《材料力学》课程PPT教学课件（双语版）绪论 Mechanics of Materials

INTRODUCTION之 Mechanics of materials CBAPA2P RO INRODUCN

1 Mechanics of Materials

料力学 第二论

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INTRODUCTION之 CHAPTER O INTRODUCTION 80-1 THE RESEARCH OBJECT OF MECHANICS OF MATERIALS 2 THE TASKS OF MECHANICS OF MATERIALS &0 AND ITS RELATION WITH ENGINEERING 80-3 THE PROPERTIES AND THE FUNDAMENTAL ASSUMPTIONS OF THE SOLID DEFORMABLE BODIES S0-4 BASIC TYPES OF THE DEFORMATION OF RODS

3 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

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

4 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

INTRODUCTION D Leonardo Da Vinci said: mechanics is a mathematic paradise, because we acquired mathematics's fruit here Galileo(1564-1642) is a German astronomer mechanist and philosopher. He was born in Pisa onFeb15 1564 and died on Jan 8 1642 at the same place. 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 5

5 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 philosopher.He was born in Pisa onFeb15 1564 and died on Jan.8 1642 at the same place

达芬奇说 大 “力学是数学的乐园, 芬 因为我们在这里获得了 奇 数学的果实。” 伽利略( Galileo1564~164 意大利天文学家、力学家、哲学家 1564年2月15日生于比萨,1642年 1月8日卒于比萨。 伽利略对运动基本概念,包括重 利3 速度、加速度等都作了详尽研究 并给出了严格的数学表达式。尤其是加速度柢慾的提出,是 略 力学史上的里程碑。 你利略曾非正式提出过惯性定律这为牛颚正式並第 第二定律奠定了基础。在经典方学的创立上可 利咯是牛顿的先驱。伽利咯还提出过合力定律,抛物线运动 规律,确立了伽利略相对性原理。 他是用望远镜观测天体取得大量成票的第一位科学 他一生坚持与唯心论和教会的经院哲学作斗争,主张用 具体的实验来认识自然规律,认为经验是理论知识的源泉

6 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

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 A 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

7 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

口达芬奇说: 大 “力学是数学的乐园, 芬 因为我们在这里获得了 奇 数学的果实。” 伽利略( Galileo1564~164 意大利天文学家、力学家、哲学家 1564年2月15日生于比萨,1642年 1月8日卒于比萨。 伽利略对运动基本概念,包括重 利3 速度、加速度等都作了详尽研究 并给出了严格的数学表达式。尤其是加速度柢慾的提出,是 略 力学史上的里程碑。 你利略曾非正式提出过惯性定律这为牛颚正式並第 第二定律奠定了基础。在经典方学的创立上,可说你 利咯是牛顿的先驱。伽利咯还提出过合力定律,抛物线运动 规律,确立了伽利略相对性原理。 他是用望远镜观测天体取得大量成票的第一位科学 他一生坚持与唯心论和教会的经院哲学作斗争,主张用 具体的实验来认识自然规律,认为经验是理论知识的源泉

8 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

Isaac Newton(1642-1727)is a great British physicist, mathematician and astronomer He was born in a family of peasants in Lincoln on dec25 1624 and died of Kidney stone in London on Mar20 1727 Here are his contributions to mechanics: he made a further study on the basis of Galileo Galileiand other people and concluded the three principles of objects movement and made a firm foundation for mechanics. He is the discovererof the gravitation law and set up the theoretical system of the classical mechanics He also made profound contributions to the field of mathematics, optics and astronomy. is his most important work. He concluded many important discoveries and study results in all his life in the book

9 Here are his contributions to mechanics : he made a further study on the basis of Galileo Galilei and other people and concluded the three principles of objects’movement and made a firm foundation for mechanics.He is the discoverer of the gravitation law and set up the theoretical system of the classical mechanics. He also made profound contributions to the field of mathematics , optics and astronomy.is his most important work.He concluded many important discoveries and study results in all his life in the book. Isaac Newton (1642~1727) is a great British physicist ,mathematician and astronomer . He was born in a family of peasants in Lincoln on Dec25 1624 and died of Kidney stone in London on Mar20 1727

牛顿,I.( I saac. Newton 1642~1727)伟大的英国物塑学 家、数学家、天文学家 1642年12月25日生于林肯 郡的一个农民家庭,1727年3月 20日因肾结石症在伦教逝世, 在力学方面的贡献;牛顿在伽利略等人工推舶基础 上进行深入研究,总结出物体运动的三个基本的定律,为 力学真定了坚实的基础,牛顿是万有力定律的发现者 创立了经典力学理论体亲 在数学、光学。热学、天文学等方面均作出了开创性 的贡敢。《自然哲学的数季原》牛领最重要的暑作,彭 总结了他一生中许多重要发现和研究成果

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