diff --git a/examples/sofapython3/component/constraint/CableActuator/CableActuator.py b/examples/sofapython3/component/constraint/CableActuator/CableActuator.py
index 0f6b00d..fd0de44 100644
--- a/examples/sofapython3/component/constraint/CableActuator/CableActuator.py
+++ b/examples/sofapython3/component/constraint/CableActuator/CableActuator.py
@@ -29,7 +29,7 @@ def createScene(rootNode):
     bunny.addObject('UniformMass', totalMass=0.5)
     bunny.addObject('TetrahedronFEMForceField', poissonRatio=0.3, youngModulus=18000)
     bunny.addObject('BoxROI', name='boxROI', box=[-5, -6, -5,  5, -4.5, 5], drawBoxes=True)
-    bunny.addObject('RestShapeSpringsForceField', points='@boxROI.indices', stiffness=1e12)
+    bunny.addObject('FixedWeakConstraint', indices='@boxROI.indices', stiffness=1e12)
     bunny.addObject('LinearSolverConstraintCorrection')
 
     # bunny/constraints
diff --git a/examples/sofapython3/component/constraint/CableActuator/Finger.py b/examples/sofapython3/component/constraint/CableActuator/Finger.py
index 869a342..e51df7e 100644
--- a/examples/sofapython3/component/constraint/CableActuator/Finger.py
+++ b/examples/sofapython3/component/constraint/CableActuator/Finger.py
@@ -29,7 +29,7 @@ def createScene(rootNode):
     finger.addObject('UniformMass', totalMass=0.075)
     finger.addObject('TetrahedronFEMForceField', poissonRatio=0.3, youngModulus=600)
     finger.addObject('BoxROI', name='ROI1', box=[-15, 0, 0, 5, 10, 15], drawBoxes=True)
-    finger.addObject('RestShapeSpringsForceField', points='@ROI1.indices', stiffness=1e12)
+    finger.addObject('FixedWeakConstraint', indices='@ROI1.indices', stiffness=1e12)
     finger.addObject('LinearSolverConstraintCorrection')
 
     ##########################################
diff --git a/examples/sofapython3/component/constraint/CableEffector/PneuNets.py b/examples/sofapython3/component/constraint/CableEffector/PneuNets.py
index 591b3cf..bffa0f9 100644
--- a/examples/sofapython3/component/constraint/CableEffector/PneuNets.py
+++ b/examples/sofapython3/component/constraint/CableEffector/PneuNets.py
@@ -26,7 +26,7 @@ def createScene(rootNode):
     model.addObject('TetrahedronFEMForceField', poissonRatio=0.3, youngModulus=200)
     model.addObject('BoxROI', name='boxROI', box=[-5, 0, -20, 0, 30, 20], drawBoxes=True)
     model.addObject('BoxROI', name='boxROISubTopo', box=[-175, 22.5, -8, -19, 28, 8], drawBoxes=False)
-    model.addObject('RestShapeSpringsForceField', points='@boxROI.indices', stiffness=1e12)
+    model.addObject('FixedWeakConstraint', indices='@boxROI.indices', stiffness=1e12)
     model.addObject('LinearSolverConstraintCorrection')
 
     ##########################################
diff --git a/examples/sofapython3/component/constraint/CableEquality/CableEquality.py b/examples/sofapython3/component/constraint/CableEquality/CableEquality.py
index 6c1c322..964a8c0 100644
--- a/examples/sofapython3/component/constraint/CableEquality/CableEquality.py
+++ b/examples/sofapython3/component/constraint/CableEquality/CableEquality.py
@@ -32,7 +32,7 @@ def createScene(rootNode):
     model.addObject('UniformMass', totalMass=0.1)
     model.addObject('TetrahedronFEMForceField', poissonRatio=Const.PoissonRation, youngModulus=Const.YoungsModulus)
     model.addObject('BoxROI', name='BoxROI1', box=Const.FixedBoxCoordsBack, drawBoxes=True)
-    model.addObject('RestShapeSpringsForceField', points='@BoxROI1.indices', stiffness=1e12)
+    model.addObject('FixedWeakConstraint', indices='@BoxROI1.indices', stiffness=1e12)
     model.addObject('LinearSolverConstraintCorrection')
 
     ##########################################
diff --git a/examples/sofapython3/component/constraint/ForceSurfaceActuator/ForceSurfaceActuator.py b/examples/sofapython3/component/constraint/ForceSurfaceActuator/ForceSurfaceActuator.py
index 6bc7813..1f9c25e 100644
--- a/examples/sofapython3/component/constraint/ForceSurfaceActuator/ForceSurfaceActuator.py
+++ b/examples/sofapython3/component/constraint/ForceSurfaceActuator/ForceSurfaceActuator.py
@@ -53,7 +53,7 @@ def createScene(rootNode):
     model.addObject('UniformMass', totalMass=0.1)
     model.addObject('TetrahedronFEMForceField', poissonRatio=0.3, youngModulus=150)
     model.addObject('BoxROI', name='boxROI', box=[-10, -15, 50, 10, 15, 90], drawBoxes=True)
-    model.addObject('RestShapeSpringsForceField', points='@boxROI.indices', stiffness=1e2)
+    model.addObject('FixedWeakConstraint', indices='@boxROI.indices', stiffness=1e2)
     model.addObject('LinearSolverConstraintCorrection')
 
     ##########################################
diff --git a/examples/sofapython3/component/constraint/SlidingActuator/actuatedBeam.py b/examples/sofapython3/component/constraint/SlidingActuator/actuatedBeam.py
index f9052f8..6c0ea9c 100644
--- a/examples/sofapython3/component/constraint/SlidingActuator/actuatedBeam.py
+++ b/examples/sofapython3/component/constraint/SlidingActuator/actuatedBeam.py
@@ -71,7 +71,7 @@ def createScene(rootNode):
     # Ex: if SlidingActuator simulates a single dof (e.g. translation along x),
     # the other dofs must be fixed using this component
     model.addObject('PartialFixedProjectiveConstraint', indices=0, fixedDirections=[0, 1, 1, 1, 1, 0])
-    model.addObject('RestShapeSpringsForceField', points=0, angularStiffness=1000, stiffness=1000)
+    model.addObject('FixedWeakConstraint', indices=0, angularStiffness=1000, stiffness=1000)
 
     ##########################################
     # Actuator                               #
diff --git a/examples/sofapython3/component/constraint/SurfacePressureActuator/PneuNets.py b/examples/sofapython3/component/constraint/SurfacePressureActuator/PneuNets.py
index b331d6c..0268925 100644
--- a/examples/sofapython3/component/constraint/SurfacePressureActuator/PneuNets.py
+++ b/examples/sofapython3/component/constraint/SurfacePressureActuator/PneuNets.py
@@ -43,7 +43,7 @@ def createScene(rootNode):
                     tetrahedra=model.container.tetrahedra.linkpath)
     model.addObject('BoxROI', name='boxROISubTopo', box=[-175, 22.5, -8, -19, 28, 8], drawBoxes=False,
                     position="@tetras.rest_position", tetrahedra=model.container.tetrahedra.linkpath)
-    model.addObject('RestShapeSpringsForceField', points=model.boxROI.indices.linkpath, stiffness=1e12)
+    model.addObject('FixedWeakConstraint', indices=model.boxROI.indices.linkpath, stiffness=1e12)
     model.addObject('LinearSolverConstraintCorrection')
 
     ##########################################
diff --git a/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureActuator.py b/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureActuator.py
index bbcde64..a946531 100644
--- a/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureActuator.py
+++ b/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureActuator.py
@@ -31,7 +31,7 @@ def createScene(rootNode):
     bunny.addObject('UniformMass', totalMass=0.5)
     bunny.addObject('TetrahedronFEMForceField', template='Vec3', poissonRatio=0.3, youngModulus=18000)
     bunny.addObject('BoxROI', name='boxROI', box=[-5, -6, -5, 5, -4.5, 5], drawBoxes=True)
-    bunny.addObject('RestShapeSpringsForceField', points=bunny.boxROI.indices.linkpath, stiffness=1e12)
+    bunny.addObject('FixedWeakConstraint', indices=bunny.boxROI.indices.linkpath, stiffness=1e12)
     bunny.addObject('LinearSolverConstraintCorrection')
 
     # bunny/effector
diff --git a/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureAndCableActuator.py b/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureAndCableActuator.py
index 9dab45b..259a10c 100644
--- a/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureAndCableActuator.py
+++ b/examples/sofapython3/component/constraint/SurfacePressureActuator/SurfacePressureAndCableActuator.py
@@ -31,7 +31,7 @@ def createScene(rootNode):
     bunny.addObject('UniformMass', totalMass=0.5)
     bunny.addObject('TetrahedronFEMForceField', template='Vec3', poissonRatio=0.3, youngModulus=18000)
     bunny.addObject('BoxROI', name='boxROI', box=[-5, -6, -5, 5, -4.5, 5], drawBoxes=True)
-    bunny.addObject('RestShapeSpringsForceField', points=bunny.boxROI.indices.linkpath, stiffness=1e12)
+    bunny.addObject('FixedWeakConstraint', indices=bunny.boxROI.indices.linkpath, stiffness=1e12)
     bunny.addObject('LinearSolverConstraintCorrection')
 
     # bunny/effector
diff --git a/examples/sofapython3/component/constraint/SurfacePressureEquality/SurfacePressureEquality.py b/examples/sofapython3/component/constraint/SurfacePressureEquality/SurfacePressureEquality.py
index db9eba8..c602b4c 100644
--- a/examples/sofapython3/component/constraint/SurfacePressureEquality/SurfacePressureEquality.py
+++ b/examples/sofapython3/component/constraint/SurfacePressureEquality/SurfacePressureEquality.py
@@ -39,7 +39,7 @@ def createScene(rootNode):
     model.addObject('TetrahedronFEMForceField',
                     poissonRatio=Const.PoissonRation, youngModulus=Const.YoungsModulus)
     model.addObject('BoxROI', box=Const.FixedBoxCoords, drawBoxes=True)
-    model.addObject('RestShapeSpringsForceField', points=model.BoxROI.indices.linkpath, stiffness=1e12)
+    model.addObject('FixedWeakConstraint', indices=model.BoxROI.indices.linkpath, stiffness=1e12)
     model.addObject('LinearSolverConstraintCorrection')
 
     ##########################################
diff --git a/examples/sofapython3/component/constraint/VolumeEffector/VolumeEffector.py b/examples/sofapython3/component/constraint/VolumeEffector/VolumeEffector.py
index b579481..fa30261 100644
--- a/examples/sofapython3/component/constraint/VolumeEffector/VolumeEffector.py
+++ b/examples/sofapython3/component/constraint/VolumeEffector/VolumeEffector.py
@@ -23,7 +23,7 @@ def createScene(rootNode):
     bunny.addObject('UniformMass', totalMass=0.5)
     bunny.addObject('TetrahedronFEMForceField', poissonRatio=0.45, youngModulus=60000)
     bunny.addObject('BoxROI', name='boxROI', box=[-5, -5.5, -5, 5, -4.5, 5], drawBoxes=True)
-    bunny.addObject('RestShapeSpringsForceField', points=bunny.boxROI.indices.linkpath, stiffness=1e12)
+    bunny.addObject('FixedWeakConstraint', indices=bunny.boxROI.indices.linkpath, stiffness=1e12)
     bunny.addObject('LinearSolverConstraintCorrection')
 
     # bunny/effector
diff --git a/examples/sofapython3/component/constraint/YoungModulusActuator/YoungModulusActuator.py b/examples/sofapython3/component/constraint/YoungModulusActuator/YoungModulusActuator.py
index 7dc9b80..c8bfb74 100644
--- a/examples/sofapython3/component/constraint/YoungModulusActuator/YoungModulusActuator.py
+++ b/examples/sofapython3/component/constraint/YoungModulusActuator/YoungModulusActuator.py
@@ -36,7 +36,7 @@ def createScene(rootNode):
                                                        [-2, 2, -2, 1, 6, 1]], drawBoxes=True)
     bunny.addObject('ComplementaryROI', name="outROI", template="Vec3", position="@loader.position", nbSet=1,
                     setIndices1="@boxROIFixed.indices")
-    bunny.addObject('RestShapeSpringsForceField', points='@outROI.indices', stiffness=1e12)
+    bunny.addObject('FixedWeakConstraint', indices='@outROI.indices', stiffness=1e12)
     bunny.addObject('BoxROI', name='boxROI1', box=[-4.5, 2, -5, -2.5, 6, -1], drawBoxes=True)
     bunny.addObject('BoxROI', name='boxROI2', box=[-2, 2, -2, 1, 6, 1], drawBoxes=True)
     bunny.addObject('LinearSolverConstraintCorrection', linearSolver=bunny.SparseLDLSolver.getLinkPath())
diff --git a/tests/component/constraint/scenes/SurfacePressureConstraint.scn b/tests/component/constraint/scenes/SurfacePressureConstraint.scn
index 5dc048c..50dd0bc 100644
--- a/tests/component/constraint/scenes/SurfacePressureConstraint.scn
+++ b/tests/component/constraint/scenes/SurfacePressureConstraint.scn
@@ -24,7 +24,7 @@
                 <TetrahedronFEMForceField youngModulus="18000" poissonRatio='0.3' method='large'/>
 
                 <BoxROI name='ROI1' box='-5 -15 -5  5 -4.5 5' drawBoxes='true'/>                
-                <RestShapeSpringsForceField points='@ROI1.indices' stiffness='1e12'/>
+                <RestShapeSpringsForceField indices='@ROI1.indices' stiffness='1e12'/>
 
                 <LinearSolverConstraintCorrection/>
 
diff --git a/tests/component/solver/scenes/Finger.scn b/tests/component/solver/scenes/Finger.scn
index e4a20f4..f76220c 100644
--- a/tests/component/solver/scenes/Finger.scn
+++ b/tests/component/solver/scenes/Finger.scn
@@ -48,8 +48,8 @@
                         <BoxROI name='ROI1' box='-15 0 0 5 10 15' drawBoxes='true'/>
                         <BoxROI name='ROI2' box='-15 0 0 5 10 15' drawBoxes='true'/>
                 
-                        <RestShapeSpringsForceField points='@ROI1.indices' stiffness='1e12'/>
-                        <RestShapeSpringsForceField points='@ROI2.indices' stiffness='1e12'/>
+                        <RestShapeSpringsForceField indices='@ROI1.indices' stiffness='1e12'/>
+                        <RestShapeSpringsForceField indices='@ROI2.indices' stiffness='1e12'/>
 
                         <LinearSolverConstraintCorrection/>