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Chapter 18

Stress and Strain - Axial Loading

Axial Loading 하의 수직 변형률
Axial Loading 하의 수직 변형률
A rod subjected to a load undergoes elongation. A load-deformation diagram can represent the elongation but cannot predict deformation in different rods. ...
응력-변형률 다이어그램
응력-변형률 다이어그램
Consider a cylindrical specimen placed in a system to measure its tensile strength. Two gauge marks are inscribed on the central portion of the specimen. ...
응력-변형률 다이어그램 - 연성 재료
응력-변형률 다이어그램 - 연성 재료
When a specimen is subjected to loading the length first increases linearly at a slow rate, resulting in an initial straight line with a steep slope on ...
응력-변형률 다이어그램 - 취성 재료
응력-변형률 다이어그램 - 취성 재료
Brittle materials, under tensile stress, do not elongate much before rupturing, meaning their ultimate and breaking strengths are identical. Compared with ...
진정한 스트레스와 진정한 긴장
진정한 스트레스와 진정한 긴장
Engineering stress is the ratio of the load and the undeformed original cross-sectional area. Engineering stress approximates strain which represents the ...
훅의 법칙
훅의 법칙
Hooke's law states that stress applied to a material is directly proportional to the strain it experiences within the elastic limit. For ductile ...
플라스틱 거동
플라스틱 거동
Materials under stress due to tensile loading exhibit elastic and linear behavior until the yield point. Removing the load at the yield point, stress and ...
피로
피로
Fatigue occurs when the materials, under repeated loads for thousands or millions of cycles, rupture at a stress level much lower than the material's ...
Multiple Loadings에서의 부재 변형
Multiple Loadings에서의 부재 변형
The deformation of a rod with different materials and cross-sections is computed by dividing it into parts, each characterized by individual parameters. ...
정적으로 불확정적인 문제 해결
정적으로 불확정적인 문제 해결
Consider two cylindrical rods, one of steel and another of brass, joined at point B and restrained by rigid supports at points A and C. Determine the ...
열 변형
열 변형
A homogeneous rod with a uniform cross-section, resting freely on a horizontal surface, expands when heated. The expansion is proportional to the ...
온도 의존적 변형(Temperature Dependent Deformation)
온도 의존적 변형(Temperature Dependent Deformation)
Consider a non-homogenous rod made of steel and brass, restrained at both ends and subjected to a temperature change. The stress and load on the rod are ...
푸아송 비
푸아송 비
When a slender bar is subjected to an axial load, the bar material undergoes axial strain, causing it to deform in the axial direction. Simultaneously, ...
일반화된 훅의 법칙
일반화된 훅의 법칙
The generalized Hooke's Law extends Hooke's Law to all stress types and directions, aiding in understanding materials under multiaxial stress ...
벌크 탄성률
벌크 탄성률
The bulk modulus measures a material's resistance to uniform compression. It is defined as the proportionality constant between a change in pressure ...
전단 변형률
전단 변형률
In a cubic element with a general state of stress, the shearing stresses can deform a cube into an oblique parallelepiped without affecting normal ...
Poisson's ratio, Modulus of Elasticity와 Modulus of Rigidity의 관계
Poisson's ratio, Modulus of Elasticity와 Modulus of Rigidity의 관계
A slender bar subjected to an axial load undergoes deformation in the axial and transverse directions. The deformation affects the cubic elements within ...
Saint-Venant의 원칙
Saint-Venant의 원칙
Consider a member with plates on both ends. When loads are applied centrally on the plates, they move towards each other without rotating, causing the ...
응력 집중
응력 집중
Stress concentration refers to the amplification of stress in a structural member near points of discontinuity, such as holes or abrupt changes in ...
잔류 응력
잔류 응력
When a rod is stretched beyond its yield point, it permanently deforms and doesn't regain its original length. The stresses created during loading are ...
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