stress intensity
[力] 应力强度
2026-04-14 10:18 浏览次数 22
[力] 应力强度
stress s intensity factor应力强度因子
stress and intensity应力与强度
stress field intensity应力场强度
stress s intensity应力强度
stress field intensity method应力场强法
stress field intensity model应力场强模型
Stress Field Intensity Lower应力场强度降低
stress-intensity intervene应力
stress field intensity factor应力强度因子
a formula for calculating dynamic stress intensity factor of three-poi nt bending specimen is obtained by taking the impact velocity effect on dynamics tress intensity factor into account.
采用振动理论分析了三点弯曲试样的动态响应,得到了一个计及沖击速度影响的动态应力强度因子计算公式。
the results show that when the annular crack is away from the interface, the normalized stress intensity factors at the crack tips decrease with increasing time.
结果表明,给定长度的环形裂纹在尚未接触界面时,其两端正则化的型和型应力强度因子均随时间增大而减小。
based on this kind of crack element, and by introducing parametric equation of ellipse, a new method for estimating stress intensity factor is proposed.
基于这种裂纹单元,作者引入椭圆参数方程,推出一种计算裂纹前缘点应力强度因子的新方法。
in addition, the comparison to numerical calculation validates the application of the propose stress intensity factors measurement method.
实验结果以及数值分析表明该方法可以应用于实际结构裂纹的应力强度因子的测量,并具有很高的工程精度。
based on testing results, the relationship between velocity of granite subcritical crack growth and stress intensity factor, and the fracture toughness are obtained respectively.
根据试验结果,得到了花岗巖亚临界裂纹扩展速度与应力强度因子之间的关系和花岗巖的断裂韧度。
the threshold value of the crack opening stress intensity factor is formulated as a function of the hardness, the applied stress and the crack extension.
小裂纹的张开应力强度因子门槛值可近似用一个包括材料硬度、应力水平及裂纹扩展量等参数的函数表示。
based on the principles of transmitted caustics as well as photoelasticity, the two techniques in determining stress intensity factors (sif) are compared.
以光弹性法及焦散线法的基本原理为基础,对两种方法在确定应力强度因子方面进行了比较。
through computing the opening displacements in the vicinity of the crack tip, the stress intensity factor at the crack tip can be obtained by displacement extrapolation method.
通过计算裂纹尖端附近的张开位移,利用位移外推插值法得到裂纹尖端的应力强度因子的结果。
numerical examples show that the present implementation effectively computes stress concentrations and stress intensity factors at cracks, and crack propagation can be accurately modeled.
数值结果表明,该方法可以有效地计算裂纹尖端的应力集中和应力强度因子,并能準确地模拟裂纹的传播。
both two-dimensional and three-dimensional analysis is performed to prove the feasibility and the precision of the superposition integral method used in calculating the stress intensity factor.
同时本文分析了迭加积分法应用于线弹性动态应力强度因子计算的可行性与精度,并建议用于实验数据的处理中。
this paper describes how the new finite element methods are used to: calculate root fillet stress and stress distribution, root stress intensity factor, tooth deformation and contact stress.
本文论述了如何使用有限元法计算采掘机械齿轮齿根应力和应力分布,齿根应力强度因子,轮齿变形和接触应力及分布。
through the calculation of amendatory stress intensity factors of the crack-tip under the condition of small scale yielding, the disadvantage of the method of equivalent crack length is found.
简要介绍了断裂力学的发展,通过在小范围屈服条件下裂纹尖端修正的应力强度因子的计算,发现用等效裂纹长度方法的不足。
the outlined models for estimation of crack extension angles rely purely on the stress intensity factors at the crack tip which can be determined by finite element procedures.
用这些模型预测裂纹扩展角时,参数都归结为裂尖处的应力强度因子,而应力强度因子可以用有限元方法求得的。
the evaluation by using stress intensity factor k in the linear elastic fracture mechanics is carried out, because the contact surface of the joint by spot welding can be considered annular crack.
点焊点处的接触界面可以看作是一种环形裂纹,对其疲劳强度的评估可以通过计算线性弹性断裂力学中的应力强度因子k来完成。
expression for total stress intensity index with different stress path undrained under random initial consolidation stress is established based on the uniqueness of effective stress intensity index.
依据有效应力强度指标的唯一性,建立了任意初始固结应力状态下不同应力路径不排水时的总应力强度指标表达式;
in this thesis, the stress intensity factors of top-down cracks caused by loading are calculated using three dimensional finite element model and compared to the results of plane strain model.
本文采用三维有限元模型分析了荷载作用下自上而下裂缝尖端的应力强度因子,并与二维平面应变模型分析的结果进行比较。
we study stress intensity factor of thick wall cylinder with cracks under dynamic load.
研究了动载荷作用下带裂纹厚壁筒的应力强度因子。
based on these results, discussed the method of calculating the crack stress intensity factor by using fracture mechanics.
在此基础上,详细讨论了使用有限元方法计算裂缝应力强度因子的方法。
the ultimate fracture surface was also proposed. the calculated alternating stress intensity of the structure confirmed the fatigue failure position ulteriorly.
对结构交变应力强度的计算进一步确定结构疲劳失效发生的位置。
for the question of the calculation of the stress intensity factors for the three-dimensional, traditional methods of generation nodes mainly rely on our hands, then generate elements and structures.
但在对三维裂纹的应力强度因子求解问题上目前所采用的方法主要是靠人工手动地生成节点,然后再生成单元和结构。
the stress intensity factor on the crack tip increases with the modulus increase of asphalt overlay.
同时,裂缝尖端的应力强度因子将随着沥青加铺层模量的增加而增大;
stress intensity factors at vertical crack tips and numerical results of pressure under punch are obtained.
最后得到垂直裂纹端点处的应力强度因子和压头下方的压力数值。
because of the complexity in mathematics and the physics, solving the three-dimensional dynamic stress intensity factors is certainly limit.
三维裂纹在动态断裂力学中由于其数学和物理上的复杂性,求解其动态应力强度因子受到一定的限制。
the result indicates that the maximum of dynamical stress intensity factor arrives behind the load time and increases with the size of thick wall cylinder.
结果表明动态应力强度因子的最大值在加载时间上有滞后性现象,它的最大值随厚壁筒尺寸增加而增加。
in this article a solution is found of the stress intensity factors in five cases. the solution is based on airy stress function and the method of weighted residuals.
求解了五种情况的应力强度因子,采用的方法是艾雷应力函数和加权残数法。