TAILIEUCHUNG - Machine Design Databook Episode 3 part 11

Tham khảo tài liệu 'machine design databook episode 3 part 11', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | APPLIED ELASTICITY CHAPTER TWENTY-SEVEN Nr No normal forces per unit length in radial and tangential directions in polar co-ordinates N lbf p q Qx Qy pressure MPa psi load per unit length kN m lbf in shearing forces parallel to z-axis per unit length of sections of a plate perpendicular to x and y axis N m lbf in Nr N r rx ry radial and tangential shearing forces N lbf radius m in radii of curvature of the middle surface of a plate in xz and yz planes r e t T polar co-ordinates time s temperature C tension of a membrane kN m lbf in M Xy u v w V W w twist of surface components or displacements m in strains energy weight N lbf displacement m in displacement of a plate in the normal direction m in deflection m in x y z X Y Z Z p Ơ x Vy N rectangular co-ordinates m in body forces in x y z directions N lbf section modulus in bending cm3 in3 density kN m3 lbf in3 angular speed rad s stress MPa psi normal components of stress parallel to x y and z axis MPa psi r ơe r ơ l- ơ radial and tangential stress MPa psi normal stress components in cylindrical co-ordinates MPa psi shearing stress MPa psi xy Tyz T-_x shearing stress components in rectangular co-ordinates MPa psi x y z r e Y xy yz Yzx 7rf Tfe Trớ Tfe Trz unit elongation m m in in unit elongation in x y and z direction m m in in radial and tangential unit elongation in polar co-ordinates shearing strain shearing strain components in rectangular co-ordinate shearing strain in polar co-ordinate shearing stress components in cylindrical co-ordinates MPa psi V ỳ Poisson s ratio stress function angular deflection deg e x y z r g z e x y z volume expansion shearing components in cylindrical co-ordinates Note . Ơ and T with subscript s designates strength properties of material used in the design which will be used and observed throughout this Machine Design Data Handbook Downloaded from Digital Engineering Library @ McGraw-Hill Copyright 2004 The McGraw-Hill Companies. All rights .

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