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所在平台: Udemy |
课程主页: https://www.udemy.com/course/strength-of-materials-practice-test-series-i/
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Coursera 课程“材料力学练习题集 I”综述 本练习题集是材料力学系列测试的一部分，适合所有水平的学习者。它旨在帮助您评估对基础知识的掌握程度，并了解如何将其应用于实际问题。本系列测试也适用于 GATE 和 IES 等各类考试的备考，并且对于参加口试（viva voce）和求职面试也极有帮助。 课程内容涵盖材料力学的多个主题： 1. **应力与应变 (Stresses and Strain)**：包括应力与应变的类型、长度变化推导、延性和脆性材料的应力-应变曲线、锥形杆的伸长、自重引起的杆件伸长、复合杆和组合杆中的应力与应变、温度应力与应变、应变概念、泊松比、单轴-双轴-三轴加载、弹性常数以及相关all numericals。 2. **剪力图 (SFD) 和弯矩图 (BMD)**：涉及支座类型、梁、反力、剪力与弯矩的符号约定。 3. **形心 (C.G.) 与惯性矩 (M.I.)**：涵盖质心、形心、回转半径、惯性矩、极惯性模量、截面模量、质量惯性矩、面积惯性矩、平行轴定理和垂直轴定理等概念。 4. **应变能 (Strain Energy)**：包括三种情况——静载荷、突然加载和冲击加载；以及复合杆和组合杆的应变能。 5. **梁的挠度 (Deflection of Beams)**：涉及弯曲公式和麦考莱法 (Macaulay's method)，并将其用于计算各种加载条件下梁的坡度和挠度。 6. **扭转理论 (Theory of Torsion)**：主要关注轴的设计及其在实际使用中的安全性分析。 7. **薄圆筒和球壳 (Thin Cylinders and Spherical Shells)**：包括环向应力（周向应力）和纵向应力。 8. **柱和杆件 (Columns and Struts)**：介绍长柱的欧拉理论及其假设、欧拉理论的局限性以及 Rakhine-Gordan 公式。 9. **梁中的弯曲应力、剪应力以及直接应力和组合应力 (Bending Stresses in Beams, Shear Stresses in Beams and Direct and Combined Stresses)**。 课程大纲：无。
This practice test is a part of test series of strength of materials. This test series is for all level of learners. It will help you understand your level of understanding of basic knowledge and how to apply it for real life problems. Use it for various types of exams like GATE and IES preparations. Also this test series will be useful in attending viva voce and appearing for job interviews.It includes various topics of Strength of Materials subject. First being Stresses and Strain which includes topics like types of stresses and strains, derivation for change in length, stress-strain for ductile and brittle materials, elongation of tapered bar, elongation of bar due to self-weight, stress and strain in composite and compound bars, temperature stresses and strains, concept of strain, Poisson's Ratio, uniaxial-biaxial-triaxial loading, elastic constants- and numericals on all these topics.Second topic being Shear Force Diagram(SFD) and Bending Moment Diagram(BMD). Topics like types of supports, beams, reactions, Shear Force and Bending Moment sign conventions. Third one is Centre of Gravity(C.G.) and Moment of Inertia(M.I.). Concepts like centroid, centre of gravity, radius of gyration, moment of inertia, polar modulus, section modulus, mass moment of inertia, area moment of inertia, parallel axis theorem and perpendicular axis theorem are included here.Fourth topic is the concept of Strain Energy. Three cases are included here- gradually applied load, suddenly applied load and suddenly applied load with impact. Strain energy for composite and compound bars is also included.Fifth topic is Deflection of Beams which includes Flexural formula and Macaulay's method which is then used for solving numericals for calculation of slope and deflection of beams under various loading conditions.Sixth concept is Theory of Torsion which is about designing shafts and analyzing if the design is safe for practical use. Seventh concept is Thin Cylinders and Spherical Shells. Concepts like Hoop Stress(circumferential stress) and Longitudinal stress are included here.Eighth concept is of Columns and Struts which includes Euler's theory and its assumptions for long column, Limitation of Euler's theory and Rakhine-Gordan Formula. Last one being Bending Stresses in Beams, Shear Stresses in Beams and Direct and Combined Stresses.
