Strength of Materials |
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Page 28
... strain diagram to be a straight line . From this we deduce the well - known relation , first postulated by Robert Hooke * in 1678 , that stress is proportional to strain . Notice carefully that ... Strain Stress 28 [ Chap . 2 Simple Strain.
... strain diagram to be a straight line . From this we deduce the well - known relation , first postulated by Robert Hooke * in 1678 , that stress is proportional to strain . Notice carefully that ... Strain Stress 28 [ Chap . 2 Simple Strain.
Page 352
... strain are plotted instead of shear stress . In applying Mohr's circle for strain , we use the following rules of sign . Extensional strains are considered positive , compressive strains negative , and shearing strains positive when ...
... strain are plotted instead of shear stress . In applying Mohr's circle for strain , we use the following rules of sign . Extensional strains are considered positive , compressive strains negative , and shearing strains positive when ...
Page 357
... strain gage . As was said above , a single strain gage oriented in the direction of a uni- axial stress is sufficient for computing the stress . For biaxial stress , we might suppose that two strain gages would be sufficient ; this ...
... strain gage . As was said above , a single strain gage oriented in the direction of a uni- axial stress is sufficient for computing the stress . For biaxial stress , we might suppose that two strain gages would be sufficient ; this ...
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allowable stresses aluminum angle applied assumed axial load beam in Fig beam loaded beam shown bending bending moment bolt bronze cantilever beam caused centroid column compressive stress Compute the maximum concentrated load concrete continuous beam cross section deformation Determine the maximum diameter elastic curve end moments equal equivalent Euler's formula factor of safety fibers flange flexure formula free-body diagram ft long ft-lb Hence Hooke's law horizontal ILLUSTRATIVE PROBLEMS inertia lb/ft length loaded as shown main plate maximum shearing stress maximum stress midspan deflection modulus Mohr's circle moment of area moment of inertia neutral axis obtain plane positive proportional limit R₂ radius reaction Repeat Prob resisting restrained beam resultant segment shaft shear diagram shearing force shown in Fig Solution Solve Prob span statically indeterminate steel strain tensile stress three-moment equation torque torsional uniformly distributed load vertical shear weld zero ΕΙ