Split casing including a compliant element

A machine comprising:

• a rotor supported for rotation about a rotational axis;
• an outer casing having an inner bore;
• an inner casing disposed within the inner bore and surrounding a portion of the rotor;
• a head member disposed within the inner bore and coupled to the inner casing to form a joint therebetween;
• a first joint interface formed as part of one of the inner casing and the head member, the first joint interface including a first joint face and a first groove that each extend around a portion of a circumference of the one of the inner casing and the head member;
• a second joint interface formed as part of the other of the inner casing and the head member, the second joint interface including a second joint face and a second groove that each extend around a portion of a circumference of the other of the inner casing and the head member;
• a compliant element formed as part of the second joint interface and positioned between the second joint face and the second groove, the compliant element arranged to allow movement of the one of the first joint interface and the second joint interface along the rotational axis in response to thermal expansion of the inner casing, and
• a clamp member having a first leg engageable with the first groove and a second leg engageable with the second groove.