In this problem, we will try to show how to analyze the local-global fields in composite structures using SwiftComp-Abaqus-GUI. [[BR]] The figure below can summarize how to do the local global analysis.[[BR]] [[Image(Problem-4A.jpg)]][[BR]] Let the material properties a fiber (T300) property be: : E,,11,,=230 GPA, E,,22,,=15 GPA, v,,12,,=0.20, v23=,,0.0714,,, G,,12,,=15GPa, G,,7,,=3.928GPa.[[BR]] and matrix (3501-6 epoxy) be: E =4.2GP, ν=0.34[[BR]] “Soden, P. D., Hinton M. J. and Kaddour, A. S., Lamina properties, lay-up configurations and loading conditions for a range of fibre reinforced composite laminates. Compos. Sci. Technol., 1998, 58(7), 1011”[[BR]] Major steps to perform local-global analysis[[BR]] '''Step 1: Input material properties'''[[BR]] There are two materials namely fiber and matrix [[BR]] a. Fiber properties[[BR]] b. Matrix properties[[BR]] [[Image(Problem-4mat.jpg)]][[BR]] [[Image(Problem-4mat2.jpg)]][[BR]] '''Step 2: Select appropriate SG''' [[BR]] a. Select 3D SG that represent the current example[[BR]] [[Image(Problem-2c.jpg)]][[BR]] b. 3D SG wizard shows up[[BR]] c. Select spherical inclusion as microstructure[[BR]] d. Add inclusion volume fraction[[BR]] e. Select material properties for inclusion and matrix[[BR]] f. Click on OK to generate the SG[[BR]] g. See generated 2D SG[[BR]] [[Image(Problem-4AA.jpg)]] [[Image(Problem-4bb.JPG)]][[BR]] '''Step 3- Homogenization- 3D effective properties''' [[BR]] a. Click on Homogenization [[BR]] [[Image(problem-1E.JPG)]] [[BR]] b. Homogenization wizard shows up ( see below) [[BR]] c. Select 3D (solid) Model[[BR]] d. Select analysis type, elastic[[BR]] e. Click on OK to start homogenization[[BR]] f. See the predicted 3D effective properties[[BR]] [[Image(problem-1H.JPG)]] [[Image(problem-4I.JPG)]][[BR]] '''Step 4: Export predicted effective properties to create a new model'''[[BR]] a. Export the predicted effective properties [[BR]] [[Image(Problem-4R.jpg)]][[BR]] b. A new model is automatically generated, this is to be used for generating a global model[[BR]] c. Predicted effective properties exported as engineering constants [[BR]] d. Predicted effective properties exported as stiffness matrix, D, [[BR]] [[Image(Problem-4M1.jpg)]] [[BR]] '''Step 5: Generate the global model'''[[BR]] a. Click on Part and give Part-1 as a name [[BR]] b. Select 'Shell' from from Shape and 'Planer' from type [[BR]] b. A new model is generated as shown ( 0.2m and thickness=0.15m) [[BR]] [[Image(Problem-4M2.jpg)]] [[BR]] [[Image(Problem-4M3.jpg)]] [[BR]] youtube link:[[BR]]