Our projects

Parameteric optimization of dental implant fixed with bone

Parametric optimization of dental implant was done using Finite Element (FE) Analysis. A detailed FE mesh of implant components fixed inside soft and hard bone was prepared in Hypermesh software. Parameters such as implant length, diameter, pitch, lead, helix angle, and material properties were optimized using LS Dyna software with an objective to induce minimum tensile and maximum compressive stresses on the bone during clinical insertion.

Simulating the fracture scenario of a long tennis ball impacting a thin wall

This problem simulated a high velocity impact scenario of a hard ball impacting a thin glass sheet. Fracture point, fracture time, fracture load and stress distribution were computed.

Determining stresses induced on a metallic bench

Stress distribution, maximum load carrying capacity and fatigue life of the bench was determined using ABAQUS and Hypermesh

Simulating crushing of a tank

The crushing effect of a cuboidal tank was computed using FEA in LS Dyna software. Maximum bearable load, time dependent stress/strain distribution and the weak locations of the product were highlighted. Accordingly, design corrections were suggested.

Determining the capacity of ship armour chain element

Two elements connected with a knuckle joint was simulated to determine maximum relative displacement, stress and strain distribution at high load. Fatigue life of the assembly was also computed in LS Dyna and Hypermesh.

Determining fracture limit of a specific material

A specimen(with a given material) was fixed at one end, while the other end was given a constant displacement with an objective to determine the fracture limit of the specimen under tensile loading condition. Fracture load, fracture time, and time-dependent stress distribution were computed.

Determining fatigue life of spoon

Determining fatigue life and maximum load capacity is crucial for different components of design. Most components fail before it's actual life due to internal cracks developed at and/or within it's surface. This usually happens when a component gets exposed to cyclic loading for a prolonged time. We simulated such a phenomenon for several components; however showcasing for a basic spoon design. This simulation will help you identify the life of components under cyclic loading. Similarly, identifying maximum static/dynamic load carrying capacity is crucial beyond which certain part of the component will fracture. Such analysis has been carried out on the spoon model as well.

Computing woven bone growth in response to heavy loading at rat tibial bone

This research problem intend to computationally determine woven bone formation in response to dynamic loading conditions. Finite Element simulations were done to compute stimuli (fluid flow, intracellular flow of ions, strain, stresses, strain energy density and others). Each stimuli were calibrated with new bone growth at tissue and cellular levels. The computational results were very close to experimental results.

Simulating clinical procedure of femoral head fixation using cannulated screw

Femoral bone of aged female was developed using CBCT scan and medical image segmentation. A fracture was created at the femoral neck. The fracture was fixed using three cannulated screws. Stress distribution at all components and the maximum load carrying capacity was determined using Ansys and Hypermesh.

Occupant Modeling, Tank Design, and Seatbelt Design

This project intend to compute injury analysis at different body parts of a human dummy. A military tank was design per client’s requirement and a dummy was positioned with seat belt at passenger or driver seat.

Driver seat arrangement

Passenger seat arrangement

Simulating landmine blast effect beneath the front tire

In this simulation, a prescribed mass of TNT was triggered beneath the driver seat and injury analysis at dummy was conducted at different body parts (head, chest, neck, thorax, femur, tibia and others). The computed values of injury were compared with the threshold values and predictions were done about the physical wellbeing of the soldier when exposed to such unfortunate situation.

Simulating landmine blast effect beneath the hull

In this project, injury analysis at different body parts of a human dummy was computed when placed at the passenger seat and exposed to blast beneath the hull of the tank. Two different conditions were simulated (a) without seatbelt and (b) with seatbelt. Injury analysis was computed at different body parts (head, chest, neck, thorax, femur, tibia and others). The computed values of injury were compared with the threshold values and predictions were done about the physical wellbeing of the soldier when exposed to such unfortunate situation.

Computing load bearing capacity of hip implant in osteoporotic bone

A FE model of an old female right pelvic bone was developed from CT scan data, Mimics, 3- Matic and Hypermesh software. An implant (acetabular cup) and the femoral head have been adjusted in the acetabular cavity. Twenty-one muscle patches and two bone joints have been determined to apply muscle load and boundary conditions. Physiological walking gait cycle was applied, and stress and strain distribution has been computed. This work has been extended to investigate the stability of artificial bone granules (bone allografts) used to fill in bone defects during revision hip surgery.

Simulating clinical procedure of femoral head fixation using cannulated screw

Femoral bone of aged female was developed using CBCT scan and medical image segmentation. A fracture was created at the femoral neck. The fracture was fixed using three cannulated screws. Stress distribution at all components and the maximum load carrying capacity was determined using Ansys and Hypermesh.

Simulating TNT blast effect beneath soil and air domain

Advanced techniques such as Smooth Particle Hydrodynamics, Fluid Structure Interaction and Arbitrary Lagrangian Eulerian were employed using LS Dyna software to simulate blast effect beneath the soil and air domain.

More Exciting Things On The Way

There are several major FEA projects conducted by IITians Simulab; however, not showcased due to data privacy policies of the company.

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