For aging at temperatures below 300 ℃, the alloys present a continuous precipitation process, which make the ultimate tensile strength increased.
在真应变η=6时效,合金具有高的时效强化效应,其极限拉伸强度增幅可达约12%;而在真应变η=9。
Up to now there still exist many problems in the ultimate tensile strength analysis of rectangular plates with cracks.
本文利用弹塑性有限元分析结果对现有的裂纹板的拉伸极限强度简化公式进行了修正,得到了与实验结果比较吻合的修正公式,并且以受单向拉伸、具有中心穿透裂纹的正方形板为例,借助弹塑性断裂力学的理论推导了断裂控制基础上该材料的极限拉伸强度计算公式,从而从理论上解释了修正公式的合理性。
The effect of the crack eccentricity ratio on the stress intensity fact or and the ultimate tensile strength for cracked ductile plates was investigated in this paper.
本文在有限元计算的基础上对具有偏心裂纹缺陷的矩形板的应力强度因子和极限拉伸强度进行了分析。
The relationships of solidification time ( τ ), temperature gradient ( G ), freezing index (f i ),temperature gradient acceleration ( a GAP ) , dendrite arm space ( λ DAS ), hole ratio ( P ) and ultimate tensile strength ( σ b) of the cylindrical ZL105, ZL101, ZL109 Al Si alloy castings have been studied under the condition of the sand mold casting .
针对ＺＬ１０５，ＺＬ１０１，ＺＬ１０９铝硅合金圆柱体铸件，在砂型铸造条件下，研究了凝固时间τ，温度梯度Ｇ，凝固指数ｆｉ，温度梯度加速度ａＧＡＰ与铸件二次枝晶间距λＤＡＳ，孔洞率Ｐ和极限抗拉强度σｂ之间的关系。
Through experiments study,the effects of local bending to ultimate tensile strength,loading velocity rate and process to elastic modulus of FiBRA style AFRP tendons were analyzed,and stress levels to relaxation of FiBRA style FRP tendons were researched,and the.
通过试验研究,分析了局部弯折对芳纶纤维增强塑料(AFRP)筋极限抗拉强度、加载速率和加载历史对编织型芳纶纤维筋(FiBRA)型AFRP筋弹性模量,以及应力水平对FiBRA型AFRP筋松弛率的影响,建立了规格为FA11的FiBRA型AFRP筋的松弛率计算公式。
The poly-fit equation takes into account the effects of the eccentricity ratio, yield ratio of material and the nominal crack length and gives satisfactory accuracy comparing to the experiment results.
该回归公式包含了多个参数对板的极限拉伸强度的影响，与实验结果吻合较好。
Studies on the Elastic Modulus and Tensile Breaking Point of Rice Internodes and Related Characters;
水稻节间的弹性模量和拉伸强度极限及相关性状的研究
The correlation between the compressive strength and axial tensile strength of RCC with placing joint and ultimate tensile strain of placing joint of RCC layers have been obtained.
通过试验研究给出有层面碾压混凝土抗压强度、面轴拉强度与层面极限拉伸值间相关关系。
determination of the apparent initial circumferential tensile strength
表面内周拉伸强度的测
V-belts--Tensile strength and elongation test method
GB/T3686-1998V带拉伸强度和伸长率试验方法
Evaluation of Adhesion Strength of High-Strength Coating by Symmetrical-Incision Tensile Testing and Analysis of Its Plane Stress bv Finite Element Method
对称切口拉伸法评价高强度涂层及平面应力有限元分析
Testing Method for Tensile and Shear Strength of High Strength Photosensitive Glue
高强度光敏胶拉伸剪切强度测试方法
Flat transmission belting--Test method of full thickness tensile strength and elongation
GB/T6761-1986平带全厚度拉伸强度和伸长率测定方法
The variation of ultimate tensile strength with length for amosite crocidolite, chrysotile is shown in Table 2.10.
铁石棉，青石棉和温石棉的极限抗拉强度随长度的变化情况见表2．10．
repeated bending stress strength
反复弯曲疲劳强度极限
crushing strength at elastic limit
弹性极限的抗压强度
steel has great tensile strength
钢有极高的抗拉强度
The Methodology and Analysis of Computing the Ultimate Strength of Hull and Damaged Hull;
船体极限强度及受损船体剩余极限强度分析
Research of the Preparation and Properties of the UPR Resin with High Tensile Strength and High Elongation at Break
高拉伸强度高断裂伸长率UPR制备与性能研究
The relationship between drawing top limitation and characteristics of scallop formation and thickness irregularity along article perimeter is found.
确定了极限拉伸程度与齿槽形成特性和零件周边壁厚差特性间的关系。
testing methods for tensile strength of adhesives
胶粘剂拉伸强度试验方法
testing methods for shear strength of adhesive bonds by tensile loading
用拉伸负荷测定粘合剂剪切强度
tension-tension fatigue strength
正交二向拉伸应力作用下的疲劳强度