【单选题】【消耗次数:1】
钢筋的屈服强度是指()。
比例极限
弹性极限
屈服上限
屈服下限
参考答案:
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相关题目
【单选题】 钢筋的屈服强度是指(??)。
①  屈服下限
②  比例极限
③  屈服上限
④  弹性极限
【单选题】 钢筋的屈服强度是指:
①  比例极限
②  弹性极限
③  屈服上限
④  屈服下限
【判断题】 对于无明显屈服的金属材料,规定以产生2%残余变形的应力值为其屈服极限,称为条件屈服极限或屈服强度。
①  正确
②  错误
【判断题】 对于有明显屈服点的钢筋,采用屈服强度作为强度指标,对于没有屈服点的钢筋,采用残余应变为0.3%的强度值作为强度指标,称为条件屈服强度点强度。
①  正确
②  错误
【判断题】 工程中通常以产生 0.5% 的塑性应变所对应的应力作为屈服强度指标,称为名义屈服极限。
①  正确
②  错误
【判断题】 将钢材看作理想弹塑性材料的依据之一是其比例极限与屈服强度较接近,且屈服时应变很小,即将屈服前的σ-ε曲线简化为一条斜直线。(  )
①  正确
②  错误
【单选题】 应力-应变曲线有明显流幅的钢筋,其屈服强度的标准值取()。
①  比例极限
②  屈服下限
③  屈服上限
④  极限抗拉强度
【单选题】 低碳钢的屈服极限发生在拉伸过程中的()阶段。
①  弹性
②  屈服
③  强化
④  颈缩
【单选题】 对于无明显屈服点钢筋,设计时取( )作为强度设计值的依据。
①  条件屈服点
②  极限抗拉强度
③  极限抗压强度
④  屈服强度
【单选题】 有明显屈服台阶的钢材,其强度设计指标取()。
①  屈服强度
②  极限抗拉强度
③  比例极限
④  破坏强度
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