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- fatigue limit diagram 疲劳极限图
- The fatigue limit of 45 steel has increased by a fac-tor of 55 and 74%. 45钢的疲劳极限分别提高55%25和74%25。
- The forming limit of 3A21 Aluminum alloy sheet was tested and the forming limit diagram (FLD) was determined. 通过标准成形极限实验获得3A21铝合金板材的成形极限图(FLD);
- Compressive residual stress are the main factor in the increase of torsion fatigue limit. 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- Then,it was dissertated that the essentiality and applied outlook of the stress-based forming limit diagram(FLSD). 介绍了基于应力的成形极限判据(成形极限应力图)的应用前景;
- It is proved that plain concrete does not have a fatigue limit while for FRC it is uncertain. 结果素混凝土不存在疲劳机限;纤维混凝土是否存在确定的疲劳极限值仍属未知;
- The mechanical properties and forming limit diagram(FLD) are measured and the microstructure of different rolling state is analysed. 测定了该钢的力学性能和成形极限图(FLD),分析了不同轧态的微观组织。
- Compressive residual stress are the main factor in the increase of torsion fatigue limit . 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria(DFC). 摘要对板料成形中的成形极限应力图、最大变薄率、成形极限图以及韧性断裂准则等预测成形极限的方法,进行了综述和分析。
- Results showed that the fatigue behavior of the YW-1 adhesive beared a resemblance to that of the metal material and the fatigue limit value of the copper oxide-phosphate inorganic adhesive was equal to 41 25% of the static strength value. 结果表明 :磷酸氧化铜无机胶的抗拉疲劳特性与金属材料的特性较相似 ,该无机胶的抗拉疲劳极限为其静拉伸剪切强度的 41 2 5%25。
- After experimental data processing, material's viscousness coefficient was acquired and a new method to determine fatigue limit by the threshold of plasticity energy dissipation was given. 通过对试验数据的分析,求出了材料的黏性系数,给出了利用塑性能耗的起点确定材料疲劳极限的方法。
- The result indicates that the improvement of the fatigue limit is due to the nano-crystallization and severe plastic deformation in the surface layer induced by high-energy shot peening. 结果表明,高能喷丸后其表层组织发生严重塑性变形并实现组织纳米化,是提高弯曲疲劳寿命的主要原因。
- Because the HMA fatigue limit is the theoretical base of perpetual pavement design, to grasp the strain distribution and strain action of HMA layer is key for perpetual pavement design. 摘要沥青混合料疲劳极限的存在是永久路面结构设计的主要理论依据,因此掌握沥青层底应变的分布和应变行为规律是永久路面设计的关键。
- According to the fatigue limit theory, the cumulative damage method was used to calculate the pavement fatigue life, and the fatigue life of perpetual pavement test road was analyzed. 根据疲劳极限理论,提出永久路面疲劳寿命的累积损伤分析法,并用累积损伤法对试验路的疲劳寿命进行了计算分析。
- To improve this I made a modification from two sides:to increase the fatigue limitation of shaft and to decr... 改进后的导纸辊投入使用后,效果良好,经半年多运行,未发生轴头断裂现象。
- Three parameters quantitatively describe the fatigue limit, the toughness and the characteristic fatigue life of material in the model and a convenient method to obtain the parameters was mentioned. 该模型中的三个参数分别反映了材料的疲劳极限、韧性以及特征疲劳寿命,同时给出了求解这些参数的方法。
- She gave me a diagram of railway network. 她给了我一张铁路网图解。
- Zhou, Y. and K.W.Neale,“Prediction of Forming Limit Diagrams Using a Rate-sensitive Crystal Plasticity Model”, Int.J.Mech.Sci., Vol.37, pp.1-20, 1995. 庄伟伦,“应用有限元素法于板金成形极限之模拟分析”,硕士论文,成功大学机械工程研究所,1990年。
- He was beaten out with fatigue when he got home. 他回到家里时已是疲惫不堪。
- He pointed at the diagram to illustrate his point. 他指着图表来说明他的论点。