Determination Of Dynamic Stress Intensity Factors Of A Glassy Polymer Using A Shadow-Optical Method

Kiyoshi Takahashi; W. Doll

doi:10.1117/12.957575

27 July 1979 Determination Of Dynamic Stress Intensity Factors Of A Glassy Polymer Using A Shadow-Optical Method

Kiyoshi Takahashi, W. Doll

Proceedings Volume 0189, 13th Intl Congress on High Speed Photography and Photonics; (1979) https://doi.org/10.1117/12.957575
Event: 13th International Congress on High Speed Photography and Photonics, 1978, Tokyo, Japan

Abstract

In the present work dynamic and static mode I stress intensity factors KI of Polymethylmethacrylate were determined using a shadow-optical method in transmission. The shadow patterns under dynamic loading and during dynamic crack propagation were recorded by a high speed Cranz-Schardin spark camera. The dynamically loaded Charpy test specimens showed nonlinear oscillatory behaviour which was attributed to coupled vibrations between specimen and hammer. The values of the dynamic fracture toughness Kdyn were found to be about twice that of the static fracture toughness IcKIc stat.

Citation Download Citation

Kiyoshi Takahashi and W. Doll "Determination Of Dynamic Stress Intensity Factors Of A Glassy Polymer Using A Shadow-Optical Method", Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); https://doi.org/10.1117/12.957575

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available