压缩强度

定量CT骨密度测量预测椎体压缩强度的实验研究

Experimental Study of Predicting Vertebral Body Compressive Strength Using Quantitative Computed Tomography

实验表明：随着Vf的增大，材料压缩强度减小，压缩模量和弯曲模量增大；

The experimental results indicated that with the increasing of Vf , the compressive strength decreased , and compressive , flexural modulus increased .

PAN基炭纤维反弹压缩强度初探

Study on recoil compression strength of PAN-based carbon fibers

BMD与椎体压缩强度和刚度呈正相关；

The BMD , compression intensity and stiffness were positively related .

实验结果表明，PAN基CF的压缩强度与纤维中石墨微晶的结构参数密切相关。

The experimental results show that the compressive strength of PAN-CF depends on the structural parameters of graphite crystallites .

用ASTM材料强度测试机测定压缩强度。

The compress strength was tested by ASTM strength test instrument .

18个月组与对照组胫骨的压缩强度极限为（71.23±6.60）MPa和（88.80±9.10）MPa。

The compressive ultimate strength of 18 months group and control group were 71.23 ± 6.6 MPa and 88.8 ± 9.1 Mpa respectively .

为了提高冲击后压缩强度（CAI）和考察损伤阻抗，测试了平均分层起始能量eⅡc以及接触力凹坑深度关系。

In order to improve compression strength after impacting ( CAI ) and evaluate damage resistance , a quasi-static indentation ( QSI ) test was conducted . The energy is full .

多孔HA材料的压缩强度随着孔隙率的增大而减小，但低于成年人骨的力学性能。

The compressive strength of porous HA decreases as the porosity increases , but the mechanical properties is lower than that of the adult . 3 .

结果表明，合金的室温抗弯强度和最大挠度均随Sc含量的增加而下降，而合金的高温压缩强度却显著提高。

It is shown that the ambient fracture strength and the maximum deflection of the alloy decreased with the increase of Sc content .

当界面过渡层中SiC的体积分数接近50%时，复合材料的压缩强度最高，塑性最好，但弹性模量较低。

The compressive strength and plasticity is much excellent , but elastic module is little low when the content of SiC in interface interlayer is near to 50 % .

结论：羟基磷灰石人工骨材料具有一定的可降解性，材料降解引起材料压缩强度和pH值的显著变化。

Conclusion : HA artificial bone can be degraded in PBS solution , and the degradation can cause noticeable changes of the compressive strength of the material and pH value of the immersion solution .

实验表明：随着HA的掺量增加，环氧结构胶的压缩强度、冲击强度、粘钢剪切强度提高、拉伸强度略有降低；

Results showed that when hydroxyapatite content was increased , the compression strength , shear strength and impact strength were increased but the tensile strength was a bit fallen .

采用高分子模板，通过注浆成型制备了球形孔结构的羟基磷灰石（hroxyapatite，HA）支架，研究了支架的微观结构、压缩强度和相容性。

Spherical porous hydroxyapatite ( HA ) scaffold was fabricated by the casting process using an polymer template , and its microstructure , compressive strength and compatibility were tested .

相对于常规的量化水印算法，自适应的奇偶量化水印算法对压缩强度较大的JPEG压缩和高斯噪声的鲁棒性更强。

The adaptive odd-even watermarking algorithm has a stronger robustness in high JPEG compression and Gaussian noise than common quantization watermarking algorithm . 2 .

测试完整、损伤及椎体重建即刻三种状态下L1椎体的刚度、弹性模量、极限压缩强度，通过数据得出加载过程中椎体的应力应变关系。

To test the stiffness , elastic modulus and ultimate compression strength at the state of integrity , injury and immediately vertebral reconstruction .

本文探讨了改性BMI树脂体系中各改性组分对BMI／T300复合材料基本力学性能和冲击后压缩强度（CAI）的影响，获得了具有优异的基本力学性能、较高的CAI值。

Influences of modified BMI resin composition on the mechanical properties and compression strength after impact ( CAI ) of BMI / T300 composites were investigated .

所制陶瓷克服了气孔率与压缩强度的矛盾，表现出优秀的热学性能，通过理论计算获得该材料的热导率仅为0.6W·（m·k）-1。

Al2O3 matrix porous graded ceramic overcome the contradiction between porosity and compressive strength and showed good thermal performance . The thermal conductivity was only 0.6 W ·( m · k ) - 1 by calculating .

加入BGE后，材料的冲击强度提高，但是压缩强度和模量减小。

Similarly , adding BGE also conduced to the improvement of impact strength and slight decrease in compressive strength and modulus .

70年代超声波，放射性核素诊断和计算机断层摄影相继应用于急腹症的影像诊断。定量CT骨密度测量预测椎体压缩强度的实验研究

In 70S , ultrasonography , diagnostic nuclear medicine , and computed tomography ( CT ) played a role as an assistant study method in making the imaging diagnosis of acute abdomen . Experimental Study of Predicting Vertebral Body Compressive Strength Using Quantitative Computed Tomography

目的检测不同粉体粒径对碳酸化羟基磷灰石水泥（carbonatedhydroxyapatitecement，CHC）的固化时间和压缩强度的影响，为其修复骨缺损提供理论基础。

Objective To investigate the effect of different diameter powder on setting time and compressive stress of carbonated hydroxyapatite cement ( CHC ) .

结果表明：球形孔结构的HA多孔体有较好的抗压缩强度，其中，孔径为200μm，孔隙率为65%的支架其压缩强度可达8MPa左右。

The result shows that the scaffolds with spherical macrospore have high compressive strength , among which the scaffold with the pore diameter of 200 μ m and porosity of 65 % has a compressive strength of 8 MPa .

采用尼龙66纤维及SiO2颗粒粉末作为增强剂制备了混杂增强聚氨酯硬泡塑料，这种混杂增强硬泡塑料的力学性能包括拉伸强度，压缩强度，冲击强度都有明显提高。

The hybrid rigid polyurethane foam was prepared using nylon 66 fiber and SiO_2 particle as reinforcing agents , which can distinctly improve its mechanical properties including tensile strength , compressive strength and impact strength .

X-cor夹层结构压缩强度模型改进与实验验证

Computational modified model and experimental verification of compressive strength of the X-cor sandwich

在球形空腔膨胀理论基础上，通过不同强度混凝土材料的侵彻实验数据直接识别建立混凝土材料综合动态强度参数psd与混凝土材料无侧限压缩强度σ-b的经验关系式；

Based on spherical cavity-expansion theory , empirical relation between concrete comprehensive dynamical strength parameter p sd and concrete unconfined compressive strength σ - b was established , by indentification method with penetration data for concrete .

PP／FRP复合器材的轴向拉伸强度、轴向压缩强度和界面抗剪强度均分别大于130MPa，150MPa及8.5MPa。

The interface between pp and FRP was treatmented specially . The tensile strength , compressive strength , interface shear strength is 130 MPa , 150 MPa , 8.5 MPa , respectively .

力学性能测试结果也表明成品密度在0.3g／cm~3时，玻纤对聚氨酯增强后的压缩强度和冲击强度提高率大于低密度和高密度的情况。

The mechanical properties proved that the compress intensity and impact intensity of PUR / GF with medium density were increased most .

与EMA单体比较，含EAM单体的复合树脂明显增强了压缩强度、径向拉伸强度、表面硬度、固化深度值，降低了吸水值和水溶解值。

The composite resin with EAM monomers gave high value of compressive strength , diametral tensile strength , surface hardness and lower water uptake and water solution compared to EMA monomers .

最近，Path和Pedersen提出了一种新的预报船体平板极限压缩强度的简化方法，该方法基于弹性大挠度理论和刚塑性分析的结合。

A simplified method for predicting ultimate compressive strength of ship plates has been proposed recently by Paik and Pedersen , which is based on a combination of the elastic large deflection theory and the rigid-plastic analysis .

研究了温度对EPS压缩强度的影响，在44℃时压缩强度曲线出现突变，并导致压缩蠕变明显增加。

In addition , the temperature effect on the compressive strength was studied . The results showed that the slope of strength versus temperature changed abruptly , and led to a significant increase in the creep rate at 44 ℃ .