Kelvin-Voigt Boundary Implementation for #692

include/node.tcc

@@ -397,19 +397,25 @@ bool mpm::Node<Tdim, Tdof, Tnphases>::apply_absorbing_constraint(
           Eigen::Matrix<double, Tdim, 1> absorbing_force_;
           double force0 = 0.0;
           double force1 = 0.0;
-          if (position == mpm::Position::Corner) {
-            force0 = 0.5 * h_min * absorbing_traction_(0);
-            force1 = 0.5 * h_min * absorbing_traction_(1);
-          } else if (position == mpm::Position::Bottom) {
-            force0 = 0.5 * h_min * absorbing_traction_(0);
-            force1 = 1.0 * h_min * absorbing_traction_(1);
-          } else if (position == mpm::Position::Side) {
-            force0 = 1.0 * h_min * absorbing_traction_(0);
-            force1 = 0.5 * h_min * absorbing_traction_(1);
-          } else {
-            throw std::runtime_error("Invalid absorbing boundary position");
+          switch (position) {
+            case mpm::Position::Corner:
+              force0 = 0.5 * h_min * absorbing_traction_(0);
+              force1 = 0.5 * h_min * absorbing_traction_(1);
+              break;
+            case mpm::Position::Bottom:
+              force0 = 0.5 * h_min * absorbing_traction_(0);
+              force1 = 1.0 * h_min * absorbing_traction_(1);
+              break;
+            case mpm::Position::Side:
+              force0 = 1.0 * h_min * absorbing_traction_(0);
+              force1 = 0.5 * h_min * absorbing_traction_(1);
+              break;
+            default:
+              throw std::runtime_error("Invalid absorbing boundary position");
+              break;
           }
           // clang-format off
+          // cppcheck-suppress *
           absorbing_force_ << force0, force1;
           // clang-format on
           this->update_external_force(true, phase, -absorbing_force_);