{"product_id":"three-dimensional-analysis-of-a-composite-repair-and-the-effect-of-overply-shape-variation-on-structural-efficiency-9781249450207","title":"Three-Dimensional Analysis of a Composite Repair and the Effect of Overply Shape Variation on Structural Efficiency","description":"\u003cp\u003e • Author(s): David A. Sutter\u003cbr\u003e • Publisher: Biblioscholar\u003cbr\u003e • Publisher Imprint: Biblioscholar\u003cbr\u003e • BISAC: General\u003c\/p\u003e\u003cp\u003eThis research characterizes, in the elastic range, a scarf joint with overply using digital image correlation photogrammetry and finite element modeling. Additionally, the effect of varying the overply's geometric profile is examined. Specimens are constructed from AS4\/3501-6 prepreg with a [0\/ 45\/90]2S layup. A fixture is used to achieve a consistent scarfed hole in each panel. The patch and adhesive (FM 300) are co-cured to the panels using positive pressure, which minimizes repair porosity. Three variations in the overply geometry are used: circular, rooftop-end, and tooth-end. The full strain field in each uni-axially loaded specimen is captured using digital image correlation photogrammetry (ARAMIS). These results validate an ABAQUS 3-D finite element model of a scarf patch with circular overply. Good correlation is evident in the longitudinal strain; strain sensitivity limits correlation in the transverse and shear directions. The finite element model is used to identify peak out-of-plane stresses in the repair joint. Significant normal stresses occur at edge of the overply and at the inner scarf diameter. Finally, the experimentally-measured strains of the 3 overply variations are examined. Variation in strain magnitude is insignificant; the strain gradient at the overply edge, however, is significantly lower on the profile with the tooth-edge.\u003c\/p\u003e","brand":"Biblioscholar","offers":[{"title":"Paperback","offer_id":46863207235735,"sku":"9781249450207","price":4922.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781249450207.webp?v=1769969354","url":"https:\/\/atlanticbooks.com\/products\/three-dimensional-analysis-of-a-composite-repair-and-the-effect-of-overply-shape-variation-on-structural-efficiency-9781249450207","provider":"Atlantic Books","version":"1.0","type":"link"}