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Vol.25, Special Issue A, 2025, pp. S67–S74 |
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THERMAL SAFETY MEASURES FOR CREEP DEFORMATION OF PRESSURIZED SPHERICAL SHELL FABRICATED FROM ISOTROPIC MATERIAL Rekha Panchal1
1) Department of Mathematics, Jaypee Institute of Information Technology, Noida, INDIA R. Panchal https:/orcid.org/0009-0002-7698-845X ; 2) Department of Mathematics, Pandit Deendayal Energy University, Gandhinagar, India, INDIA M. Sahni https:/orcid.org/0000-0001-7949-9147 , *email: manojsahani117@gmail.com
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Abstract This study presents a closed-form analytical solution for the thick spherical shell's thermal creep stress components. The thick-walled spherical shell under consideration comprises functionally graded isotropic material loaded axisymmetrically. It is no longer necessary to assume creep-strain laws when using Seth's transition theory which is based on the concept of generalised strain measure. The obtained result demonstrates that stresses are significantly impacted by the non-homogeneity features of the FGMs structure. The research concludes that a highly functionally graded thick spherical shell is on the safer side of design. This is because of the reason that less non-homogeneous spherical shell is having high circumferential stress as compared to the highly non-homogeneous spherical shell. Keywords: creep, shell, thermal, functionally graded material, pressure |
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