.. _V3.02.101: **v3.02.101** SSLP101 - Rate of energy restoration under plane stresses ============================================================================ **Summary:** This is a static fracture mechanics test for a two-dimensional problem. We consider a cracked plate under plane stresses, the functionalities tested are: * the :math:`G` energy return rate, * the energy return rate calculated from the calculation of the stress coefficients :math:`{K}_{1}` and :math:`{K}_{2}`. The advantage of the test is to compare the value of :math:`G` classical and the value of :math:`G` (IRWIN) obtained from :math:`{K}_{1}` and :math:`{K}_{2}`. It also makes it possible to test the invariance of the calculation with respect to integration crowns. This test contains 3 different models: modeling A, which dealt with the calculation of the Rice integral, is no longer supported since version 3. .. toctree:: :hidden: self .. toctree:: :maxdepth: 2 :numbered: Probl_me_de_r_f_rence Solution_de_r_f_rence Mod_lisation_B Mod_lisation_C Mod_lisation_E Mod_lisation_F Synth_se_des_r_sultats