| 1. | Resistance function of rock joints to stress wave propagation 岩体裂隙的分形研究 |
| 2. | Three - dimensional stress wave propagation in fluid - saturated porous media 液饱和多孔介质中三维应力波的传播 |
| 3. | The influence of stress wave propagation on high acceleration measurement of projectile 应力波传播对弹丸实测超高值加速度的影响 |
| 4. | With the help of finite element method ( fem ) , stress wave propagation in pipe piles was studied in this paper for the benefit of engineering tests 本文通过有限元这种数值方法对应力波在管桩中的传播现象进行了较为全面的研究,以对实际的检测有所帮助。 |
| 5. | In chapter 2 , based on generalized characteristics theory , characteristic analysis is carried out on the problem of stress wave propagation in orthotropic fluid - saturated porous media under longitudinal impacting 在第2章中,根据广义特征理论,对正交各向异性液饱和多孔介质在纵向冲击载荷作用下的应力波问题进行了特征分析。 |
| 6. | In order to proof the program ' s effectiveness , we made some experiments on ly - 12a1 by shpb . in addition , based on the pochhammer - chree ' s theoretical solution about the stress wave propagation in infinite cylindrical bar , a numerical approach for analyzing dispersion in shpb experiments is developed 由于应力波在杆中传播时存在弥散效应,在hopkinson杆实验中,采用杆中某处的应变来代替杆与试件接触端面处的应变,这必然会因为应力波的弥散效应给实验结果带来偏差。 |
| 7. | Non - homogenized dynamic method of cell ( nhdmoc ) is a method of investigating stress wave propagation in laminated materials , the formula and initial boundary conditions were derived for the numeric simulation of stress wave propagating with nhdmoc under the condition of one dimension strain , the corresponding program was designed and checked 非均质化动力学元胞法( nhdmoc )是研究层合材料中应力波的新方法,本文整理、推导了应用nhdmoc数值模拟一维应变条件下应力波的计算公式以及初值条件,编制了计算程序,并进行了验算。 |
| 8. | Adopting relatively simple mechanical model and predigested boundary condition and taking a straight bar applied one end with an semi - sine impulse to simulate the rigid target impacted by a projectile as an example , the relation between the stress wave propagation and acceleration of projectile has been analyzed by theoretical deduction and computer simulation 摘要采用较为简单的力学模型和简化的边界条件,以直杆一端施加一半正弦载荷脉冲和模拟弹体冲击刚性靶为例,用理论推导和计算机仿真的方法分析应力波传播和弹体加速度的关系。 |
| 9. | Laws of propagation and attenuation of spherical stress wave in the geologic media have been studied in detail by means of mini - chemical explosion test in laboratory in this paper . the lows are fundamental to improve and develop theoretic models for underground explosions ( tamped and cavity decoupled ) on the stress wave propagation , safety and containment during the explosion 运用微型药量化爆模拟试验可以比较深入、细致地研究地质介质中球形发散应力波的传播、衰减规律,这对于改进、发展用于估算地下爆炸(填实和空腔解耦)应力波的传播及安全封闭的理论计算模型是至关重要的基础资料。 |