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メディア授業とは，メディアを利用して遠隔方式により実施する授業の授業時数が，総授業時数の半数を超える授業をいいます。
メディア授業により取得した単位は，卒業要件として修得すべき単位のうち60単位を超えないものとされています。
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The components and structural elements that constitute machines and structures must possess the necessary and sufficient strength and safety to avoid failure during use. In this course, which covers the first part of Mechanics of Materials, we will begin by studying the mechanical responses of bars subjected to axial forces, focusing primarily on stress, strain, and thermal stress. Next, we will examine beams, which are bars subjected to transverse forces. The course will explore how beams deflect when subjected to transverse (shear) forces, where stress concentrations occur, and the points at which failure may arise.
In this lecture, a professor with practical experience in new car development at a major automobile manufacturer will give a lecture on mechanical design.
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Achieve understanding, formulation, and calculation proficiency in the following areas:
Static equilibrium equations, equilibrium of external forces (loads) and internal forces, stress and strain, Hooke's law and elastic modulus, normal stress and shear stress, mechanical properties of materials, allowable stress and safety factors, truss structures, thermal stress, shear force and bending moment in beams, properties of plane figures (centroid, first moment of area, second moment of area, section modulus), bending stress, deflection, and more.
Be able to establish the mechanical equilibrium equations for free-body diagrams.
Understand the solution methods for internal forces, stresses, displacements, and strains by solving simultaneous equations consisting of static equilibrium equations, Hooke's law, and deformation compatibility conditions.
Be capable of determining and selecting beam cross-sectional shapes based on bending stress.
Understand and compute deflection by formulating and solving the differential equations of deflection.
Develop an understanding of the conditions and phenomena that lead to material failure, fostering interest and motivation in ensuring the safety of mechanical systems.
Strengthen comprehension by solving exercise problems based on the lecture content, thereby fostering a proactive attitude toward learning.
Acquire the ability to logically and clearly express and present the computational process for structural strength.
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The course begins with lectures to build a solid understanding of the principles of Mechanics of Materials. Following this, students will apply their acquired knowledge by working on exercise problems to develop both understanding and practical skills. The topics will be covered in the following order:
-External forces and internal forces
-Stress and strain
-Hooke's law
-Material-specific strength and safety factors
-Problems involving tension and compression
-Simple shear problems
-Statically indeterminate problems in tension and compression
-Shear force and bending moment in beams
-Bending stress in beams
-Deflection problems in statically determinate beams
-Deflection problems in statically indeterminate beams
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第1回
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Overview of Mechanics of Materials and Statics of Equilibrium
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Overview of mechanics of materials, and statistic equilibrium.
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第2回
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Stress and Strain
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Learn the definitions of stress and strain, their dimensions and units.
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第3回
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Hooke's Law and Modulus of Elasticity
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Learn about Hooke's law, a directly proportional relationship between stress and strain that expresses the elastic properties of materials, and the modulus of elasticity.
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第4回
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Material Testing and Stress-Strain Relationships
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Learn about material testing, stress-strain relationships in tensile testing, safety factor and allowable stress.
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第5回
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Static problems in tension, compression and shear
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Learn about stresses and strains in straight bars and bars subjected to object forces.
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第6回
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Thermal strain and thermal stress and non-stationary problems
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Learn about the thermal strain and the thermal stresses that result from thermal changes in objects.
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第7回
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Non-stationary tensile and compressive problems
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Learn how to solve non-stationary problems, simultaneous compression of cylinders and cylinders, and bars between rigid walls.
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第8回
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cross-sectional secondary moment
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Review of primary moments of section and the relationship between figure centers, secondary polar moments of section, secondary moments of section, and section coefficients.
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第9回
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Theory of Beam Bending
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Learn about the relationship between loads, shear forces, and bending moments.
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第10回
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Shear force and bending moment of a beam
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Learn about shear forces and bending moments acting on beams.
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第11回
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Shear force diagram and bending moment diagram of a beam
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Learn about shear force diagrams (S.F.D.) and bending moment diagrams (B.M.D.).
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第12回
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Bending stress of a beam
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Learn about bending stress in beams.
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第13回
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Deflection and Solution of Pultrusion
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The derivation of the differential equation for the deflection curve of a beam is studied.
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第14回
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Deflection non-stationary problem of a beam
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Learn how to solve deflection non-stationary problems of beam deflection.
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第15回
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periodical examination
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Written test. Comprehension test.
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第16回
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Summary of previous lectures and examinations
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Summary of previous lectures and examinations
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※AL（アクティブ・ラーニング）欄に関する注
・授業全体で、AL（アクティブ・ラーニング）が占める時間の割合を、それぞれの項目ごとに示しています。
・A〜Dのアルファベットは、以下の学修形態を指しています。
【A：グループワーク】、【B：ディスカッション・ディベート】、【C：フィールドワーク（実験・実習、演習を含む）】、【D：プレゼンテーション】
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A: --% B: --% C: 20% D: --%
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Students' understanding of each topic will be comprehensively evaluated through regular examinations and assignment reports. Attendance is a mandatory requirement and will be considered a disqualifying condition if insufficient.
Regular Examinations (Midterm and Final): 100%
Quizzes and In-Class Reports: Mandatory requirement (failure to meet this will result in disqualification).
Homework and Out-of-Class Reports: Mandatory requirement (failure to meet this will result in disqualification).
Class Attitude and Participation: Mandatory requirement (failure to meet this will result in disqualification).
Student Presentations: Mandatory requirement (failure to meet this will result in disqualification).
Exercises: Mandatory requirement (failure to meet this will result in disqualification).
Attendance: Mandatory requirement (failure to meet this will result in disqualification).
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（注）ルーブリックとは、評価水準である「尺度」と、尺度を満たした場合の「特徴の記述」で構成される評価指標のことを言います。
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Since it is necessary to accumulate understanding step by step, it is important to prepare and review for each class. The quickest way to become an "expert in Strength of material" is to continue to attend classes without missing a day of class and to actually try to solve the examples.
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Stress, strain, internal force, elasticity, elastic modulus, force equilibrium, Hooke's law, tension, compression, shear, bending, torsion, mechanical properties, tensile test, tensile strength, yield point, safety factor, allowable stress, bar, beam, shear force, bending moment, deflection, centroid, cross-sectional area, first moment of area, second moment of area, section modulus, truss, thermal stress, stress concentration, circular ring, elasticity and plasticity, material strength and allowable stress, material structure and composition, thermal stress, practitioner faculty.
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| (貧困)あらゆる場所のあらゆる形態の貧困を終わらせる。 |
| (飢餓)飢餓を終わらせ、食料安全保障及び栄養改善を実現し、持続可能な農業を促進する。 |
| (水・衛生)すべての人々の水と衛生の利用可能性と持続可能な管理を確保する。 |
| (エネルギー)すべての人々の、安価かつ信頼できる持続可能な近代的エネルギーへのアクセスを確保する。 |
| (インフラ、産業化、イノベーション)強靱（レジリエント）なインフラ構築、包摂的かつ持続可能な産業化の促進及びイノベーションの推進を図る。 |
| (持続可能な都市)包摂的で安全かつ強靱（レジリエント）で持続可能な都市及び人間居住を実現する。 |
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材料力学II、機械工学演習B、弾塑性力学、機械材料学、材料強度学、機械設計論、生体・ロボット工業数理
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koga at yamaguchi-u.ac.jp
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