计算屈服强度、弹性系数、抗张强度（中英文）急用,A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2.During the test the specimen yields under a load of 98,000 N.The corresponding gage length
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计算屈服强度、弹性系数、抗张强度（中英文）急用,A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2.During the test the specimen yields under a load of 98,000 N.The corresponding gage length
计算屈服强度、弹性系数、抗张强度（中英文）急用,
A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2.During the test the specimen yields under a load of 98,000 N.The corresponding gage length = 50.23 mm.This is the 0.2 percent yield point.The maximum load = 168,000 N is reached at a gage length = 64.2 mm.一个拉力测验中选用一个直径为50mm,面积为200mm2的式样.试样在98,000 N的力的作用下产生形变,此时试样直径为50.23 mm,这是2%屈服点.最大压力为168,000 N ,此时直径为64.2 mm.
一、Determine yield strength Y,求屈服强度
A 450 MPA
B 468 MPa
C 490 MPa
D 520 MPa
二 Determine modulus of elasticity E 求弹性系数E
A 188.5 x 103 MPa
B 124.8 x 102 MPa
C 1885.0 x 103 MPa
D1248.0 x 102 MPa
三Determine tensile strength TS.求抗张强度
A 740 MPa.
B 760 MPa.
C 840 MPa.
D 860 MPa.
计算屈服强度、弹性系数、抗张强度（中英文）急用,A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2.During the test the specimen yields under a load of 98,000 N.The corresponding gage length
easy小题
样品是一根棍,长50mm,截面积200mm^2.给它98kN载荷的时候长度50.23mm,其中包括50mm*0.2%的非弹性形变.也就是说其中0.1mm是非弹性形变,0.13mm是弹性形变.168kN的时候拉断,长度是64.2mm.
1.屈服应力=屈服载荷/面积=98kN/200e-6m^2=490MPa,选C
2.应变=0.13/(50*1.002)=0.2595%.弹性模量=应力/应变=490/0.002595=188.8e3MPa,选A
3.最大应力=168kN/200e-6m^2=840MPa,选C