crack initiation
[力] 裂纹萌生;裂纹开裂
2025-09-06 21:27 浏览次数 9
[力] 裂纹萌生;裂纹开裂
crack propagation initiation angle裂纹扩展开裂角
crack initiation point起裂点
crack initiation locus裂纹启裂迹线法
brittle crack initiation COD脆性启裂COD值
Time to Crack Initiation裂纹形成时间
crack-initiation parameter启裂参数
apparent crack initiation COD表观启裂COD值
crack initiation approach裂纹
the learner accumulated damage criterion for fatigue crack initiation life can be introduced easily by the model.
可方便地导出疲劳裂纹萌生寿命的线性累积损伤準则;
dynamic observation of crack initiation and propagation in sg cast iron weld was carried out using a self-made uniaxial tensile device and optical microscope.
利用自制拉伸装量在光学显微镜下对球状石墨铸铁焊缝冷裂纹的萌生与扩展进行了动态观察。
the fatigue crack initiation behaviour and its mechanism were investigated.
研究它们在循环加载下的疲劳裂纹萌生行为及其机制。
the expressions of predicting notch fatigue limits for crack initiation and non-propagation under a symmetrical loading are derived.
在此基础上,根椐已有假设,推导得出对称应力循环下裂纹萌生与止裂的缺口疲劳极限预测式。
fatigue lifetime of valve springs contains two parts: lifetime for crack initiation and another for crack propagation.
疲劳寿命一般包括疲劳裂纹萌生寿命和裂纹扩展寿命两部分。
the fractography of the fatigue crack initiation displayed cleavage facet and more second cracks after pre-training.
裂纹形成的断裂为穿晶解理机制,预应变可导致更多的二次裂纹。
crack initiation and propagation process in a356 aluminium alloy under impact load have been investigated.
研究了a356铝合金在沖击载荷作用下的裂纹萌生及其扩展过程。
because of the bad compatibility of wood flour and polyethylene, the crack initiation time shortened.
木粉与高密度聚乙烯的相容性不好,是裂纹引发时间缩短的主要原因。
the primary failure model is fatigue fracture that is always resulted by the crack initiation and propagation.
疲劳断裂是气门弹簧失效的主要模式,它是疲劳裂纹萌生及其扩展的结果。
our study points out that this test actually reflects the ability of material to resist creep crack initiation and propagation under multiaxial stress state.
研究表明,标準缺口持久试验的实质是反映材料在多向应力作用下的抗主裂纹萌生与扩展的能力。
according to the mode of crack propagation the mechanism of crack initiation and propagation was also discussed.
根据裂纹扩展方式的变化,对氢致裂纹萌生和扩展机制进行了讨论。
using one pass method the areas of partial stress concentration were laser-modified and the influence on fatigue crack initiation resistance was investigated.
研究无搭接激光单道扫描方式对材料局部应力集中部位进行表面改性及其对疲劳裂纹萌生抗力的影响。
the results shows that crack initiation induced by particles of additives or fillers.
结果表明,裂纹萌生是由较大的第二相颗粒引起的。
the fatigue crack initiation patterns and fatigue fracture mechanism were also discussed at different laser parameters.
探讨了不同改性工艺条件下疲劳裂纹萌生的方式和断裂的微观机制。
corrosion pitting also can lead to fatigue crack initiation depending on the component, the location of pitting, and cyclic loading conditions.
腐蚀斑点还会因不同的部件、斑点的位置和循环载荷状况,导致一些不同的疲劳裂纹。
in the strain-controlled test, the fatigue life of crack initiation is measured for the welded joint.
在应变控制试验条件下,得到了焊接接头疲劳裂纹萌生寿命。
the feature of macro-profile is analyzed, and the crack initiation and extending mechanism of brake disc is discussed.
分析了制动盘裂纹剖面的宏观形貌特征,并对制动盘裂纹萌生和扩展机理进行探讨。
by inspect and analysis to fracture morphology, the effective way to delay crack initiation of gear teeth and raise life of bending fatigue was put forward.
通过对断口形貌观察分析,提出了延缓齿轮轮齿裂纹萌生,提高抗弯曲疲劳寿命的有效途径。
crack initiation and propagation in a porous composite (concrete) were analysed inthe light of its characteristic structual features.
从结构特征出发,分析了多孔复合体的混凝土中的裂纹萌生和扩展过程。
the result shows: the local residual tensile stress and cyclic compressive loading thrust fatigue crack initiation and propagation in the size of compressive plastic zone.
结果表明,疲劳裂纹是在残余拉应力和循环压应力作用下萌生和扩展的,压塑性变形是裂纹萌生和扩展的必要条件。
the results indicate that the crack initiation and propagation mechanism depends on the orientation of pearlite lamellae with respect to the tensile axis.
结果表明:珠光体裂纹萌生与扩展方式取决于珠光体层片和拉伸轴的位向关系。
the advances in the research of fatigue creep interaction were introduced, including the mechanisms of micro crack initiation and growth and the development of multiaxial fatigue creep test.
介绍国内外疲劳—蠕变交互作用研究的一些进展,其中包括微观裂纹萌生及扩展机理的研究、高温多轴疲劳—蠕变实验的发展。