又分析了文献上四种耐热钢和五种镍基合金的蠕变及蠕变断裂数据。
Creep and rupture date of five types of Nimonic alloys and four types of heat-resistant steels obtained from the literature have been analyzed.
结果表明,不锈钢管”鼓包”状开裂的主要原因是晶间腐蚀导致的蠕变断裂。
The results shows that the main reason of stainless steel pipe cracking is that intercrystalline corrosion result in creep rupture.
文中给出厚壁圆筒蠕变断裂数值算例,计算结果证明了该算法的高效和正确性。
The validity of computer program is verified and the high efficiency of the proposed algorithm is also demonstrated by the results of a thick cylinder problem subjected to an internal pressure.
中强匹配接头蠕变断裂位置在远离焊缝界面的低强度母材区,呈延性断裂性质。
However, the creep fracture of medium strength match joint, located in the low strength base metal remote from the weld interface, showed a ductile fracture character.
P 92钢是目前超超临界机组主蒸汽管道的应用钢种,其蠕变断裂寿命被广泛关注。
The P92 steel is a steel sort being used for main steam pipelines of ultra-supercritical units at present, its creep rupture life has widely drawn close attention.
随施加应力的增大,纤维的恒蠕变速率增大,抗蠕变断裂时间变小,蠕变断裂伸长变小。
The constant creep rate was increased and creep-resistance breaking time and creep breaking elongation were decreased with the increase of applied stress.
影响疲劳蠕变断裂寿命分散性的因素主要有层合板的铺设结构、木材缺陷和竹材结构等的影响。
The influence factors of fracture life are composites boards lay structure, wood - lacuna, and bamboo structure.
采用受约束蠕变孔洞生长模型计算了不同试验条件下t 91钢的蠕变断裂时间,计算值与实测值相差不到2倍。
Results show that the ratio of calculated time to measured value is less than 2. After the modification of constrained cavity growth model, the calculated rupture time further appr...
刚玉莫来石材料的断裂在室温下由裂纹扩展控制,在高温下由蠕变机制控制。
The rupture of corundum-mullite materials was controlled by crack at room temperature and creep at high temperature.
本文以金相分析与断裂力学方法研究了主蒸汽管道蠕变破裂过程。
In this paper, the fracture process in creep of main steam pipeline is studied by metallographical and fracture mechanics.
在晶界上形成形态复杂稳定的碳化物能阻止空洞的连接,从而延长了蠕变第三阶段,增加了断裂时间。
The stable eutectic carbides with complex morphologyprevent coalescence of grain boundary voids and therefore prolong tertiary creep stage and rupture time.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能。
They are mainly concerned with the tensile and compressive behavior, energy absorption, dynamic impact, failure criterion and constitutive relation, creep, fatigue and fracture of these materials.
从中发现,蠕变程度越严重的区域,其分形维数越小,在断裂的地方达到最小。
It follows from this that the fractal dimension is less while the creep is more serious, the value attains minimum in crack.
经过对螺栓的服役条件以及工作中受力情况进行分析,认为螺栓断裂主要是由于长时间在高温条件下发生蠕变导致的。
Work condition and force acting of the bolt were analyzed. The bolt failure was creep fracture mainly due to their high temperature work condition.
断裂孕育时间随材料的蠕变指数、上覆岩层压力的增大而减小;裂隙扩展时间也随材料的蠕变指数、上覆岩层压力的增大而减小,但随岩石的抗拉强度增大而增加。
Also, the crack extension time decreases with the increase of material creep index and the loading of overlying strata rock while it increases with the increase of tensile strength of roof rock.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能 。
The dynamic impact energies of 16MnR welded joints were determined with high speed impact test, and the influencing factors and fracture morphology were studied.
利用ANSYS工具,可以分析半导体的非线性特性,其中包括封装变形、焊接点蠕变以及过孔设计中的断裂、疲劳和层间开裂。
Semiconductor analysis with ANSYS tools often incorporates nonlinear behaviors, including package warpage, solder joint creep, fracture in through-silicon-via designs, fatigue and delimitation.
利用ANSYS工具,可以分析半导体的非线性特性,其中包括封装变形、焊接点蠕变以及过孔设计中的断裂、疲劳和层间开裂。
Semiconductor analysis with ANSYS tools often incorporates nonlinear behaviors, including package warpage, solder joint creep, fracture in through-silicon-via designs, fatigue and delimitation.
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