核力学

基于有限元法建立的聚乙烯醇水凝胶人工腰椎间盘髓核三维力学分析模型

A 3D finite-element model for mechanical analysis of PVA-H artificial disc nucleus pulposus

说明采用有限元方法初步研究人工髓核的力学性能是可行的。四、结论被囊的设计合理，弹性内核的材料选择比较合适。

That shows the finite element method is feasible to study the mechanical properties of the prosthetic nucleus pulposus . Conclusion : The capsule design is reasonable , flexible cores materials choice is appropriate .

提高点焊质量的关键问题是提高点焊熔核的力学性能，传统的方法通过监控熔核尺寸来提高点焊质量，效果不易得到保障。

The key issue to improve the quality is to improve the mechanical properties of the spot welding . But the traditional method by monitoring spot welding nugget size to improve the quality is difficult to be guaranteed .

本文首先在总结历次地下核试验力学效应测试数据的基础上得出地下核爆炸波在切向坑道防护区段处的速度时程分布曲线。

Firstly , the speed-time frequency curve of the nuclear explosion wave in the protective range of the tangential gallery is made , which based on the summary of mechanical effects and test data from previous occasions of underground nuclear tests .

下颌磨牙及其桩核修复体力学特性光测分析

Optical analysis of mechanical characteristics of mandibular molar and its post-core prosthesis

结果表明：选用中等偏硬一些的焊接规范，可以获得较理想的点焊接头，接头的外观、平滑度及熔核尺寸和力学性能满足了相关标准的要求；

The results show that the perfect joint welded is obtained by choosing suitable welding condition to meet requirement of Aspect ; smoothness ; nugget dimension and mechanical properties .

新型各向异性核工业石墨断裂力学行为的实验研究和数值分析

DSCM Experiment and Analytical Study for the Fracture Behavior of Anisotropy Nuclear Graphite

弥散型核燃料板辐照力学行为的数值模拟

Numerical Simulation Researches on the Irradiation-induced Mechanical Behaviours of the Dispersion Nuclear Fuel Plate

上颌中切牙桩核冠修复体力学行为的仿真研究

Simulation Research on Mechanical Behaviors of Maxillary Incisor Restored with Post and Core Crown

核物质中的力学和化学不稳定性

Mechanical and Chemical Instabilities in Nuclear Matter

探讨了在核反应堆热工流体力学中具有普遍意义的不同温度流体达到热混合均匀状态的过程和机理。

The mechanism and process of thermal mixing of fluid with different temperature in a straight pipe were studied , which has general significance in nuclear reactor thermohydraulic process .

通过分析及比较模拟不同状态旋提手法对颈椎椎体位移及髓核内压力的力学影响，探讨旋提手法的生物力学作用机理。

To explore the biomechanics mechanism of RTM by analyzing and comparison the mechanical influence of the three dimensional displacement of cervical vertebral body and cervical nucleus pulposus pressures during different simulated RTM . 3 .

在观察疲劳裂纹形核和扩展的基础上，对接触疲劳过程中裂纹形核和扩展的力学条件进行了分析，得出了有意义的结论。

Based on the survey of the formation and expanding of the fatigue cracks , the mechanical conditions for the crack formation and expanding in the course of con - tact fatigue are analysed , thus the valuable conclusions are provided .

综述了纳米成核剂在聚丙烯中的应用研究进展，重点讨论了无机纳米成核剂对聚丙烯力学性能和结晶行为的影响。

Progress in the development and application of nano - nucleating agents for polypropylene was reviewed . Effect of inorganic nano - nucleating agents on mechanical properties and crystallization behavior of polypropylene was discussed in detail .

人工髓核有限元模型构建过程合理准确，模型可应用于各种工况下的有限元分析，可有效缩短实验过程的时间、减少实验成本，可进行复杂工况下新型髓核的力学性能测试。

The model can be applied to the finite element analysis in a variety of conditions which can effectively shorten the time during the experiment , reduce the experimental costs , can do the mechanical properties test in the complicated conditions .