1) Can calculate loads and reaction forces acting on static members of mechanical structures.
2) Can calculate the stress value and the resulting deformation amount when one-dimensional stress acts on the static member of a mechanical structure.
3) Can design static parts of mechanical structures in a reasonable and safe manner.
4) Can discuss material dynamics issues with others based on logical thinking.
Outline:
The aim is to be able to calculate the strength of structural and mechanical components and to evaluate the strength of these components, as well as to be able to independently and continuously learn related matters, and to conduct logical thinking and technical discussions.
Style:
Pre-study the textbook and example problems before classs. After the instructor explains the key points of the study material at the beginning of the class, students will have a group discussion. They are also expected to raise questions and unclear points to the instructor for explanation. Work in groups on the exercise assignments prepared by the instructor.
Notice:
This course's content will amount to 90 hours of study in total. These hours include the learning time guaranteed in classes and the standard study time required for pre-study / review, and completing assignment reports. Try to think and understand yourself. Actively work on the exercise assignments. Actively participate in group discussions and contribute to the group's learning activities during class hours.
Students who miss 1/3 or more of classes will not be eligible for evaluation.
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Theme |
Goals |
| 1st Semester |
| 1st Quarter |
| 1st |
Tensile and compressive (1) Normal stress and axial force |
Can explain the types of loads and how the material deforms due to the loads. Understand the internal forces and stresses that occur in the virtual cross section of the bar under axial load, and can calculate their magnitude.
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| 2nd |
Tension and compression (2) Deformation of the rod due to axial force, and the mechanical properties of the material |
Understand the deformation of the bar on which the axial force acts, and can calculate its magnitude. Can explain stress-strain diagrams for various materials. Can understand Hook's law and explain the modulus of elasticity.
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| 3rd |
Tensile and compressive (3) Thermal expansion and stress, allowable stress and factor of safety, and simple truss |
Understand the meaning of the linear expansion coefficient and can calculate thermal stresses for simple thermal stress problems. Can explain the allowable stress and factor of safety, and can calculate safe workpiece dimensions for the bar under axial load. Can calculate the stresses that occur on members of a static truss, and can calculate the nodal displacements.
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| 4th |
Tensile and compression (4) Bars with varying cross-sectional area, stress concentration |
Can calculate the stress and elongation of the bars with varying cross sections. Can explain the meaning of stress concentration, and can calculate the maximum stress using diagrams and other diagrams.
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| 5th |
Tension and compression (5) Bars with varying axial force |
Can calculate the stresses, strains and deformations caused by axial loads, self-weights, and centrifugal forces acting on intermediate points.
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| 6th |
Shear and torsion (1) Shear stress, shear strain, and couples |
Can calculate the stresses and deformations of the members affected by the shear load. Understand Hook's law in shear, and can explain the modulus of elasticity. Can explain the couples and the moments.
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| 7th |
Shear and torsion (2) Axis torsion, power axis |
Can calculate the shear strain and shear stress of the torsional round bar. Can calculate the section quadratic polar moment and polar section factor for round and hollow round axes. Understand the meaning of the torsional rigidity of an axis, and can calculate the torsion angle of an axis. Can calculate the stresses and torsion angles that occur on the power axis.
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| 8th |
Bending of the beam (1) Type of beam and reaction force of the support point |
Can explain the definition and type of beam and the type of load applied to the beam. Can calculate the reaction forces that occur at the support point.
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| 2nd Quarter |
| 9th |
Beam bending (2) Shear force diagram and bending moment diagram |
Can calculate the shear forces and bending moments that occur in a virtual section of a beam subjected to various loads, and you can create a shear force diagram and a bending moment diagram.
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| 10th |
Beam bending (3) Regularity in shear and bending moment diagrams, inflection beams and arc beams, and beams subject to moving loads |
Understand the relationships between loads, shear forces, and bending moments, and can calculate loads, shear forces, and bending moments by using the relationships. Understand the regularity of shear and bending moment diagrams, and can create shear and bending moment diagrams without relying on calculations. Can create shapes internal and internal idol forces in inflection beams, arc beams, and beams subject to moving loads.
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| 11th |
Bending of the beam (4) Bending stress of the beam |
Can calculate the bending stress and its distribution caused by bending moment.
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| 12th |
Beam bending (5) Beam cross-sectional shape and bending strength and bending stiffness |
Can explain the meaning of the centroid, the second moment of section, and the section coefficient, and can calculate them for the various section shapes. Can devise the cross-section shape of the beam by considering the bending strength and bending stiffness.
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| 13th |
Beam bending (6) Beam deflection |
Can calculate the deflection angle and deflection for various beams by using the differential equation of the deflection curve.
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| 14th |
Bending of the beam (7) Equal strength beam |
Can explain stress and deformation for equal strength beams, and can calculate them. Can calculate the shape and dimensions to achieve equal strength beams. Can explain the use examples of plate springs, lap plate springs, and vehicle springs.
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| 15th |
Total Review |
Understand the essentials of mechanics of solids.
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| 16th |
Final exam |
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