diff --git a/cosserat-continuum.parset b/cosserat-continuum.parset
index 49e81394c4df518d401e1b960f44ac45941a2eff..3e696e371d0924aac41529d05b185d8dccc37175 100644
--- a/cosserat-continuum.parset
+++ b/cosserat-continuum.parset
@@ -5,7 +5,7 @@ numLevels = 1
 tolerance = 1e-12
 
 # Max number of steps of the trust region solver
-maxTrustRegionSteps = 5
+maxTrustRegionSteps = 20
 
 # Initial trust-region radius
 initialTrustRegionRadius = 1
@@ -38,6 +38,26 @@ instrumented = 0
 #   Problem specifications
 ############################
 
+[materialParameters]
+
+# shell thickness
+thickness = 0.05
+
+# Lame parameters
+mu = 1
+lambda = 1
+
+# Cosserat couple modulus
+mu_c = 0
+
+# Length scale parameter
+L_c = 1
+
+# Curvature exponent
+q = 2.5
+
+[]
+
 # 2d problem
 #path = /home/haile/sander/data/richards/twosquares/
 #gridFile = twosquares0.grid