图示点的应力状态,应力的单位为MPa,其主应力、最大切应力是() [img=171x176]17e0ad40bd6e004.jpg[/img]
A: σ1=80MPa,σ2=54.2MPa,σ3=-44.2MPa,τmax=62.1MPa
B: σ1=54.2MPa,σ2=-44.2MPa,σ3=80MPa,τmax=62.1MPa
C: σ1=80MPa,σ2=54.2MPa,σ3=-44.2MPa,τmax=49.2MPa
D: σ1=54.2MPa,σ2=-44.2MPa,σ3=80MPa,τmax=49.2MPa
A: σ1=80MPa,σ2=54.2MPa,σ3=-44.2MPa,τmax=62.1MPa
B: σ1=54.2MPa,σ2=-44.2MPa,σ3=80MPa,τmax=62.1MPa
C: σ1=80MPa,σ2=54.2MPa,σ3=-44.2MPa,τmax=49.2MPa
D: σ1=54.2MPa,σ2=-44.2MPa,σ3=80MPa,τmax=49.2MPa
举一反三
- 图示某危险点的应力状态,其主应力[img=17x17]1802d1d0a26b7ea.png[/img]和最大切应力[img=33x17]1802d1d0aaf4fad.png[/img]为( )。[img=148x135]1802d1d0b624ea8.jpg[/img] A: 130 MPa, 80 MPa B: 120MPa,30 MPa C: 150MPa,60 MPa D: 140 MPa,, 80MPa
- 图示应力状态的主应力σ1,σ2,σ3和最大切应力τmax的值为()(应力单位:MPa)。
- 已知一点应力状态如图,三个主应力为σ1=MPa,σ2=MPaσ3=MPa.[img=247x138]17e44652f6a3eca.png[/img]
- 某单元体的三个主应力分别为-50MPa,60MPa,80MPa,最大切应力的数值为( )。 A: 70 MPa B: 45 MPa C: 65 MPa D: 20MPa
- 图中所示为一平面应力状态,[img=28x19]1802d891686c412.png[/img]截面上的正应力和切应力分别为( )[img=598x444]1802d89176bc4ee.jpg[/img] A: 52.7 MPa, -30.8 MPa B: 52.7 MPa, -31.8 MPa C: 49.7 MPa, -34.8 MPa D: 49.7 MPa, -33.8 MPa