Modelling Software
The finite element modelling for the project will be conducted using the FELASH (Finite ELement analysis of Axisymmetric SHells) software suite. The FELASH suite is specifically designed to provide an efficient, rapid analysis of axisymmetric shells; examples would be silos, tanks, cooling towers, pressure vessels or other similar structures.
The FELASH suite comprises of;
PASHA (Pre-processor for Axisymmetric SHells Analyses): a pre-processor programme used to generate the finite element mesh and set up the various loading conditions required. The PASHA programme utilises a cylindrical coordinate system, R, Z and θ to define the shell. The programme uses traditional classical axisymmetric shell theory to define the shell geometry. Thus displacements are defined in the sequence radial (R direction), axial (Z direction) and rotation about the θ axis.
LEASH (Linear Elastic analysis of Axisymmetric SHells): a finite element program that preforms a linear elastic analysis of the mesh generated by the PASHA programme. The programme employs doubly curved cubic isoparametric "ring" element which can be used to model cones, spheres, cylinders and other shapes. LEASH provides deformation and stress distributions under symmetric or non-symmetric loading.
Post processing and analysis of the results from the FELASH suite will be conducted using Microsoft Excel
The FELASH suite comprises of;
PASHA (Pre-processor for Axisymmetric SHells Analyses): a pre-processor programme used to generate the finite element mesh and set up the various loading conditions required. The PASHA programme utilises a cylindrical coordinate system, R, Z and θ to define the shell. The programme uses traditional classical axisymmetric shell theory to define the shell geometry. Thus displacements are defined in the sequence radial (R direction), axial (Z direction) and rotation about the θ axis.
LEASH (Linear Elastic analysis of Axisymmetric SHells): a finite element program that preforms a linear elastic analysis of the mesh generated by the PASHA programme. The programme employs doubly curved cubic isoparametric "ring" element which can be used to model cones, spheres, cylinders and other shapes. LEASH provides deformation and stress distributions under symmetric or non-symmetric loading.
Post processing and analysis of the results from the FELASH suite will be conducted using Microsoft Excel
