The response of plastics to stress when deformed by contact with hard objects under load is important in such diverse applications as bearings, guides, and phonograph records. A study of the permanent deformation of Plexiglas by spherical indentors under a wide range of load, indentor diameter, and time of loading has shown that a single relationship can be used to relate these and other variables. Preliminary sliding experiments at extremely low speeds (ca. 10/-5 cm/sec) indicate that the relationship derived for static indentations can be used to predict the permanent deformation to be expected in sliding under conditions of diverse loads and speeds. A particularly valuable application is that of predicting the deformation properties of proposed phonograph record systems by comparison with the known properties of existing systems.
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members and is free for AES members and E-Library subscribers.