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所在平台: Udemy |
课程主页: https://www.udemy.com/course/mechanics-of-materials-the-concept-of-stress-and-strain/
课程评论：没有评论
**课程名称：材料力学：应力与应变的概念** **课程概述：** 本课程深入探讨工程产品设计中的核心概念——应力与应变，旨在帮助学习者理解材料在外部载荷作用下的行为。从微小的螺钉到庞大的飞机，从螺丝刀到子弹头列车，从螺栓到太空探测器，再到螺母与航天飞机，所有工程产品都需要在经济性允许的范围内进行完美设计，以确保其在实际应用中的可靠性。 课程将从基础的应力与应变概念入手，详细阐述如何运用这些知识建立分析模型，以确定在单轴、双轴和三轴载荷作用下材料的变形、挠度、应力和应变。此外，课程还将通过解析工具和图解方法（如摩尔圆）来介绍应力变换，从而为学习者提供从设计角度的广泛知识和深刻理解。 作为机械和土木工程的基础构件，梁的力学行为也是本课程的重要组成部分。学习者将掌握绘制剪力图和弯矩图、计算梁的挠度、确定临界应力以及进行梁的设计。同时，本课程还涵盖了轴的扭转以及产生的剪应力，并讲解如何利用扭转分析工具进行轴的设计。
The engineering product (from screw to aircraft, from screw driver to bullet train, from bolt to space rovers, nut to space shuttle) needs to be designed perfectly for their reliable usage during applications. Each and every engineering product, whether small or huge is subjected to several external loads during operation, in order to withstand these loads for that these products mush be designed perfectly while keeping the economical aspect. Stress and strain is the perfect concept that is developed to study the behavior of the material/products when subjected to external loading. This course will describe about the basic concept of stress and strain. How this concept and knowledge is used to determine the analytical models for deformation, deflection, stress, and strain under uni axial load, bi-axial load and tri-axial load will be discussed. Moreover, the stress transformation through analytical tools and graphical methods (Mohr's circle) will also be elaborated in order to equipped the learners with the broad knowledge and understandings from design point of view. Beams which are the basic components of mechanical and civil engineering are also of this course,and shear force diagrams, bending moment diagrams, beams deflection, critical stress determination and beam designing can be easily learnt. Moreover, this course also covers about torsion in shafts and the shear stress produced in shafts and how to use the torsion analytical tools for the designing of shafts etc.
