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- Whereas the alloy with low Na content exhibited ductile fracture with dimples. 而钠含量较高的合金发生韧性断裂;断口为韧窝型.
- The fracture appearance showed that ductile fracture happened during tests at elevated temperature. 断口形貌显示，叠轧材料的高温断裂属于韧性断裂。
- GB2038- 91, Metallic materials - standard test method for JIC, a measure of ductile fracture toughness[ S]. [8]GB 2038-91;金属材料延性断裂韧度JIC试验方法[S].
- Recently, evidence of ductile fracture ahead of the tool edge in cutting OFHC copper has been shown by the authors. 最近，证据韧性断裂未来的工具边缘切割高导铜在已经证明的作者。
- The problem of ductile fracture of metals under complex stress has been investigated extensively, but has not been resolved as yet. 金属材料在复杂应力状态下的韧性断裂是断裂力学研究的重要问题之一。
- To predict the forming limit in sheet metal forming, a ductile fracture criterion is introduced into the finite element simulation. 摘要为了准确地预测板料成形极限，将韧性断裂准则引入到有限元模拟中。
- Ductile fracture is produced during the process of the tensileness, whose fracture is the shape of dimple from the analysis of examination. 2 16 9钢为延性金属 ,在拉伸状态下表现出延性断裂 ,从试验分析看 ,断口主要为韧窝形式。
- Mechanism of ductile fracture at corner of workpiece during grooveless rolling for high-speed wire is analysed in this paper. 分析了高速线材无槽轧制过程中轧件角部产生韧性断裂的机理,采用数值模拟方法研究了轧件角部出现裂纹的趋势。
- It remains an open question as to whether such ductile fracture occurs at higher cutting speeds and if it is a feature unique to OFHC copper. 它仍是一个开放的问题是，是否这种韧性断裂发生在更高的切割速度，如果它是一种功能独特的高导铜。
- The result indicates the material not only meets need of connecting rod but also has low ductile fracture and good fracture joggle in definite condition. 结果表明,该材料不仅能够满足连杆的使用要求,在一定条件下还具有断裂低塑性及良好的断裂啮合定位性。
- The mechanics condition of ductile fracture of pressure vessel materials and their relations to the fracture criteria were investigated based on the micromechanics. 应用细观力学的观点分析了压力容器材料韧性断裂的力学条件,并考察了其与断裂参量的关系。
- With the profound research in meso-damage of ductile material,meso-damage mechanics will play more and more important role in forecasting ductile fracture of metal material. 随着韧性材料内细观损伤发展机制的深入研究,细观损伤力学在预测金属材料发生韧性断裂的过程中发挥着越来越重要的作用。
- FANG Gang,LEI Liping,ZENG Pan.Criteria of metal ductile fracture and numerical simulation for metal forging[J].Chin J Mech Eng,2002,38(supp):21-25.(in Chinese). [3]方刚;雷丽萍;曾攀.;金属塑性成形过程延性断裂的准则及其数值模拟[J]
- The stress triaxiality was a major mechanical factor which induced brittle fracture,and the strain concentration controlled the ductile fracture procedure. 应力三轴性是控制高强匹配和低强匹配接头脆性断裂的主要力学因素，而应变集中控制着中强匹配接头的延性蠕变断裂。
- This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria(DFC). 摘要对板料成形中的成形极限应力图、最大变薄率、成形极限图以及韧性断裂准则等预测成形极限的方法，进行了综述和分析。
- Based on some advances by means of meso-mechanics of ductile fracture of metals, two failure models of steels used in pressure vessel is proposed: one is dimple fracture, and another is shear-slip fracture. 结合细观力学在金属韧性材料断裂中的研究成果 ,提出压力容器用钢的断裂模式有两种 :韧窝型断裂模式和剪切型断裂模式 ;
- The forming limits in non-axisymmetric square-cup deep drawing of aluminum alloy LF21, LY21(M) and steel st17 are predicted by means of the ductile fracture criterion (DFC) advanced by the author. 利用作者提出的韧性断裂准则预测了铝合金板LF21;LY21(M)和钢板st17非轴对称的方盒件拉深成形极限;并与成形极限图的预测结果和实验结果进行比较.
- The fracture mechanism of 2024 aluminium alloy without CeO2 is quasi-cleavage and dimples,the main fractographic appearances are brittle and toughness,while the fracture mode of alloy is ductile fracture with some addition of CeO2. 当未添加CeO2时,2024铝合金断口表面呈准解理和韧窝状态,表现为脆性与韧性结合的混合断裂特征,而添加一定量的CeO时,合金呈现出塑性断裂特征。
- This non sequitur invalidates his argument. 他不根据前提推理因而论证无效。
- The fracture mode of as-rolled and solution treated TiMoSn alloys is ductile fracture with the appearance of necking down, and the main characterisitic of broken cross-section is dimple. 轧态及固溶态TiMoSn合金的断裂方式都为延性断裂,断裂过程中出现了颈缩现象,断口主要特征为大小不等的韧窝形态。
