Scatter and fracture surface roughness increases with loading rate.
分散性和断裂表面的粗糙度随加载率而提高。
The fatigue fracture surface features of blade are summarized firstly.
归纳总结了叶片疲劳断口的特征形貌。
The fracture surface traverses matrix as well as fibers and interface .
断裂表面横切过基体、纤维和界面。
Quenching crack deep and long, straight fracture, fracture surface without oxide color.
淬火裂纹深而细长，断口平直，破断面。
Fracture surface consists of plastic yield deformation area and elastic deformation area.
断口主要分为塑性屈服变形区和弹性变形区两部分。
The fracture surface appeared intergranular crack, due to the oxide formed during tensile test.
拉伸过程中形成的氧化物夹杂成为裂纹源，断口表现为沿晶断裂。
Fractal dimension of impact fracture surface of 08f steel was measured by vertical section method.
利用垂直截面法测量了08f钢经不同形变氮化复合后冲击断裂表面的分形维数。
The adiabatic heating induces the temperature of fracture surface layer to be higher than the liquidus temperature too.
计算表明，断口表面层绝热升温温度依然高于液相线温度。
The cause has been analyzed which makes a difference of anti - destroying property and fracture surface feature of chrome clad.
对两种状态铬层的破坏抗力差异和端面形貌特征的形成原因进行了分析。
The fracture surface of a failed injection valve nut of diesel engine high pressure oil pump was investigated by visual and SEM.
对断裂的汽车柴油机高压出油阀紧座的宏观、微观断口及显微组织进行了研究。
The pattern of a brittle fracture surface of FEP copolymer is confirmed as fracture curve and the center of each curve is a flaw.
用金相显微镜等方法确认了国产FEP树脂的脆性断裂图案是断裂曲线，曲线中心为弱点。
A new method of recognition and classification of metal fracture surface models based on wavelet transform is presented in the paper.
实验结果表明，这种方法可以对金属断口模式进行准确的识别与分类。
It show that the fracture surface of pure epoxy resin appears brittle fracture, but the modified epoxy resin appears gliding fracture.
电镜图片表明，纯环氧树脂断裂面呈现明显的脆性断裂，而改性环氧树脂为韧性断裂。
The fractal dimension of fracture surface was measured directly by using projective covering method and laser triangulation technique.
采用投影覆盖法结合激光三角测试技术，直接测定了混凝土断裂表面分维值。
With the increase of displacement speed, fracture mode of the river patterns gradually became obvious and fracture surface became coarser.
随着加载速度的加快，河流纹断裂形态逐渐变得明显，同时断口形貌变得更加粗糙。
The main reason for the fatigue life enhancement is correlated with the enlarged dimples and more fatigue sources on the fracture surface.
微观分析表明，疲劳断口上韧窝的增大增深、疲劳源数量增加等是疲劳寿命增加的主要原因。
The high fatigue properties were found to be related with higher crack closure stress, rough fracture surface and tortuousity of crack path.
较高的疲劳性能与裂纹尖端闭合应力、断口表面粗糙度以及裂纹扩展路径弯折程度有关。
The effects of testing temperature on notch impact strength, fractographic features and fracture surface roughness of PVC have been studied.
研究了温度对聚氯乙烯PVC缺口冲击强度、断口形貌特征及断面粗糙度的影响。
The crack nucleation energy and the propagation energy were measured under impact and tensile testing. The fracture surface was examined by SEM.
测定了析出相的类型和组成，测试和计算了冲击、拉伸状态下裂纹的形核能与扩展能，并通过SEM研究了断面形貌。
The fracture energy GF of concrete is one basic material characteristic, representing the energy necessary to create a unit area of fracture surface.
混凝土断裂能G _ F是材料的一个基本性能，表示扩展单位裂缝面所需要的能量。
When the shrinkage of the rod fracture surface much more than that of the cup part fracture surface, its formation by compound extrusion is not applicable.
当杆的断面收缩率比杯形部分断面收缩率大得较多时，不适合直接用复合挤压成形。
The results indicated that the interfacial bonding between the fibre and zinc or zinc alloy is poor as a great deal of fibre pull-out on the fracture surface.
结果说明纤维与锌或锌合金的界面结合很弱，以致在它们的断口上有大量的纤维拔出。
Fully considering the speciality of soil nailing, a rather precise method of stability analysis of soil nailing based on general fracture surface is presented.
充分地考虑土钉支护的特殊性，建立了一个比较精确的基于一般破裂面的土钉支护稳定性分析方法。
The failure analysis consisted of a strength analysis, a macro-fracture surface analysis, a metallurgical microscope and scanning electron microscope analysis.
分析包括结构强度分析、宏观断口分析、金相分析和扫描电镜分析等。
Analyses and contrast shows that, the acid selected by experiment could improve the permeability nearby fracture surface and the fracture conductivity preferably.
经分析对比表明，通过实验筛选出的合理的酸液配方能较好的改善裂缝壁面附近地层的渗透率和支撑裂缝的导流能力。
The studies were carried out of the test of fatigue crack growth rate and relative to the microscopic morphology of fracture surface in certain high-strength steels.
本文用宏观和微观方法测量了几种高强度钢的疲劳裂纹扩展速率，用金相和断口复型法观察了疲劳断口的微观形态以及与显微组织的关系。
The results showed that the fracture surface of the modified systems displayed tough fracture features, markedly different from that of the unmodified epoxy resin system.
结果表明，增韧后材料的断面形态明显不同于未改性体系的形态，试样冲击断裂面形态具有明显的韧性断裂特征。
The results showed that the fracture surface of the modified systems displayed tough fracture features, markedly different from that of the unmodified epoxy resin system.
结果表明，增韧后材料的断面形态明显不同于未改性体系的形态，试样冲击断裂面形态具有明显的韧性断裂特征。
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