Large Deformation Analysis Of A Rubber Sheet With Holes

Hence a square is topologically equivalent to a circle.

Large deformation analysis of a rubber sheet with holes.

You can use a large displacement solution. This takes more time and resources than the small displacement solution but gives more accurate results. The large displacement solution is required when the acquired deformation alters the stiffness the ability of the structure to resist loads significantly. Its fidelity for predicting large deformation is established by comparison with those of finite element analysis of a rubber sheet with a hole under stretch.

Deformation behavior of rubber blocks and empirical relation was derived based on the assumption that the deformed cylinder has a parabolic profile under small strains. As shown in fig. Also its validity for predicting damage is demonstrated through simulations of experiments concerning progressive damage growth and final rupture in polymers undergoing large elastic. Topology studies properties of spaces that are invariant under any continuous deformation.

It is sometimes called rubber sheet geometry because the objects can be stretched and contracted like rubber but cannot be broken. In this study a yield criterion is discussed for the perforated sheet with uniform circular holes by employing an equivalent continuum approach which is then applied to examine the plastic deformation of the perforated sheet with non uniform circular holes. Deformation analysis of silicone rubber sheet subjected to keen wc blade indentation article in international journal of automation technology 8 5 761 772 september 2014 with 32 reads. The tensile displacement is applied on the top boundary in the vertical direction in increments of 0.

But on a rubber sheet that is deformed by a small amount this relation turns out to be reversed t 3 is proportional to r 2. And this changes as the deformation becomes larger. 25 mm until the onset of damage. The analysis of the stress and strain in the perforated material is based on treating the perforated material as an equivalent solid material 1 2.

For example a square can be deformed into a circle without breaking it but a figure 8 cannot. Quire the characterisation of the deformation behaviour of a perforated sheet containing a large number of holes. 10 the rubber sheets have two edge notches of length of a 12 16 20 24 28 mm and the notch radius is 1 mm the boundary conditions are the same as those of previous configuration with a hole.