课程名称︰材料力学 课程性质︰必修 课程教师︰薛承辉 开课学院：工学院 开课系所︰材料系 考试日期（年月日）︰2013/11/05 考试时限（分钟）：110分钟 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : (每题20分，总分100分) 1.The building slab is subjected to four parallel column loadings. Determine the equivalent resultant force and specify its location (x,y) on the slab. Take F1=30kN and F2=40kN. (图请参考课本3-99题) 2.The drum has a weight of 500N and rest on the floor for which the coeffi- cient of static friction is μs=0.5. If a=0.9m, b=1.2m, determine the small- est magnitude of the force P that will cause impending motion of the drum. (图请参考课本4-73题) 3.Two beams are connected together by the short link BC. Determine the com- ponents of reaction at the fixed support A and at pin D. (图请参考课本5-55题) 4.Determine the moment of inertia of the beam's cross-sectional area about the x axis. (图请参考课本6-71题) 5.The cable has a specific weight γ(weight/volume) and cross-sectional area A. If the sag s is small, so that its length is approximately L and its weight can be distributed uniformly along the horizontal axis, determine the average normal stress in the cable at its lowest point C. (图请参考课本7-108题) 试题结束 --

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