Bar fixed at both ends (in series)
Gives the reactions, axial forces, stresses and extensions for a bar fixed to rigid walls at both ends and loaded axially at an intermediate point C. Length, sectional area and Young's modulus can be set for each segment, so stepped bars and bars made of two materials are covered as well.
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Related pages
From the difference between statically determinate and indeterminate, through to solving the equilibrium equations together with the compatibility condition. The sign convention and how to check the result are covered too.
Thermal stress in a bar restrained at both ends. The restraint cancels the expansion, which makes it the same kind of statically indeterminate problem.
Thermal stress where two materials with different coefficients of expansion are joined and restrained. This one is solved from the compatibility condition as well.