选择题:两根长度相等、直径不等的圆轴受扭后,轴表面上母线转过相同的角度。设直径大的轴和直径小的轴的横截面上的 题目分类:华北水利水电大学材料力学 题目类型:选择题 查看权限:VIP 题目内容: 两根长度相等、直径不等的圆轴受扭后,轴表面上母线转过相同的角度。设直径大的轴和直径小的轴的横截面上的最大切应力分别为max11和max22,切变模量分别为G1和G2。试判断下列结论的正确性。 A.max11>max22; B.max11<max22; C.若G1>G2,则有max11>max22; D.若G1>G2,则有max11<max22。 参考答案:
Now the air pollution in this city ______ more and Now the air pollution in this city ______ more and more serious with each passin 分类:华北水利水电大学材料力学 题型:选择题 查看答案
应力-应变曲线的纵、横坐标分别为σ=FNN/A,ε=△LL//L,其中() 应力-应变曲线的纵、横坐标分别为σ=FNN/A,ε=△LL//L,其中() A.A和L均为初始值 B.A和L均为瞬时值 C.A为初始值,L为瞬时值 D. 分类:华北水利水电大学材料力学 题型:选择题 查看答案
[填空题,5分] My son has no intention of (spend) a voc [填空题,5分] My son has no intention of (spend) a vocation with me. 分类:华北水利水电大学材料力学 题型:选择题 查看答案
[填空题,5分] He is very clever and his ability to impr [填空题,5分] He is very clever and his ability to improve his work is very (limit) 分类:华北水利水电大学材料力学 题型:选择题 查看答案