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压应力峰值
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  the peak compress stress
     It show that the change of the thickness of porcelain has obvious effect on the peak tensile stress and indistinctive effect on the peak compress stress.
     5.当粘结剂材料分别为磷酸锌、复合树脂、玻璃离子、聚梭酸锌时,随着粘结剂材料弹性模量的增大,基底冠、瓷层上的拉应力峰值、压应力峰值、VonMi ses应力峰值有减小趋势,而粘结剂上的拉应力峰值、压应力峰值、VonMises应力峰值有增大趋势,但应力峰值变化趋势均不明显。
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  “压应力峰值”译为未确定词的双语例句
     3. When loaded perpendicularly, the stress value of Frialit-2 is smaller than that of IMZ. The peak compressive value of Frialit-2 is 9.8N/mm2, which is smaller than that of IMZ.
     3.垂直加载时,Frialit-2种植体具有较好的应力分布状况,其骨界面上最大压应力δmax=9.84N/mm~2,小于IMZ形种植体周骨界面压应力峰值
短句来源
     RESULTS:The peak values of compressive stress and the Mises stress were increased as the thickness of metal crown was increased from 0.2 mm to 0.8 mm,while the peak value of tensile stress was decreased.
     结果:随着基底冠厚度从0.2mm增大到0.8mm,基底冠和瓷上的压应力峰值与Mises应力峰值有增大的趋势,拉应力峰值则呈降低的趋势。
短句来源
     The maximum compressive stress in the surface of alveolar crest was -1.601Mpa in the ball attachment model and -0.296Mpa in the telescope crown model.
     球帽式附着体模型中牙槽嵴表面上的最大压应力峰值为-1.601Mpa,而套筒冠式附着体模型的压应力峰值为-0.296Mpa。
短句来源
     Whatever radial or axial stress, compression stress first occurred in rock mass and transformed tensile stress later.
     无论是径向还是环向,岩体内首先出现的都是压应力,而后转变为拉应力,在爆炸近区,压应力峰值大于拉应力峰值,随距离的增大,两者差值减小,最终拉应力峰值大于压应力峰值
短句来源
     If the conical angle is too small, the contact stress of CFRP bars will increase too.
     锥角差过大,会减小锚具的有效锚固长度,且碳筋上的接触压应力峰值也随之增加,锥角差过小碳筋在夹片小端则可能会出现“切口效应”;
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     3.the shift time at the peak;
     3.峰值时差;
短句来源
     Peak current detector for defibrillation
     心脏除颤峰值测定器
短句来源
     subsection welding can effectively decrease welding tensile stress and then engenders residual transverse stress in the blade dangerous area.
     分段焊可以降低叶片危险区域的残余拉应力峰值并产生残余压应力;
短句来源
     especially, the residual stress of the interior of the material is changed into compressive stress.
     表面残余应力为压应力
短句来源
     Structure of Pretensioned and Precompressed Concrete
     预拉压应力混凝土结构
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The sole pressure was measured in patients with congenital clubfoot treated by early muscular power balancing.The purpose of this study is to analyze the long-term results of this operation by biomechanics. Using the sole stress testing distribution system designed by the authors,33 cases(42 feet)with an average of 16.9 years(range,13 to 32yrs)were measured 6.5-28.5 years(mean 15 years and one month)after operation. The results were compared with those in the normal control.The sole pressure distribution was...

The sole pressure was measured in patients with congenital clubfoot treated by early muscular power balancing.The purpose of this study is to analyze the long-term results of this operation by biomechanics. Using the sole stress testing distribution system designed by the authors,33 cases(42 feet)with an average of 16.9 years(range,13 to 32yrs)were measured 6.5-28.5 years(mean 15 years and one month)after operation. The results were compared with those in the normal control.The sole pressure distribution was nearly normal in 35 feet and clinically evaluated as excellent and good. The time of full-foot on ground prolonged and that of the heel-off decreased significantly(P< 0.05).The dynamic peak pressures of fifth matatarsal head and halluces were lower than those in control(P<0.05,P<0.01)and the stresstime integrals of halluces decreased(P<0.05).The therapoutic results of 7 fair and poor feet revealed abnormal parameters of sole pressure distribution(P<0. 05 or P<0.01).Concltlsion: The sole pressure distribution test serves as a valuable biomechanical parameter to evaluate the oporative outcome.

对先天性马蹄内翻足早期肌力平衡手术后远期足底压应力进行测试,旨在从生物力学角度分析和评价手术疗效。采用自行设计的足底压应力分布测试系统,测试术后6年6个月~28年6个月(平均15年1个月),年龄13~32岁(平均16.9岁)的33例(42足)的足底压应力,并与正常足相比较。结果:临床疗效优良者35足的足底压应力分布接近正常,但部分指标仍有异常。全足着地期延长,足跟离地期缩短(P<0.05),动态第5跖骨头部位和拇趾部位压应力峰值减小(P<0.05,P<0.01),拇趾部位压应力。时间积分减小(P<0.05)。临床疗效可和差者7足的足底压应力分布所有指标均显著异常(P<0.05及P<0.01)。结论:足底压应力分布测试可作为从生物力学角度分析和评价足部手术疗效的有效指标。

For analysing the collapse load of heavy plate welded steel column, it is important to obtain the residual stress distribution in the cross section of the column. Using the theory of thermal elastic梡lastic stress analysis, this paper calculates the residual stress distribution in the heavy plate welded box-section by finite element method.The studing results indicate that the maximum tensile residual stress in the box-section is slightly higher than the yield strength of the parent metal due to the...

For analysing the collapse load of heavy plate welded steel column, it is important to obtain the residual stress distribution in the cross section of the column. Using the theory of thermal elastic梡lastic stress analysis, this paper calculates the residual stress distribution in the heavy plate welded box-section by finite element method.The studing results indicate that the maximum tensile residual stress in the box-section is slightly higher than the yield strength of the parent metal due to the influence of three-dimensional residual stresses. The magnitude and distribution of compressive residual stress are relate to the heat input created by welding process and the cross section geometry. Affected by the geometry of box-section, the residual stress distribution of plate with welding passes is different from that of another plate. Residual stress measurement is made by the sectioning method, the agreement between the calculated and tested results gives confirmation to the analytical method.

厚板焊接柱极限承载力研究的关键是焊接残余应力的确定.本文应用热弹塑性应力分析理论,有限元法计算了厚板焊接箱形截面的残余应力分布.结果表明:由于三维残余应力的影响,厚板焊接箱形截面中纵向残余拉应力的峰值略高于钢材的屈服点,残余压应力分布区的大小及压应力峰值不仅与焊接输入热量有关,而且与截面积的大小有直接关系.受厚板截面本身的几何形状所影响,箱形截面有焊缝一侧壁板与另一侧壁板残余应力分布及大小有明显的不同.两个1/4箱形截面的焊接残余应力实测基本上验证了理论分析.

Objective: To make a comparative study on stress distribution between complete mandibular implant - supported overdenture and complete demure. Methods: We set up .3 - DFE models of the two kinds of dentures aided by CT Scan, and made a comparative study on their stress distribution under punching loads which was mord similar to occlusal force. At the same time had a primary try on bringing the chewing's dynamic process into 3 - DFE study. Results: 1. The stress peaks of the implants. Implant - bone and implant...

Objective: To make a comparative study on stress distribution between complete mandibular implant - supported overdenture and complete demure. Methods: We set up .3 - DFE models of the two kinds of dentures aided by CT Scan, and made a comparative study on their stress distribution under punching loads which was mord similar to occlusal force. At the same time had a primary try on bringing the chewing's dynamic process into 3 - DFE study. Results: 1. The stress peaks of the implants. Implant - bone and implant u soft interface lay in lateral implants and their distal and lingual interface respectively; 2. The implants' utilization could lower the extreme principle stress of the residual alveolar bone; 3. The stress peaks in the base of two kinds of dentures lay in anterior lingual base and the base at the top of distal implants respectively. Conclusion: 1. Mechanics complications of implant-supported overdenture were easy to occur in lateral implants and their distal and lingual implant-bone interface; 2. The utilization of implants could be advantageous to slower residual alveolar bone's absorption; 3. The position easy to be fractured in dentures' base was different in the two kinds of dentures.

目的比较分析下颌种植覆盖总义齿及下颌常规总义齿的应力分布特点。方法应用CT扫描法建立下颌种植覆盖总义齿及下颌常规总义齿的三维有限元模型,并采用更为接近 力性质的冲击载荷,将咀嚼动态过程引入有限元研究,比较分析两种义齿应力分布特点。结果①种植体内部应力最大值出现于侧方种植体内,骨界面及软组织界面应力最大值出现于侧方种植体远中舌侧皮质骨及粘骨膜内;②下颌种植覆盖总义齿种植体的应用降低了剩余牙槽嵴表面压应力峰值;③下颌常规总义齿及种植覆盖总义齿基托应力峰值分别出现于前牙区舌侧基托及侧方种植体顶部基托处。结论①下颌种植覆盖总义齿机械并发症易发生于侧方种植体内及侧方种植体骨界面处;②种植体的应用有利于保护剩余牙槽嵴,减缓骨吸收;③二种义齿基托易折部位不同。

 
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