对单向纤维增强复合材料的纵向拉伸破坏进行了细观统计分析。
A microscopic statistical analysis of the longitudinal tensile failure of unidirectionally fiber reinforced composites is performed.
混凝土的拉伸破坏机理比较复杂,尚无合适或简便的力学模型和研究方法。
The mechanism of tensile failure of concrete is rather complex, so there are no suitable or convenient mechanics models and research methods.
岩石在压拉应力作用下发生的拉伸破坏可以利用应力之间的线性关系描述。
The strength criterion of rock loaded by compression stress and tensile stress can be described with linear relation of stresses.
对单晶镍纳米丝、纳米薄膜零温准静态拉伸破坏过程进行了分子动力学模拟。
With Embedded Atom Method, the surface effects of monocrystalline nickel wire and nickel film under uniaxial tension are studied by Molecular Dynamics.
岩石较少有直接拉伸破坏,在巷道和采场顶板中,弯曲变形是重要的变形模式。
The bending deformation was a kind of important deformation mode in the tunnels and roofs of coal mines because direct tensile failure of rock seldom happened.
当被保护系统超压时,爆破片沿薄弱环节拉伸破坏,泄放压力,从而起到保护作用。
When the protected system overpressure, blasting sheet along the weak link tensile failure, relieving pressure, thus plays a role in protection.
能量耗散使岩石产生损伤,并导致岩性劣化;能量转化则是引发岩石拉伸破坏的内在原因。
Energy dissipation leads to rock damage and lithologic deterioration while energy conversion is the internal cause for rock tensile fracture.
岩石内部包含的缺陷和缺陷处的应力集中被认为与岩石在压应力作用下的拉伸破坏密切相关。
The stress concentration at nonuniformities is believed to be the crucial one among the factors influencing the tensile failure process under pressure conditions.
针对M 10型预埋件的塑胶-锥体复合拉伸破坏形态,得出极限拉伸荷载的简化计算公式。
The simplified formula of ultimate tension load is obtained in view of mix plastic-cone tension failure mode of the M10 plastic embedded part.
拉伸破坏损伤表现为:基体开裂,横向纤维束开裂,界面层脱粘,纤维断裂,层间剥离和纤维束断裂。
The tensile damage behavior involves:matrix microcracking, transverse bundle cracking, interfacial debonding, fiber fracture, ply delamination and bundle splitting.
本文通过基础试验和现场观测,证明了煤巷掘进工作面煤与瓦斯突出是工作面煤壁盘形拉伸破坏的连锁反应过程。
Based on laboratory experiments and in-situ observations, it has been proved that outburst of coal and gas in in-seam drivage is a chain reaction process of disc tensile fracture in a working face.
由于试样细观缺陷非均匀性的存在,导致岩石断裂主要由拉伸破坏引起,但拉剪混合破坏仍然存在,并对抗剪强度有较大的影响。
Due to the heterogeneity, rock failure mainly results from tensile damage but shear damage still exists, which has influence on the shear strength.
通过以上两种不同的模拟方法,本论文分别阐述了拉伸破坏实验、压缩破坏实验以及电测法测定材料弹性模量和泊松比的仿真软件设计与开发的方法。
Through the two different methods, this paper discusses how to develop the experimental simulation software: tensile test, compressive test, strain measurement of Young modulus and Poisson ratio.
结果显示:改性浇铸尼龙材料拉伸屈服后能够产生很大的塑性形变,不会发生脆性破坏。
The results showed that cast nylon modified with laurolactam could produce heavy plasticity deformation without brittle destruction after the tensile yielding.
本文介绍纺织结构复合材料在剪切、压缩、拉伸和弯曲情况下的破坏机理,分析其特点和存在的问题,提出了发展趋向。
This paper describes the failure mechanisms based on shear, compression, tension and flexure, analyzes characteristics and problems of those models and then discusses the future trend.
本文结果为进一步研究正交叠层复合材料的细观破坏机理、最终拉伸强度及协同效应等提供了重要的理论依据。
The present results may provide an important theoretical basis for further studying the micro-failure mechanism, ultimate strength and synergistic effect for cross-ply laminates under tension.
由单轴反复拉伸试验分别研究了含键合型防老添加剂和防老剂h的HTPB推进剂破坏能与贮存老化时间的关系。
The relationships between damage energies of HTPB propellants and storage ageing time were investigated by uniaxial repeated tensile test.
还测试了股骨、胫骨拉伸和压缩时的破坏强度。
The tension and compression ultimate strengths of femur and tibia were tested, too.
结合工程实践对这两种节点进行了静力拉伸试验,分析了节点的破坏机制。
According to practice of project, static tensile tests are performed on the two connection types and the constructive mechanisms are analyzed.
通过对钢筋与金属套筒之间采用植筋胶粘结的拉伸抗剪试验,探讨了植筋胶的粘结机理和拉伸抗剪破坏模式。
Through pullout tests for shear resistance of the adhesive steel bar in the metal tube, the bond principals and failure modes of adhesives are studied.
本文对悬膜空间结构的一种破坏模式——膜的塑性拉伸失稳破坏进行探讨。
This paper investigates one of the failure modes of suspension membrane structures-plastic tensile collapse of the membrane.
本文对该体系的节点进行了单向拉伸情况下的应变变化情况及其整体变形、节点连接破坏情况性质的分析。
This paper analyses the load-deformation and the whole deformation of the system joint when it is in the single direction drag and the destructive quality of joint connection.
提出在构造应力场中,开采运输巷道上方的煤体使巷道产生拉伸形变是巷道破坏的主要根源。
The main factor causing destruction of roadway in tectonic stress field is found to be the high tensile strain, which appears after the coal seam above haulage roadway is mined.
通过极限抗拉强度试验和围压作用下的拉伸试验,研究了柔性混凝土的抗拉破坏特性。
Based on the ultimate tensile strength test and extension test under confining pressure, the characteristics of flexible concrete are studied.
沿着纤维长度有很强结合力的共价结合在这个方向上给予复合材料很高的模量,因为要损坏或拉伸纤维就必须破坏或移除这种结合。
The strong covalent bonds along the fiber's length give them a very high modulus in this direction because to break or extend the fiber the bonds must also be broken or moved.
用声发射监测带有不同深度缺口的Q2 35钢试样的拉伸试验,由声发射信号分析判断缺口发生破坏的情况。
The tensile test of Q235 steel samples with notches of different depths and their damages were monitored by acoustic emission technique.
这反映华北克拉通东部区域拉伸方向的演变受控于太平洋区大洋板块运动,克拉通破坏的动力学背景应为弧后伸展。
It is suggested therefore that the extensional direction evolution was controlled by the oceanic motion and the craton destruction took place under a back-arc spreading setting.
这反映华北克拉通东部区域拉伸方向的演变受控于太平洋区大洋板块运动,克拉通破坏的动力学背景应为弧后伸展。
It is suggested therefore that the extensional direction evolution was controlled by the oceanic motion and the craton destruction took place under a back-arc spreading setting.
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