Longitudinal crack of drill pipe box joint is brittle fracture at low stress.
钻杆接头的各种纵向开裂属于低应力脆性断裂。
For shape of CC beam blank is complex, there are more rate of longitudinal crack on the surface.
连铸异型坯由于其形状复杂，表面纵裂纹发生率较高。
Objective to discuss the cause of longitudinal crack in high-fill roadbed and treatment countermeasure.
目的：探讨高填方路基纵向裂缝产生的原因和处理对策。
Conclusion it has favorable effect adopting the grouting technique to deal with longitudinal crack in high-fill roadbed.
结论：采用压浆技术对高填方路基纵向裂缝进行处理具有良好效果。
The study focused on the relation between upstream flow velocity and surface longitudinal crack under the condition of blowing gas.
本文针对板坯结晶器内的钢液流动特征进行了物理模拟，重点研究了吹气条件下流场的上循环速度与表面纵裂纹的关系。
The results show that the surface longitudinal crack of hot-roll Q345B medium plate is caused by inclusion and surface longitudinal crack of slab.
结果表明，热轧Q 345 B中厚板表面纵裂纹是由于铸坯中存在夹杂物及铸坯纵裂引起的。
We analyse the formation Cause of longitudinal crack of the strip in double - roll strip continuous casting using metallographic technique and electron microprobe.
用金相技术结合电子探针对双辊薄带连铸带坯的纵裂纹成因进行了分析。
Materials and methods: Making the animal model of the longitudinal crack and horizontal defect on the weight-bearing area and non weight-bearing area of the medial femoral condyle on rabbit.
材料和方法：制做兔股骨内髁关节软骨负重区和非负重区纵行裂伤和水平缺损动物模型。
Normal service life of U74 heavy rail and service life of the damaged rail are estimated by fracture dynamical analysis and possible mechanism on the longitudinal crack on the rail discussed.
通过断裂力学分析，估算出u 74重轨的正常使用寿命及伤轨残余使用寿命；探讨了钢轨纵裂的可能机制。
The stress required for producing internal crack decreases since there are loci of cracks in the slab caused by the surface crack, so the longitudinal cracks from inner to surface form easily.
由于铸坯表面裂纹形成的裂纹灶，降低了产生内裂所需要的应力值，易于形成内、外相连的纵裂。
The random crack core theory and model for predicting the longitudinal tensile strengths of unidirectional composites is built.
建立了预测单向复合材料纵向拉伸强度的随机核理论与模型。
Based on meeting the requirements of flexural strength, the effects made by ratio of longitudinal reinforcement on deflection and maximum value of crack width are analyzed.
在满足正截面承载力要求的基础上，分析了纵向配筋率的变化对挠度及最大裂缝宽度的影响。
Based on the underground of high efficient CC in Ma 'steel, the longitudinal surface crack and centerline crack, the uppermost defects of beam blank CC production are studied.
针对马钢异型坯高效连铸的背景，分析了异型坯生产中铸坯质量的主要缺陷类型：表面纵裂和中心裂纹。
Analyses the cause for the crack resulting from the non-fusion in the longitudinal weld seam of a power plant boiler cylinder, and suggests corrective actions to eliminate the defect.
针对一台电站锅炉锅筒纵焊缝未融合引起的裂纹进行分析，并提出缺陷修复的办法。
The fatigue crack propagation rate (FCPR) of as-rolled AM60 in the longitudinal direction is higher than that of the transverse direction.
轧制AM60的横向疲劳裂纹扩展速度（FCPR）明显地高于纵向。
The self-consistent finite element method is used to evaluate longitudinal effective Young's modulus and shear modulus for unidirectional fiber composite containing the fiber-end crack.
计算了含有纤维端头裂纹的单向短纤维复合材料的有效纵向拉伸模量和纵向剪切模量，并分析了体分比、刚度比、长径比等物理、几何因素的影响。
The crack sensitivity of hypo-peritectic steel, its formation mechanism and factors are discussed, and on the analysis, the reasons and factors on longitudinal surface crack are found out.
本文从亚包晶钢的裂纹敏感性，表面纵裂形成及影响因素等方面进行讨论，初步阐述了亚包晶钢圆坯表面纵裂形成原因及各种因素对表面纵裂的影响。
This paper analyzes the composition of liquid steel on the high - temperature mechanical property of steel and longitudinal surface crack of CSP slab.
从钢水成分影响钢的高温力学性能的角度，研究钢水成分对钢的高温力学性能和CSP薄板坯表面纵裂的影响。
Studied the reason and the countermeasure of longitudinal surface crack of Ma-Steel beam blank.
研究了马钢连铸异型坯表面纵裂纹的成因和对应措施。
Axially symmetric longitudinal mode guided waves are more sensitive to the circumferential crack defects, which is basically consistent with the theoretical analysis.
轴对称的纵向模态导波对于周向裂纹缺陷较为敏感，这与模拟结果比较接近。
The longitudinal corner crack scrap of Billets disappeared almostly after four and half months test. Yielded the good metallurgical results.
经过几个月的实验，小方坯角部纵裂废品基本消失，取得了良好的冶金效果。
The paper analysed the causes of longitudinal comer crack of CC Billets of Xinyang Iron&Steel Co. and proposed the measures to control and solve the defect.
分析了信钢小方坯产生角部纵裂纹的原因，提出了相应的控制措施及解决方法。
Residual stress of longitudinal submerged arc welded pipe after welding is the major reason caused welded pipe stress corrosion crack, its stress level directly decide pipeline safety in service.
直缝埋弧焊管焊后残余应力是导致焊管应力腐蚀裂纹产生的主要原因。
The reason for longitudinal-crack steel leak is analyzed, some measures formed, better result got.
对板坯连铸机产生的纵裂漏钢原因进行了分析，通过制订改进措施，取得了较好的效果。
The longitudinal surface crack on thin slab is a serious quality defect at thin slab continuous casting and rolling process.
薄板坯表面纵裂是连铸连轧生产线上的严重质量缺陷。
The utility model resolves the question that the anchorage clip is easy to crack along the longitudinal recess because of uneven force, which is characterized by high intensity.
解决了锚具夹片因受力不均而容易沿竖槽开裂的问题，具有强度高的特点。
The utility model resolves the question that the anchorage clip is easy to crack along the longitudinal recess because of uneven force, which is characterized by high intensity.
解决了锚具夹片因受力不均而容易沿竖槽开裂的问题，具有强度高的特点。
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