Analysis of Strength Factor for Non steady Creeping Crack Tip Field 非稳态蠕变二维裂纹尖端场强近似分析
A computation program has been developed, using a two dimension boundary element method, for calculation of stress strength factor at the welding crackle tip. 开发了二维边界元计算程序,用于计算焊接裂纹尖端应力强度因子。
The Calculation of Remaining Strength Factor of Spherical Shell Components with Spherical Pits 含球形凹坑球壳构件剩余强度系数的计算
As for the joining fillet welds, the mechanical conception of "the shear strength factor of fillet welds" ( or Weld Factor) is described by the use of shear mechanical models. 对联系角焊缝,按其剪切工作情况,应用剪切力学模型,从本质上阐释角焊缝剪切强度系数(英国劳氏规范中的WeldFactor,ZC新《海规》中译为焊接系数)的力学概念;
Calculating method and test analysis of stress and strength factor for deep fissures of roll compacted concrete finite boy 碾压混凝土有限体深埋裂缝应力强度因子计算方法试验分析
The concept of fly ash-saturation was put forward based on the index of maximum compressive strength and optimal unit strength factor of fly ash in cementing materials, respectively. 分别以砂浆抗压强度、粉煤灰单位强度因子为指标研究了砂浆体系中粉煤灰的最佳掺量范围。
The pseudo-force method is applied to calculate the compressive strength factor of the kinky propagated crack with the effect of interaction among cracks taken into account. 采用伪面力法计算了考虑相互作用的弯折扩展裂纹应力强度因子,并通过一些简化得到了显式的表达式。
Loading conditions and necessary strength of hull structure fillet welds are interpreted. The definition of shear strength factor of fillet welds and its application to design of the welds are enunciated. 说明船体结构角焊缝的受力分析及强度条件,阐述角焊缝剪切强度系数的涵义及其在填角焊缝设计中的应用。
In this paper, the assessment criteria of fracture strength for main parts of capel in hoisting is presented, the determination of fracture toughness and some stress strength factor are given. 介绍了连接装置关键零件&主拉杆和夹板的防脆断强度准则,给出材料断裂韧性的工程估算方法以及若干常见裂纹的应力强度应子计算式。
Interpretation of Stress strength Factor 解读应力强度因子
This paper gives the formula of the reciprocal of weight for the relative error or calculated length of the weakest side and the error of the weakest point. It may be represented by the formula of the strength factor. 本文导出它的最弱边边长相对误差的权倒数,以及最弱点点位误差的权倒数,它可以用图形强度公式来表示。
Its main characters are the wide value scale of singularity strength factor for some certain regional intervals, while curve of Dq-q becomes sharp, the left or right end of the curve f ( a) a drops. 主要特征是对一定的q区间奇异性强度因子α取值变宽,Dq-q曲线变陡,f(α)-α的左端点或右端点下降。
The behaviour of fatigue crack growth rate da/ dN and threshold of stress strength factor △ K_ ( th) in axle steel is investigated and calculated. 本文对车轴钢材料的疲劳裂纹扩展速率da/dN和应力强度因子门槛值△K(th)的特性进行了试验和计算。
Considering the randomicity of crack size and according to the change ratio of J-integral and the J-K relationship, we calculated the change curve of wood strength factor. 考虑到裂纹尺寸的随机性,根据J积分的变化率以及J-K的关系计算出木材强度因子的变化曲线。
Geological methods mainly include curvature method, structural stress modeling and strength factor computation of fault stress. 地质预测法主要有曲率法、构造应力场模拟法、断层应力强度因子计算法;
By defining a function between the embedded watermark strength factor and the energy of the wavelet trees in the wavelet domain, a new algorithm was proposed to embed a self-adapted watermark into the image. 介绍一种新型的水印&半脆弱水印,通过定义一个小波域内小波树的能量与水印嵌入强度因子之间的函数,提出了一个新的半脆弱水印算法,向图像中嵌入自适应的水印。
The optimal content of fly ash for optimum compressive strength of mortar differs from one based on optimal unit strength factor of fly ash. 砂浆抗压强度最高值和粉煤灰单位强度因子最大值处分别所对应的粉煤灰最佳掺量并不相同。
The short medium term ( T ≤ 1 year) anomalous variations prior to the earthquake over moderate magnitude are systematically studied for south and northeast China using the seismic strength factor M f value reflecting seismicity increase characteristics. 用反映地震活动增强特征的地震强度因子Mf值,系统研究了其在华南和东北地区中强以上地震前的中短期(T≤1年)异常变化。
Numerical calculation induces that the decrease of the interface defect size and the increase of the elastic modulus ratio of the matrix result in an obvious increase of the strength factor value of the shear stress. 由数值求解方法推导得出,减小界面缺陷尺寸或增加纤维与基体的弹性模量比,可以使该复合材料剪应力强度因子的水平值明显提高。
Study of the strength factor of assurance of concrete miniature block 关于混凝土小型砌块强度保证率的探讨
The increase in rotary velocity and strength factor of material, and the decrease in bending radius and hardenability value will leads increases in axial force and bending moment. 弯曲速度和材料强度系数的增大以及弯曲半径和硬化指数的减小会引起轴力和弯矩的增加。
Two new parameters, martensite transformation bond energetic factor and bond strength factor, are proposed to clarify the stability of austenite and the transformation of martensite. 提出用两个新的参数&马氏体转变能量因子和键强因子来考察奥氏体稳定性以及马氏体转变量。
OR value of symptoms in order to explore the link strength factor and permits. 以OR值探求症状因子与证的联系强度。
According to OR values, the symptoms can be drawn strength factor and the size of the contact card sort in order to identify factors in the diagnosis of symptoms of significance. 根据OR值,可以得出症状因子与证联系强度的大小排序,以明确症状因子在诊断中的意义。
Whether having the glass fiber grid or not, stress strength factor is in inverse proportion to the overlay thickness. It means that enlarging the thickness of overlay can control the crack reflecting. 无论有无玻纤格栅层,动态应力强度因子与加铺层厚度成反比,这证明了增加加铺层厚度有利于抑制裂缝反射。
The relationship between the phase spectrum and the feedback strength factor in the frequency domain is analyzed, and then the measurement algorithm based on the frequency domain of C factor is proposed, which is also verified through simulation. 在频率域下分析光反馈相位频谱和反馈水平因子之间的关系,进而设计频率域下反馈水平因子的测量算法,并仿真验证该算法。
In exploring the symptom factors associated with the permit, based on the symptoms to further explore the link strength factor and permits in order to understand the symptoms factor in the diagnosis of cards. 在探讨了症状因子与证联系的基础上,进一步探讨症状因子与证的联系强度,以了解症状因子在证中的诊断意义。
And then, the influence to the ultimate bearing capacity of each type of platform was researched by comparing the reserve strength factor between the defective and intact platform. 通过比较损伤平台与完好平台的强度储备系数,分析各种损伤类型对平台极限承载能力的影响。