepared using electronic ceramics process.

采用电子陶瓷工艺制备了一系列钙长石/玻璃复合材料,并对复合材料进行X射线分析、扫描电镜观察和性能测试。

Japan is made on a series of new old issuesThe antagonism atti......

日本在一系列新。。。。。。

The subjects were investigated by dietary survey and anthropometry before and after dietary intervention carried out for 3 months.

自 2 0世纪 70年代后期开始,所采取的一系列治疗措施的远期疗效均不理想,在接受治疗者中,相当一部分在一段时间后又恢复原有体重[2~ 4] ,因此有关影响肥胖治疗应答反应的因素的研究便成为近年来研究的焦点之一。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。