fracture toughness

The Low-Cycle Fatigue Crack Growth Rate and Ductile Fracture Toughness for BHW 35 Steel

BHW35钢低周疲劳裂纹扩展速率和延性断裂韧度

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Bivalve shell has excellent fracture strength and fracture toughness.

贝壳是具有很好断裂强度和断裂韧性的自然生物复合材料。

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Double-K fracture models think that the increasing fracture toughness when the cracks expand stably will increase the cohesion which have the role of crack closure.

双K断裂模型认为裂缝稳定扩展过程断裂韧度的增加会对裂缝产生闭合作用的粘聚力。

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The computed 2 δ c values corresponded to the experimental deep notch root radius ρ 0. The relationship between fracture toughness and notch toughness depended on the relative size of effective deformed zone 2 δ c and mean free distance d B between bainites.

计算的2δc与测定的深缺口临界根部半径ρ0有对应关系。裂纹韧度与缺口韧度的关系取决于2δc与贝氏体之间的平均自由距离dB。

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Fracture toughness of heat-affected zone ( HAZ ) was between the base metal and weld metal.

焊接热影响区的断裂韧性介于母材和焊缝金属之间.

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The microstructures of TiAl based alloy were refined and homogenized by multi step thermomechanical treatment ( MSTMT) process, and the fracture toughness of the materials with these fine microstructures were investigated.

通过复合热机械处理新工艺，得到了细小均匀的TiAl基合金的显微组织，并研究了这些显微组织的断裂韧性。

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The advances on the fracture toughness in high impact polystyrene ( HIPS ) were reviewed.

综述了 高抗 冲 聚苯乙烯 断裂韧性方面研究工作的进展.

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Cr-Cu-N films were deposited using low energy ion beam assisted magnetron sputtering ( IBAMS). The effects of copper and bombardment energy on structure, hardness and fracture toughness of the films were studied.

应用低能离子束辅助磁控溅射（IBAMS）沉积铬-铜-氮薄膜，研究了铜含量和轰击能量对薄膜结构、硬度和断裂韧度的影响。

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The author used the chevron notched short-rod specimen for fracture toughness test suggested by ISRM in his experiment. The specimen is Kallax gabbro from Sweden with diameter of 71.4mm.

本实验研究采用国际岩石力学学会建议的V型切口短棒岩石断裂韧度试件，岩石为瑞典的卡莱克思（Kallax）辉长岩，试件直径为71.4mm。

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Blunting line equation in ductile fracture toughness j_(ⅰ c) measurement

延性断裂韧度J（ⅠC）测试中的钝化线方程

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Fracture Toughness Investigation of the Fusion Area of Stainless Steel Weld Overlay Specimens Before and After Hydrogen Charging

不锈钢堆焊试件熔合区充氢前后的断裂韧性研究

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The strength, fracture toughness and shock resistant of the hardened cement from class A pure slurry are small, but these values increase largely with the addition of fiber to the slurry.

A级原浆水泥石的强度、断裂韧性和抗冲击功通常较小，加入纤维后可以较大幅度地提高其强度、断裂韧性和抗冲击功。

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When the ion bombardment energy was increased from 400 eV to 800 eV, the film structure was changed remarkably and its fracture toughness and hardness were improved further.

离子辅助轰击能量从400eV增加到800eV时薄膜的结构发生了显著变化，断裂韧度和硬度均大幅度提高。

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Evaluation of fracture toughness of API Class D sucker rods

D级抽油杆用钢断裂韧性的评定

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As a kind of natural biological composite material consisting of collagen fibers and hydroxyapatite, bone possesses high fracture strength and fracture toughness.

骨作为一种由胶原纤维和羟基磷灰石组成的自然生物复合材料，具有很高的断裂强度和断裂韧性。

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With the decreasing of Al sheet thickness, constraint effect increase, and fracture toughness, JIC, also decrease.

随着其厚度尺寸的下降, 界面约束作用显著增强, 其断裂韧性, JIC值明显下降.

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The fracture toughness K IC and interphase energy G IC of Ag-Cu/ Ti nan'on bilayer film and Ti monolayer film composite system are tested by unilateral gap three-point bend method and double cantilever beam method.

用单边缺口三点弯曲法和双悬臂梁法分别测试了Ag-Cu/Ti纳米双层膜及Ti单层膜复合体系的界面断裂韧性KIC及界面断裂能GIC。

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Experimental study on the relationship between rock fracture toughness and acoustic velocity

岩石断裂韧性与声波速度相关性的试验研究

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Influence of Aggregate Size on Adhesive Fracture Toughness of New and Old Concrete

粗骨料粒径对新老混凝土粘结断裂韧度的影响

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In order to adapt to the needs of the production, fracture mechanics continue to put forward a series of fracture toughness. CTOD as an indicator of fracture toughness, other parameters cannot be compared with whose authenticity and accuracy.

为了适应生产的需要，断裂力学不断提出一系列断裂韧性指标，CTOD作为断裂韧性的一个指标，其真实性和准确性是其他参量不能比的。

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Studies on impact fracture toughness of composite materials pp/ at

凹凸棒土增强聚丙烯复合材料冲击断裂韧性的研究

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The evident effect of rolling direction on fracture toughness is found.

发现板材的轧制方向对断裂韧性影响显著，LT方向试件的断裂韧性远超过TL方向试件的断裂韧性。

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Crack defection, crack branching and whisker bridging process may also contribute to the increase of fracture toughness.

断裂韧性的增加是由于裂纹偏转、裂纹分支和钉扎等作用引起。

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The material has better mechanical properties than that of natural tooth in bending strength ( 142MPa), fracture toughness ( 4.75MPam~ ( 1/ 2)), hardness ( VHN 5.33GPa).

并具有比天然牙更优的力学性质，如抗弯强度（142MPa）、断裂韧性（4.75MPam~（1/2）），硬度（VHN5.33GPa）等。

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As the typically brittle materials, optical glass has been used in many hi-tech fields widely, such as aerospace 、 microelectronics 、 optical industry and so on. But high hardness and low fracture toughness lead to its poor machinability.

光学玻璃作为典型的脆性材料广泛地用于航空航天、微电子、光学工业等诸多高新技术领域；但其因硬度高、断裂韧性低而导致可加工性较差。

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The results show that better combination of low temperature impact toughness, fracture toughness and tensile strength can be obtained by quenching at between 860 ° C and 920 ° C and tempering at from 550 ° C to 600 ° C.

实验结果表明，淬火温度为860～920°C，回火温度为550～600°C时，该钢的低温冲击韧性、断裂韧性和抗拉强度可获良好的匹配。

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The fracture toughness Klc will be calculated by the transverse flow stress of tube wall and the actual maximum diameter of the aperture.

可以通过测量射孔后管壁的横向流变应力和孔眼的实际最大尺寸来计算套管在射孔过程中不开裂的断裂韧性指标K（Ic）。

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Dynamic stress intensity factor impulse response curves are obtained. The dynamic initial fracture time, tf, can be received by RKR local stress fracture criterion. The material dynamic fracture toughness is successfully obtained from numerical simulation.

起裂时问通过RKR局部应力断裂准则获得，结合计算得到的动态应力强度因子冲击响应曲线，最终得到材料动态断裂韧性，并验证了其有效性。

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The added copper had no obvious effects on the film structure and hardness at same bombardment energy of 400 eV. But added copper was beneficial to improvement of the film fracture toughness.

结果表明：在相同的轰击能量（400eV）下，铜含量对薄膜结构和硬度的影响不明显，但是铜的加入有利于提高薄膜的断裂韧度；

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Its comprehensive coverage focuses on fracture toughness of aluminides and other intermetallics through ductile phase reinforcement.

它的广泛报导集中在汽车部件的铝与它的合金焊接，包括所有焊接技术。

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