Converge

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Converge

jinHjl
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Hi;
    When i was solve the nonlinear of prestress concrete beams,there is the warning :"In the option *concrete tension stiffening, stress values smaller than the minimum (1.00000e-02 times the initial failure stress) have been specified. The minimum value will be assumed."and "The plasticity/creep/connector friction algorithm did not converge at 5 points"
    How can i solve these problems?