| 1. | Low - cycle fatigue life prediction under multiaxial non - proportional loads 多轴非比例加载低周疲劳寿命预测方法的研究 |
| 2. | For the multiaxial proportional loading , the dispersion degree of fatigue cracks was low 在多轴比例加载条件下,裂纹分布的分散性较小。 |
| 3. | In this paper , the stress - strain analysis and life prediction for the notched shafts were studied under multiaxial constant amplitude proportional loading 本文针对多轴比例恒幅加载情况下的缺口件进行了应力应变分析和寿命预测研究。 |
| 4. | The relationship between the cyclic stress response of tension and torsion and the cycle number were measured and studied subjected to proportional and non - proportional loadings 分别测试和研究比例与非比例拉扭加载下拉与扭的应力响应值随循环数的变化关系。 |
| 5. | The multiaxial cyclic characteristic of gh4169 was investigated for the thin tubular multiaxial fatigue specimen under proportional and non - proportional loading at high temperature 摘要针对拉扭薄壁管疲劳试样,在控制应变拉扭循环加载下对高温合金材料gh4169的循环特性进行试验研究。 |
| 6. | Cohesive models furnish a complete theory of fracture that is not limited by any consideration of material behavior , finite kinematics , non - proportional loading , dynamics , or the geometry of the specimen 内聚模型作为一个完全的断裂理论,不被任何材料特性、有限运动、非比例载荷、动力学或是试件的几何尺寸所限制。 |
| 7. | Second , a few methods presented by some scholars were used to calculate the elasto - plastic strains and stresses at the notch tip subjected to proportional loading . at the same time , a new method is proposed to calculate the stresses and strain for the same specimen 第二,针对多轴比例加载的情况,对缺口件采用了多种已有的方法进行了弹塑性应力应变的计算,并提出了一个新的计算公式。 |
| 8. | In recent years , pro f bazant has been devoting to the work ofmicroplane theory microplane theory a theory on the basis of micro - mechanics , has excellent ability of describing not is iv only the concrete constitutive behaviors under non - proportional load but also the damage behavior of concrete under multi - axial stresses 著名学者z . p . bazant教授近十年一直致力于微平面理论的研究,该理论对于描述混凝土在非比例加载下的本构行为和混凝土在多轴应力作用下的损伤行为具有优势。 |