material test_material [
	 name = mat_1
	 rho = 1   # density
	 E   = 1 # young's modulus
	 nu  = 0    # poisson's ratio
]

material test_material [
	 name = mat_2
	 rho = 1   # density
	 E   = 1 # young's modulus
	 nu  = 0    # poisson's ratio
]

non_local test_region remove_wf [
	  radius = 0.5		  
	  weight_function weight_parameter [
	  update_rate = 1 
	  damage_limit = 0.9
	  ]	  
]