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材料强度(4学分)

先决条件:工程师211而且m 252．

研究结构材料的性能。分析轴载构件、圆轴和梁以及包含这些构件的静不定系统中的应力和变形。

ENGR 213:材料强度

https://catalog.cocc.edu/course-outlines/engr-213/

成绩单标题材料学分强度4评分方式标准信分总接触时数40授课时数40先决条件ENGR 211和MTH 252。课程描述研究结构材料的性能。分析轴载构件、圆轴和梁以及包含这些构件的静不定系统中的应力和变形。课程学习成果计算截面和连接件上的平均法向应力、剪切应力和轴承应力。2.在构件设计中，将许用应力、材料强度和安全系数联系起来。3.用莫尔圆来确定主应力、最大剪应力和主轴方向。4. Calculate stresses for axial, torsion, beam bending, and combined loading on simple structural elements. 5. Draw shear and bending moment diagrams, and write beam equilibrium equations. 6. Calculate beam deflections using integration of the moment equation and the method of superposition. Content outline Define average normal, shear, and bearing stresses, and calculate for simple axially loaded components and pinned connectors. Define normal, shear, and thermal strain, and calculate for simple object deformations. Describe tension tests and stress-strain diagrams. Identify the mechanical properties of materials used in engineering mechanics analyses. Define the design concepts of strength, safety factor, and allowable stress. Use equations for stress within and deformation of axially loaded structural elements and assemblies. Use equations for stress within and deformation of circular shafts and assemblies under torsional loading. Develop equilibrium and graphical approaches to analysis of internal shear and bending moment in beams. Use equations for flexural normal stress in beams, and establish the basic methods of beam design. Develop and use equations for shear stress and shear flow in monolithic and composite beams with typical symmetric cross-sectional geometries. Generalize the concept of stress, and introduce the plane stress element. Establish equations for stress coordinate transformation, principal stresses, and maximum shear stress. Develop Mohr’s Circle for plane stress. Analyze simple combined loading problems. Establish integration and superposition methods for calculating beam deflections. Required materials A strength of materials textbook will be required.