Unit_3_Structure-Property_Relationships_of_Materials课件.ppt

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2017-05-31 发布于河南
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Unit_3_Structure-Property_Relationships_of_Materials课件.ppt

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Unit_3_Structure-Property_Relationships_of_Materials课件

Unit 3 Structure-Property Relationships of Materials;Requirements: 1. useful terms, definitions of stress and strain and their relationship 2. definitions of stiffness, strength, ductility, hardness and toughness 3.科技英语中数学公式的读法 ;Useful terms:;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;In true and engineering stress-strain relationships for a “typical” metal, linear portion of the stress strain curves the material is deforming elastically at the Initial. 对一个典型的金属来说，在真实和工程应力－应变相互关系中，材料压力曲线的线性部分是在最初的弹性形变。;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;Unit 3 Structure-Property Relationships of Materials;In contrast, a steel guard rail protects drivers because plastic deformation of this absorbs energy efficiently in the event of an impact (but is not so good at protecting construction workers because the vehicle is not brought to a sudden halt).? So do what the signs say and slow down for construction! 相反，一个钢的保护栏保护司机，因为在冲击出现时，这些钢的保护栏的塑性形变有效的吸收能量（但是不擅长保护建筑工人因为使用