Beijing University of Chemical Technology
《Engineering Mechanics》Syllabus
Course Information
| Course Code： | MEE22201T |
| Course Name(in Chinese)： | 工程力学 |
| Course Name(in English)： | Engineering Mechanics |
| Course Category： | |
| Target Studendts： | Students whose major are material science and |
| Term Avaiable： | 3 |
| Total Credit Hours： | 32 |
| Total Credits： | 2 |
| Prerequisites（Course Code）： | Advanced mathematics and General Physics |
| Parallels（Course Code）： | |
| Course Descriptions： | The engineering mechanics is a element course for students whose major are material science. The task is to study the deformation and stress the mechanical bar under various loads. Through participating this course, make students grasp the methods that abstract the real engineering components to the mechanics model; grasp internal forces of rod, stress, the basic principles and methods of the deformation distribution; grasp the theories and calculation for the strength, stiffness, stability of bar. |
| Textbooks Recommended： | 王守新．工程力学．北京：化学工业出版社，2000 |
| Supplementary Materials: | [1] Andrew Pytel. Jaan Kiusalaas, 工程力学 静力学（第2版，英文影印版）．北京：清华大学出版社2003 [2] Ferdinand P.Beer ,E.Russell Johnston,Jr. John T. Dewolf 材料力学（第五版，英文影印版）．北京： [3]单辉祖．材料力学．北京：高等教育出版社，1999 [4]范钦珊等．工程力学教程（第一版）．北京：高等教育出版社，2000 |
Learning Goals and Objectives
1. Grasping the basic methods of force ****ysis, knowing how to apply the equilibrium equations to resolve problem expertly.
2. Grasping the basic concepts on deformation, fundamental theorem, and knowing the ****ysis, calculation methods for shafts with various loading.
3. Grasping how to draw the diagram of internal force of shafts under basic deformation, as well as calculation methods and formula for strength, stiffness.
4. Knowing the concepts of stability of column.
5. Knowing the concepts of alternative stress and fatigue limit
Course Content and Requirments
1. equilibrium equation of statics (5 credit hours)
Basic concept; Constraints and Reactions of Constraint; Free-Body Diagram, The moment of force , plane Couples, Reduction of general planar force system, the equilibrium conditions and equations of general planar force system, Resultant and equilibrium conditions of spatial couple system; Reduction of General Spatial Force System.
2. Basic concepts on mechanics of materials (2 credit hours)
The task of mechanics of materials; strength, stiffness, stability; fundamental assumption of deformable body; loading and its classification. External force, internal force, stress, displacement and strain; basic deformations of members.
3. Tension and compression (4 credit hours)
The concepts and examples of axial loading, internal force and stress on the cross sections in the case of axial loading; mechanical properties of materials；factor of safety , allowable stress and strength condition; deformations of member under axial loading, Hooke’s law, poisson’s ratio, strain energy, statically indeterminate of member under axial loading, thermal stresses and assembly stress; stress concentrations; shear and bearing.
4. Torsion (4 credit hours)
Introduction, moment of couple, pure shear, theorem of conjugate shear stress shearing Hooke’s law in shear； torque and torque diagram； stresses in a circular shaft, strength condition； deformation in a circular shaft、stiffness condition.
5. properties of plane areas（2 credit hours）
first moment of an area and centroid； moment of inertia、radius of gyration、product of inertia；determination of the moment of inertia of a composite area.
6. bending（8 credit hours）
Introduction； shear force and bending moment； shear force and bending moment diagrams；relationships between load, shear force and bending moment; The normal stress in pure bending；the normal stress in bending by transverse force、the strength condition of normal stress； the strength condition of shear stress of bending;deflection and slope rotation angle of beams； differential equation of the deflection curve；deflection of beams by integration； deflection of beams by superposition；stiffness condition of beams.
7. deformation under combined loadings（2 hours）
Introduction；symmetrical beams with skew loads；the stress under axial and bending loads； the stress under torque and bending loads.
8. stability of columns（2 credit hours）
Introduction；critical load for pin-ended columns； extension of critical loads to column with other end conditions；
9. dynamic loadings, Alternating stress and fatigue failure（1 credit hour）
Assignment
Assignments will be due weekly. Students are encouraged to work together, but should write up their solutions independently. Assignments will be collected in the next week. The assignments occupy 20 % of the final grade, each student is expected to work hard on the assignments, it is very helpful for grasping the contents of the course and to have the good grades in quizzes or final exam, the problems in the assignments could appear in the tests.
Evaluation Approaches
The final exam will be carried out by close book in 120 minutes. The exact time will be informed at least 1 week ahead. Student must be completed his exam independently.
Asses**ent System
Grading is by the five-grade marking system，it distributes as follow:
Final grades: 80%
Assignments: 20%