TL and TR specimen crack extension direction is consistent with the orig…
并且含水率对各个方向木材断裂韧度的影响趋势是一致的。
The stress field near crack tip is an important factor to effect crack extension.
裂纹缺陷周围的应力变形场是影响裂纹扩展的重要因素。
This treatment has an effect on delaying the crack extension and hence suppressing its cracking.
这一处理方法起到延缓裂纹扩展、抑制起裂的效果。
Numerical method for crack extension analysis based on fatigue fracture process of rock materials;
工程控制爆破 ，要研究岩石的定向断裂的裂纹扩展。
A criterion for the crack extension rate and direction is proposed and compared with other criteria.
文中对裂纹扩展长度和方向提出了一种扩展准则，并与其他准则和实验结果进行了比较。
Fracture toughness (Kc). Critical value of the stress intensity factor for which crack extension occurs.
断裂韧度(Kc)：发生裂纹扩展时应力强度因子的临界值。
The crack growth rate was decreased with crack extension because of the sliding contact of the crack faces.
随着裂纹的扩展，裂纹扩展速率由于裂纹面的滑移接触而减小。
The virtual crack extension method has been utilized to simulate the J-integral of non-uniform welded joints.
采用虚拟裂纹扩展法对焊接接头力学不均匀体的断裂参量J积分进行了数值模拟分析。
Suitable heat treatment will increase the crack extension energy, and improve the plasticity of the composite.
适当的热处理可提高裂纹扩展所需塑性功，从而在一定范围内改善复合材料塑性。
Change of section appearance is related to stress concentration of glass fiber on the base resin and on hindering of crack extension.
断面形貌的变化与玻纤在基体树脂中的应力集中作用及对裂纹扩展的阻碍作用有关。
The energy release rate and failure criterion for mixed mode are investigated by means of the method of equivalent linear crack extension.
利用当量直线裂纹扩展法研究复合型裂纹的能量释放率及相应的断裂判据。
Theoretical study shows that the crack extension under shear loading is caused by tensile stress, and it does not belong to shear fracture.
理论分析证明，在剪切载荷作用下裂纹扩展是由于拉伸应力引起的，并非剪切破坏。
The whole life of an equipment part consists of the crack forming life (i. e. , the fatigue life or the damage accumulation life) and the crack extension life.
机械零（构）件的寿命由裂纹形成时间（即疲劳寿命）和裂纹扩展寿命两部分组成。
The stress corrosion mechanism in mixed solutions was studied based on the metallographic observations of scanning fracture shapes and crack extension direction.
根据扫描断口形貌和裂纹扩展途径的金相观察，还探讨了在混合溶液中的应力腐蚀机制。
Only if this short crack extends long enough and blunted wide enough, can it affect the principal crack extension and the distribution of stress and plastic strain.
只有小裂纹扩展到足够长并钝化到足够宽，才能够影响主裂纹的扩展及其前端应力、应变的分布。
In order to predict effects on machined surface by developed notch-crack, crack extension mechanism of notch-crack-tip was investigated in cutting brittle materials.
为预测缺口裂纹对加工表面形成的影响，研究了切削脆硬材料时缺口裂纹的扩展。
Based on the boundary variational theorem, the energy release quantity and energy release rate (dynamical crack extension force) along the crack boundary are obtained.
由此求得动态裂纹扩展时，沿裂纹边界的能量释放量和能量释放率(动态裂纹扩展力)。
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 impact toughness, crack forming energy and crack extension energy of complex modified medium manganese austenitic steel. Are increased by 263%? 288% and 232% respectively.
复合变质中锰奥氏体钢的冲击韧度、裂纹形成功和裂纹扩展功分别比原来提高了263%、288%和232%。
The calculated method of crack extension of arch DAMS is proposed using this strength criterion and finite element discrete crack model, and with some practical examples given.
运用上述强度准则及有限元分离裂缝模型提出了拱坝开裂的计算方法，并给出了应用实例。
Within the range of test temperature, the factors controlling the toughness are fracture loads, the lengths of fibrous crack, and the energy absorbed by each fibrous crack extension.
在试验温度区内，控制韧性的因素是断裂载荷、纤维裂纹长度和单位纤维裂纹扩展能量。
This result supports previous fracture models that are based on absolute reaction rate theory and predicts an exponential dependence of crack extension rate on applied stress intensity.
此结果支持了基于绝对反应速率理论的光纤断裂模型，并预测了裂纹扩张速率与外部应力强度的关系。
It is found that for 3d surface cracks, the interactions of cracks affect crack growth and extension in two aspects, i. e. the interaction either prompting crack extension or restraining it.
研究结果表明，三维裂纹间的相互作用对裂纹萌生和扩展主要有两种影响，即相互促进或彼此抑制，裂纹演化过程中其空间位置起主要作用。
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.
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。
Then single aggregate concrete specimens is established, the influence of interface strength to the macro-strength is discussed, while the shape of aggregate on the crack extension is investigated.
建立单颗骨料混凝土试件，探讨界面强度对混凝土宏观强度的影响，同时探讨骨料形状对裂纹扩展的影响。
The crack growth rate without the influence of crack surface contact was determined by extrapolating the relationship between the crack growth rate and the crack extension to the zero crack length.
通过外插裂纹扩展速率与裂纹长度之间的关系， 可近似得到裂纹长度为零时无裂纹面滑移接触影响的裂纹扩展速率。
In this article, I crack open acts_as plug-ins so you can see the extension model from the inside.
在本文中，我将剖析acts_as插件，您可以了解扩展模型的内部。
On the contrary, the easily broken particles enhance the extension stress at the crack tip, and hence the propagation rate of the crack.
反之，易破碎的粒子则增加了裂纹尖端的扩展应力，提高了裂纹扩展速率。
Depending on their extension, a differentiation is made between macro and micro-crack.
按裂纹延伸长度，可分为宏开裂和微开裂。
Established the calculation model of waterproof layer tensile above bridge crack, compute a minimum extension and strength the waterproofing layer must have hi a certain width crack.
建立了桥面裂缝之上防水层张力的计算模型，有效地计算出桥面混凝土一定宽度裂缝上防水层须具备的最小延伸率和拉伸强度。
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