英汉双语材料力学0.ppt

CHAPTER 0

INTRODUCTION
INTRODUCTION
Mechanics of Materials
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第零章绪论
材料力学
绪论
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CHAPTER 0 INTRODUCTION
§ 0-1 THE RESEARCH OBJECT OF MECHANICS OF MATERIALS
§0-2 THE TASKS OF MECHANICS OF MATERIALS AND ITS RELATION WITH ENGINEERING
§ 0-3 THE PROPERTIES AND THE FUNDAMENTAL ASSUMPTIONS OF THE SOLID DEFORMABLE BODIES
§0-4 BASIC TYPES OF THE DEFORMATION OF RODS
INTRODUCTION
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第零章绪论
材料力学:研究物体受力后的内在表现, 即,变形规律和破坏特征。
§0–1 材料力学的研究对象
§0–2 材料力学的任务及与工程的联系
§0–3可变形固体的性质及基本假设
§0–4 杆件变形的基本形式
绪论
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Leonardo Da Vinci said: “ mechanics is a mathematic paradise, because we acquired mathematics's fruit here."
Leonardo Da Vinci
Galileo Galilei
He made a detailed study on the basic concepts of movement including the center of gravity ,speed and acceleration and came up with the rigid mathematic formulas .Especially the concept of acceleration is the milestone in the history of mechanics.
Galileo (1564~1642) is a German astronomer,mechanist and was born in Pisa onFeb15 1564 and died on 1642 at the same place.
INTRODUCTION
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绪论
达芬奇说: “力学是数学的乐园,因为我们在这里获得了数学的果实。”
达芬奇
伽利略
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INTRODUCTION
He once informally proposed law of inertia ,which established the foundation for Newton to propose formally the first law and the second law . It can be said that Galileo is the Pioneer of Newton in the settlement of the classical mechanics . Galileo also brought up with the law of resultant and the rule of the parabolic motion and set up the principle of relativity . He is the first scientist to make a tot of achievements by the telescope .
He kept on fighting with the idealism and church philosophy and suggested that we should study the law of nature by specific experiments and thought that experiences are the source of theory.
Galileo Galilei
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绪论
达芬奇说: “力学是数学的乐园,因为我们在这里获得了数学的果实。”
达芬奇
伽利略
8
Introduction
Here are his contributions to mechanics : he made a further study on the basis of Galileo Galilei and other people and concluded the three pri