diff --git a/src/pylife/materiallaws/notch_approximation_law_base.py b/src/pylife/materiallaws/notch_approximation_law_base.py
deleted file mode 100644
index c7f35054..00000000
--- a/src/pylife/materiallaws/notch_approximation_law_base.py
+++ /dev/null
@@ -1,77 +0,0 @@
-# Copyright (c) 2019-2023 - for information on the respective copyright owner
-# see the NOTICE file and/or the repository
-# https://github.com/boschresearch/pylife
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-__author__ = ["Benjamin Maier"]
-__maintainer__ = __author__
-
-import pylife.materiallaws.rambgood
-
-class NotchApproximationLawBase:
-    """This is a base class for any notch approximation law, e.g., the extended Neuber and the Seeger-Beste laws.
-
-    It initializes the internal variables used by the derived classes and provides getters and setters.
-    """
-
-    def __init__(self, E, K, n, K_p=None):
-        self._E = E
-        self._K = K
-        self._n = n
-        self._K_p = K_p
-
-        self._ramberg_osgood_relation = pylife.materiallaws.rambgood.RambergOsgood(E, K, n)
-
-    @property
-    def E(self):
-        '''Get Young's Modulus'''
-        return self._E
-
-    @property
-    def K(self):
-        '''Get the strength coefficient'''
-        return self._K
-
-    @property
-    def n(self):
-        '''Get the strain hardening coefficient'''
-        return self._n
-
-    @property
-    def K_p(self):
-        '''Get the shape factor (de: Traglastformzahl)'''
-        return self._K_p
-
-    @property
-    def ramberg_osgood_relation(self):
-        '''Get the ramberg osgood relation object
-        '''
-        return self._ramberg_osgood_relation
-
-    @K_p.setter
-    def K_p(self, value):
-        """Set the shape factor value K_p  (de: Traglastformzahl)"""
-        self._K_p = value
-
-    @K.setter
-    def K_prime(self, value):
-        """Set the strain hardening coefficient"""
-        self._K = value
-        self._ramberg_osgood_relation = pylife.materiallaws.rambgood.RambergOsgood(self._E, self._K, self._n)
-
-    @K.setter
-    def K(self, value):
-        """Set the strain hardening coefficient"""
-        self.K_prime = value
-