Fixed sign issue with evaluating body loads on rigid bodies.

febiosoftware · Jan 4, 2023 · 9ea0c0d · 9ea0c0d
1 parent 2ca9fa4
commit 9ea0c0d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/FEBioMech/FERigidSolver.cpp b/FEBioMech/FERigidSolver.cpp
@@ -1435,7 +1435,7 @@ void FERigidSolverNew::BodyForces(FEGlobalVector& R, const FETimeInfo& timeInfo,
         R.Assemble(LM, fe);
 
         // add to rigid body force
-        RB.m_Fr += F;
+        RB.m_Fr -= F;
     }
 }