|About this Abstract
|Materials Science & Technology 2020
|2020 Undergraduate Student Poster Contest
|Effect of Aspect Ratio on Stress Intensity Factor Solutions for Single Edge Notch Wire Fracture Test Specimen under Tensile and Clamped Bend Loading Conditions
|Hrushikesh Sahasrabuddhe, Ashwini Kumar Mishra, Nagamani Jaya Balila
|On-Site Speaker (Planned)
Finite element analysis has been employed to evaluate the stress intensity factors ahead of a straight fronted surface crack in a cylindrical rod specimen in tension & clamped bend loading. Closed form 3-dimensional as well as 2-dimensional stress intensity factor solutions have been derived in terms of the relative crack depth, wire aspect ratio as alternatives to existing solutions. Our study establishes the strong influence of wire aspect ratio on the geometric factor which were ignored in the studies carried out earlier. Experimental validation of the geometric factor solutions is obtained by testing them against a brittle linear elastic polymeric material - PMMA, with a known mode 1 notch toughness (K1Q). The results are explained in terms of the stress state ahead of such an asymmetric notch and the boundary conditions that result out of the loading constraints under tension and clamped bending.