Degradable plug for a downhole tubular

An apparatus and related method of assembling a degradable plug adapted to selectively permit fluid communication through a flow path of a downhole tubular. In an exemplary embodiment, the method includes providing a housing defining an internal flow passage and one or more internal annular grooves adjoining the internal flow passage; positioning a generally cylindrical core within the internal flow passage; applying a first axially compressive force against the core so that respective exterior portions of the core expand or flow into the one or more internal annular grooves of the housing and the housing elastically deforms in a radially outward direction; and removing the first axially compressive force from the core so that the housing recoils in a radially inward direction, which is opposite the radially outward direction, thus placing a first stress on the core.