| 1. | Model for rock burst failure and its critical values of acoustic and electromagnetic emission
煤岩冲击破坏模型及声电前兆判据研究 |
| 2. | The numerical simulation of high velocity impact fracture process using square notched specimens
带长方形切口式样的冲击破坏数值模拟 |
| 3. | Standard test method for measuring the damage resistance of a fiber - reinforced polymer matrix composite to a drop - weight impact event
测量纤维增强高聚物基质复合物耐落锤冲击破坏的标准试验方法 |
| 4. | The result shows that the impact strength of the new developed plastic packing box is enough , the impact breakage is due to the unqualified raw material of box
结果证明，新研制的某炮弹塑料包装筒的结构设计满足冲击强度的要求，其产生冲击破坏的原因是包装筒塑料原材料不合格。 |
| 5. | The result indicates the relative value of hazard on the basis of improved formula can embody accurately the pound - destroy effect of hillslope debris flow . it conforms to reality
结果表明，改进公式计算出的危险度相对大小能够很好地体现山坡泥石流的冲击破坏效应，符合区域实际情况。 |
| 6. | To determine the reason of impact breakage of new developed plastic packing box for certain cannonball in drop test , this article derives the actual stress formulas in the position of impact breakage
摘要为确定新研制的某炮弹塑料包装筒在跌落试验中，产生冲击破坏的原因，通过理论计算和试验研究。 |
| 7. | This dissertation investigates the influences of internal press and missiles shape on deformation and rupture of a multi - span thin - walled metal tube that struck by a large - mass and slow - speed missile transversely . 103 impact tests were conducted on a thin tube ( d / t = 44 ) either empty or filled with water using a missile ( dm / t = 6 ) with various nose shapes ( flat - nosed , hemisphere - nosed and conical - nosed )
采用三种弹体(平头、半球形和圆锥头，弹体直径与管壁厚度之比d _ m t = 6 )对空管和高压充水薄壁钢管(径厚比d t = 44 )进行了冲击破坏实验，预加工作内压分别为0mpa ， 5mpa ， 10mpa和15mpa 。 |
| 8. | Part four is the hazard assessment of hillslope debris flow . because the hazard of hillslope debris flow mainly is pounding , the former formula ( hazard = magnitude x probability ) ca n ' t assess accurately the hazard of hillslope debris flow . applying the law of conservation of energy , we improved the formula as : hazard = energy x probability , and examined it on the basis of concrete example
鉴于山坡泥石流的危险性主要表现为冲击破坏，过去的泥石流评价公式，即“危险度=规模频率”已不能很好地评价山坡泥石流的危险性，因此我们运用能量守恒的观点，将泥石流的评价公式改进为“危险度=能量频率” ，并以具体实例加以检验。 |
| 9. | Polarization microscope had observed that the size of sphere crystal of pp after adding organic rigid particles became smaller , the excellent compatibility of interphase between matrix and organic rigid particles in composite has been proved , and the organic rigid particles were drew out into cavities from matrix in the photograph of the impact breaking section by sem . the reason of enhanced toughness of the composite is that the material absorbed amount of energy at forming cavities , which is the mechanism of the pp composite toughened with the organic rigid particles
偏光显微镜显示加入有机刚性粒子可使pp的球晶尺寸减小， sem观察到复合材料中基体材料和刚性粒子的界面相容性较好，在冲击破坏的材料断面上，刚性粒子明显被拔出形成“空穴” ，这些微小空穴较易产生而吸收能量，从而提高了材料的断裂韧性，这是刚性粒子复合聚丙烯的增韧机理。 |
| 10. | Research work described in this dissertation consists of four parts : application of finite element methods ( fem ) in the study of pull out tests of single fiber reinforced composites ( sfrc ) , fem study of fragmentation tests for single fiber reinforced composites , monte carlo simulation of fragmentation tests for single fiber reinforced composites , and a simulation of impact failure behaviors of fiber composites with a mesh free method - the sph method
全文论述从四个方面展开的工作：单纤维复合材料抽拔试验的有限元数值模拟，单纤维复合材料逐节断裂试验的有限元数值模拟，蒙特卡罗方法模拟单纤维复合材料受拉破坏过程，无网格sph算法在复合材料受冲击破坏过程中的v _ ( 50 )数值模拟。 |
