# PROGRAMS CONCERNING MECHANICS IN FORTRAN 90

Choose a source program (*.F90) by clicking the appropriate button.

 BEAM.F90 CIRCUIT.F90 1DOF01.F90 1DOF02.F90 MODES.F90 NDOF01.F90 NDOF02.F90 NDOF03.F90 NDOF04.F90 BEAM1.F90 PENDULUM.F90 COMPOS01.F90 COMPOS03.F90 COMPOS04.F90
Program Description

• Use Runge-Kutta method to solve a LRC circuit or equivalent damped mass-spring problem
• Response of a 1 dof Mass-Spring System with damping to a sinusoidal input force
• Response of a 1dof Mass-Spring System with viscous damping to a periodic input force: M X" + C X' + K X = F(t)
• Frequencies and Modes of Mass-spring Systems without Damping By Transfer Method
• Response of a N d.o.f. Mass-Spring System with Damping to a sinusoidal Force By Transfer Matrices Method
• Frequencies and eigenmodes, masses and modal stiffnesses of a Mass-Spring undamped system represented by Motion Equation: [M] . [X]" + [K] . [X] = [0].
• Response of a N d.o.f. Mass-Spring System with Damping to a sinusoidal Force By a Direct Method
• Step by step solution of system [M] X" + [C] X' + [K] X = F(t) By the "Wilson-Theta" Method
• Resonance Frequencies of a bending beam, Modal Mass and Stiffness, Deformation modes and Maximum Strain
• Calculate angular motion of an elementary Mass Pendulum NEW
• Calculate the stresses in a unidirectional layer of a composite material, knowing deformations exx, eyy, gxy, and angle theta of fibers in x direction NEW
• Calculate the matrix linking the stresses to deformamations in a laminated material made of n unidirectional composite layers NEW
• Calculate the deformations and stresses in a laminated material made of n unidirectional composite layers, knowing the resulting imposed efforts NEW

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