Crack-Tip Stress Analysis at a Bi-Material Interface by Photoelastic, Isopachic and FEA
نویسندگان
چکیده
منابع مشابه
Stress Analysis at a Bi-Material Interface Crack-tip
The optical methods of Caustics, Photoelasticity and Isopachics for the evaluation of the stress intensity factors and the distribution of the principal stresses at a bi-material interface crack-tip, were proposed. The caustics, isochromatic and isopachic fringes are developed from the stress field which results from a stress function X(r, ). When the crack-tip, which is perpendicular to interf...
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Assuming that a material point becomes unstable when the eective plastic strain there reaches a critical value, it is found that a material instability will initiate at a point on the crack-tip of an impulsively loaded prenotched plate that makes an angle of )14° to the notch-tip. This agrees well with the observed values of )5° to )15°. Ó 1998 Elsevier Science Ltd. All rights reserved.
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ژورنال
عنوان ژورنال: Materials Sciences and Applications
سال: 2011
ISSN: 2153-117X,2153-1188
DOI: 10.4236/msa.2011.28139