Torsion bar

• Torsion bars are functions as a spring.

• One end is fixed firmly in place to the chassis or frame of a vehicle.

• Other end of the bar may be attached to the axle, suspension or spindle depending on the vehicle design.

Torsion bar (present demand)

• Lower weight- the designer seek to reduce

weight with every single opportunity.

• Safe design- without affect working nature.

Need of composite material

• High strength- weight ratio.

• Increasing availability due to advancements in

their manufacturing processes.

Selection of material

• Varieties of composite material available- one

with the basic requirements of the torsion bar

is needed.

• E glass fiber reinforced composite material

replacing steel torsion bar.

E glass fiber reinforced composite material

• Glass fiber with polymeric matrices- widely

used in various commercial products.

• Low cost, corrosion resistance, efficient

manufacturing potential.

• High elongation, moderate strength and

weight, corrosion resistance.

• Lower cost relative to other composites.

Composition of torsion bar made of E glass

fiber reinforced composite material

• Carbon

• Glass

• Aramid fiber

• Epoxy

• Polyester

• Resin bath.

Literature view

NO Topic Author year content

1. Cross Section

Deformation

Of Tubular

Composite Shaft

Subjected To Static

Loading Condition,

GU Bran,

Hasim,

2002 The Effect Of The

Resin Content On

The Wear Of

Woven Glass Fiber

Epoxy Resin And

Glass Fiber

Polyester Resin

Composite

Material.

Literature view

NO Topic Author year content

2. Influence Of

Presetting On Fatigue

Lifetime Of Torsion

Bars

Nenad

Gubeljak

2011 Torsion Bar Springs

Are Dynamically

Loaded Machine

Elements Which

Can Break Due To

Fatigue.

Literature view

NO Topic Author

year

content

3. Model For Fatigue

Lifetime Prediction

Of Torsion Bars

Subjected To Plastic

Presenting

Jozef,

predan

2011 The Torsion

Presenting Of A

Spring-bar Is A

Common Technique

For Extending The

Elastic Twist-angle

And Increasing

Torque, But It

Reduces Fatigue

Lifetime.

Literature view

NO Topic Author year content

4. Load Capacity And

Stiffness Of

Angular Cross

Section Reinforced

Concrete Beams

Under Torsion

M. Kami Ski.

W. Pawlak,

2011 The Theoretical

Analyses Of

Reinforced Concrete

Beams Loaded With

A Torsional Moment

And A Bending

Moment The Tests

Were Carried Out In

Two Series.

Literature view

No Topic Author Year Content

5. Strengthening Of RC

Beams Subjected To

Combined Torsion

And Bending With

GFRP Composites

V. Patelb, 2012 The Reinforced

Concrete Design

Depending On The

Load Transfer

Mechanism The Torsion

Is Classified As

Equilibrium Torsion

And Compatibility

Torsion,

Literature view

NO Topic Author year content

6 Vibration Based

Structure Detection

Technique Using

Particle Swarm

Optimization

Bharadwa

Nanda

2011 Simple And Robust

Methodology Is

Presented To

Determine The

Location And Amount

Of Crack In Beam

Like Structure Based

On The Incremental

Particle Swarm

Optimization

Technique

Literature viewNo Topic Author Year Content

7. Self Guided Particle

Swarm Optimization

With Independent

Dynamic Inertial

Weights Setting On

Each Particle

Jun Go 2012 It Combines The

Changes Of The

Evolution Speed Of

Each Particle With

The Status

Information Of

Current Swarm. Its

Core Idea Is To Set

The Inertial Weight

And Accelerator

Learning Factor

Dynamically.