This article introduces a method to determine the plastic membrane tensile modulus by using a normal mart electron tensile testing machine and computers. 文章介绍了一种利用普通的智能电子拉力试验机配以计算机来计算塑料薄膜拉伸弹性模量的方法。
The tensile modulus showed a negligible change with thermal oxidation temperature. 模量随热氧化温度变化不明显。
An analytical algorithm to estimate the tensile modulus of Brazilian disk splitting tests is presented. 提出巴西圆盘劈裂试验中拉伸模量的解析算法。
The tensile modulus approximately equal to the compressive modulus of elasticity within the proportional limit. 拉伸载荷模量约等于比例极限内的弹性模量。
On the basis of the elastic theory for different compressive and tensile moduli, the deformation regularity of surrounding rocks in tunnels under hydraulic pressures was discussed, and mathematical expressions of the elastic resistance coefficient, the elastic compressive modulus, and the elastic tensile modulus were deduced. 采用拉压不同模量弹性理论,探讨水工压力隧洞围岩变形规律,推导了圆形隧洞弹性抗力系数与拉伸弹性模量、压缩弹性模量的数学表达式。
Tensile modulus and yield stress of blends increase with concent ratio n of PMMA. 结果表明,共混物的拉伸模量、屈服应力随PMMA含量增加略有增大。
The results show that the tensile strength, tensile modulus and shear strength of the two kinds of composites present different change laws, and the glass transition temperature of composites decreases obviously after hydrothermal aging treatment. 结果表明,经湿热老化后,两种复合材料的拉伸强度、拉伸模量和剪切强度具有不同的变化规律,复合材料的玻璃化转变温度有较明显地下降。
The tensile modulus and strength of the microfibrillar composites are significantly enhanced with increasing the hot stretching ratio, indicating that the microfibers have a good reinforcement on the PET/ PE composites. 复合材料的拉伸模量和拉伸强度随拉伸比增加显著增加,表明微纤化对材料具有良好的增强效果;
In the bulk system, tensile strength, tensile modulus and impact strength are improved by 32.2%, 60.3% and 68.6%, respectively, without the loss of light transmittance. 而本体法复合材料的拉伸强度、拉伸模量及冲击强度值最大分别提高了32.2%、60.3%和68.6%,而透光性能基本未受影响。
For GB/ LLDPE composites extruded by single screw extruder, with the increase of filler content, the tensile modulus, bending modulus increased linearly, while the yield strength and bending strength increased slightly at higher filler content. 而GB/LLDPE中,随着GB用量的增加,单螺杆挤出复合材料的拉伸模量、弯曲模量均呈线性增长趋势,而屈服强度和弯曲强度在含量较高时略有上升;
The factors which affect the tensile modulus of solid composite propellant are discussed from four aspects: fillers, binder, filler/ binder interaction and processing technology, and the approaches are proposed to tailor the initial tensile modulus of composite solid propellant. 从填料、粘合剂、界面作用和工艺四个方面对影响复合固体推进剂模量的因素进行了讨论,提出了调节复合固体推进剂模量的技术途径。
The results indicated that for GB/ PP composites, with the increase of the GB content, the tensile modulus, bending strength and modulus increased linearly, while the yield strength decreased slightly; 结果表明:随着GB用量的增加,单、双螺杆挤出GB/PP复合材料的拉伸模量、弯曲强度和弯曲模量均呈线性增长的趋势,而屈服强度则有小幅下降;
The increase of draw ratios in three-stage drawing process decrease the linear density of PAN fiber and improve the strength, sonic orientation and tensile modulus. 三级拉伸工艺中各拉伸比的提高均有利于PAN纤维线密度的减小及其强度、声速取向度和抗张模量的提高;
The tensile strength, tensile modulus and elongation at break of filament from these coated fibers were examined. 测定了经电聚合处理后的碳纤维的单丝拉伸强度、拉伸模量以及断裂伸长率的变化。
A new kind of cryogenic tensile testing jig was designed, and it was used to measure the tensile strength, tensile modulus of elasticity and breaking elongation of epoxy/ nano-SiO2 composite at room temperature and 77 K. 设计了一套低温拉伸夹具,并用其测试了环氧树脂/SiO2纳米复合材料在室温和77K环境下的拉伸强度、拉伸弹性模量和断裂伸长率。
The effects of glass bead content and its size on the elastic tensile modulus ( E) of the filled low density polyethylene ( LDPE) composites are studied. 研究了填充低密度聚乙烯中玻璃微珠含量及其大小对复合体系拉伸弹性模量E的影响。
Addition of carbon black had the effect of reinforcing, increased the 100% tensile modulus, tear strength, tensile strength and Shore A hardness, decreased the elongation at break and permanent set at break. 加入炭黑,可以起到补强作用,提高100%定伸应力、撕裂强度、拉伸强度和硬度,减小扯断伸长率和扯断永久变形。
It is well known that tensile modulus is assumed the same as compressive modulus in the classical theory of elasticity. 众所周知,经典弹性理论认为材料的拉伸弹性模量和压缩弹性模量是相等的。
Through math analysis of math model, it could get the smaller of overfeeding sewing shrinkage when the fabric bending – tensile modulus ratio and the fabric connection length ratio were bigger, and the connection length was smaller. 通过对数学模型的数字解析可知:面料弯拉模量比越大、面料连接长度比越大、面料连接长度越小,超喂缝缩率越小。
The experimental results indicate that the end-effect which is obvious in conventional test can be eliminated by this method, and then more reliable tensile modulus of polyester cord will be obtained. 结果表明,减法试验法能够消除常规测试中存在的明显的端部效应,从而可以得到较可靠的聚酯帘线拉伸模量。
Under some conditions using the material mechanics calculation formula meets requirement, but under some conditions big errors can be caused, now different modulus elastic theory can be used, and tensile modulus and compressive modulus of material should be studied. 采用材料力学计算式在有些条件下是可以满足要求的,但在另一些条件下可能会产生比较大的误差,此时可采用不同模量弹性理论进行分析,并需要研究材料的拉压弹性模量。
With the increase of the denim mass content, the tensile strength and the breaking elongation increase, but the tensile modulus decreases. 随着牛仔织物质量分数增大,拉伸强度增大,断裂伸长率增大,拉伸模量降低。
The tensile property test shows that the tensile modulus of samples is decreased after degradation in all conditions, which is related to the decrease of crystallinity and conform change of trimethylene glycol conformers during degradation. 拉伸试验证明了试样在各条件下降解后拉伸模量降低,这与试样在降解后结晶度降低和丙二醇基团的邻位交叉构象增多有关。
The correlations between tensile modulus, shear modulus and temperature of PA6 were obtained by linear regression. 利用线性回归,分别得到了拉伸模量,剪切模量与温度的相关关系。