Design and Impact Analysis of Go-kart Chassis

Design and Impact Analysis of Go-kart Chassis

Nitish Kumar Saini

Assistant Professor, Department of Mechanical Engineering,

Dev Bhoomi Institute of Technology, Dehradun

Uttarakhand, India.

Rohit Rana

U.G. Student, Dev Bhoomi Institute of Technology, Dehradun

Uttarakhand, India

Mohd. Nawaz Hassan


Uttarakhand, India

Kartik Goswami


Uttarakhand, India

Abstract

In present study chassis of Go-Kart is design and simulate for

different impact tests like front impact test, rear impact test and

side impact test for four materials. First chassis is designed in

CAD Software, simulate in ANSYS Workbench. This paper

represents the designing and failure criterion according to the

von-Mises stress for four different materials. The objective of

present investigation aims to get perfect material for the

designed chassis and enhance the value of factor of safety for

low ground clearance Go-Kart. For the safety point of view of

the driver present analysis is carried out for a range of force

values for all three impact tests. For present analysis reliability,

strength of material, ease to manufacture, energy absorption

ability and structural rigidity are main consideration.

Keywords: Front impact test, rear impact test, side impact test,

CAD, ANSYS Workbench, Von-Mises stress, factor of safety,

reliability, energy absorption ability, structural rigidity.

Introduction

A GO-KART is a 4- non-aligned wheel vehicles without

suspension that is mainly used in sports for racing purpose &

for recreation .GO-KART were invented in 1950 after war

period by airmen as a way to pass spare time. Arts ingles is

known as the father of karting. For motor racing, kart racing is

comparatively safe game for them. According to international

karting commission -Federation International Automobile

(CIK-FIA), GO-KART is a land vehicle with or without

bodywork with for non-aligned wheels in contact with the

ground, two which control the steering while the other two

transmit the power. The chassis of a GO-KART consists a body

frame made up of steel pipe that are welded together.

There are lot of sports available to people for their

entertainment & motor sports is one of them. Mostly to drives

bikes, cars and F-1 one must have professionalism into it .But

what if there would be a motor sport where there is no need to

have professionalism in driving i.e. GO-KART, which do not

need professional drivers & have low speed .The main focus is

on producing lower cost and light weight vehicle structure but

with better safety efficiency. Various parameters of GO- KART

can be altered in order to improve the competitiveness for other

motor racing.

There are different sub-parts of the designing of GO-KART

1. Chassis Department

2. Steering Department

3. Brakes and Tire Department

Out of these chassis department is the important one as the

chassis frame –provide the necessary support to the vehicle

component placed in it. Hence this frame should strong enough

in order to withstand sudden impacts all to make the GO-KART

more efficient in terms of its performance. In present

investigation four materials AISI 1018, AISI, 1026, AISI, 1020

and AISI 4130 are used in front, rear and side impact test.

Materials and Method

The design of chassis of GO- KART is designed in CAD

software with the help of finite element method deformation

and induced von-Mises stress is calculated for which ANSYS

Workbench is used.

Elastic properties of used materials are given in

following table and the design of chassis is given with complete

dimensions.

International Journal of Applied Engineering Research ISSN 0973-4562 Volume 14, Number 9, 2019 (Special Issue) © Research India Publications. http://www.ripublication.com

Page 46 of 52

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Table 1. Elastic Properties of Material

Property AISI

1018

AISI

1026

AISI

4130

AISI

1020

Young' Modulus (GPa) 200 200 210 205

Poisson's Ratio 0.29 0.3 0.3 0.29

Tensile Strength, Yield

(MPa) 370 415 435 297.74

Density (𝒌𝒈/𝒎 𝟑 ) 7850 7858 7850 7870

Fig.1. Design of Go-Kart Chassis with dimension

(All dimensions are in inches)

Fig.2. Design model of Go-Kart Chassis in CAD software

Fig.3. Meshed model of Go-Kart Chassis ANSYS Workbench

Design model of chassis is discretized in to 60904 nodes and

31180 elements.

Front Impact Test:

For front impact test, the mass of a vehicle with driver is

considered 200 kg and assumed that vehicle is countered with

the impact force at a speed of 60 km/hr for a second in the front

part of the chassis. The effect of applied impact load is analyzed

for a range in which the values of loads are taken 4g, 6g, 8g,

10g and 16g varies for safety point of view of driver. Factor of

safety is also calculated

𝐹. 𝑂. 𝑆. = 𝑌𝑖𝑒𝑙𝑑 𝑆𝑡𝑟𝑒𝑛𝑔𝑡ℎ

𝑉𝑜𝑛 − 𝑀𝑖𝑠𝑒𝑠 𝑠𝑡𝑟𝑒𝑠𝑠

It is also shown in result where the design is safe or fail.

Fig.4. Front Impact loading condition in ANSYS Workbench

Fig.5. Front Impact Von-Mises stress in ANSYS Workbench


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Fig.6. Front Impact maximum deflection in ANSYS

Workbench

Rear Impact Test:

For rear impact test, the mass of a vehicle with driver is


the impact force at a speed of 60 km/hr for a second in the rear


for a range in which the values of loads are taken 4g, 6g, 8g,

10g and 16g varies for safety point of view of driver. Factor of





Fig.7. Rear Impact Von-Mises stress in ANSYS Workbench

Fig.8. Rear Impact maximum deflection in ANSYS Workbench

Side Impact Test:

For side impact test, the mass of a vehicle with driver is


the impact force at a speed of 60 km/hr for a second in the side


for a 3g and 5g for safety point of view of driver. Factor of





Fig.9. Side Impact loading condition in ANSYS Workbench

Fig.10. Side Impact Von-Mises stress in ANSYS Workbench

Fig.11. Side Impact maximum deflection in ANSYS

Workbench

Results and Discussion

In next tables value of loads in different impact test with

induced Von-Mises stress, maximum deflection is given and

by the value of factor of safety , it is clear that whether the

design is safe or not, for safe design

𝐹. 𝑂. 𝑆. ≥ 1


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Table 2. Front Impact Analysis result for AISI 1018

Front Impact Test for AISI 1018

Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 208.88 0.73423 1.771352 Safe Design

6g 11772 313.3 1.1006 1.1809767 Safe Design

8g 15696 417.7 1.4675 0.8858032 Failure

10g 19620 522.1 1.8344 0.7086765 Failure

16g 31392 835.47 2.9355 0.4428645 Failure



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 208.63 0.7337 1.9891674 Safe Design

6g 11772 312.94 1.1006 1.3261328 Safe Design

8g 15696 417.25 1.4675 0.9946075 Failure

10g 19620 521.57 1.8344 0.7956746 Failure

16g 31392 834.5 2.935 0.4973038 Failure



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 208.6 0.69982 2.0853308 Safe Design

6g 11772 312.9 1.0483 1.3902205 Safe Design

8g 15696 417.25 1.397 1.0425404 Safe Design

10g 19620 521.57 1.747 0.8340204 Failure

16g 31392 834.51 2.7953 0.521264 Failure



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 208.87 0.71632 1.42548 Safe Design

6g 11772 313.3 1.0745 0.9503351 Failure

8g 15696 417.73 1.4326 0.712757 Failure

10g 19620 522.17 1.7908 0.5701974 Failure

16g 31392 835.47 2.8653 0.3563743 Failure


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Table 6. Rear Impact Analysis result for AISI 1018

Rear Impact Test for AISI 1018

Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 121.79 0.51431 3.0380163 Safe Design

6g 11772 182.68 0.77146 2.0253996 Safe Design

8g 15696 243.57 1.0286 1.5190705 Safe Design

10g 19620 304.446 1.285 1.2153223 Safe Design

16g 31392 487.4 2.057 0.7591301 Failure



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 121.28 0.51402 3.4218338 Safe Design

6g 11772 181.92 0.77102 2.2812225 Safe Design

8g 15696 242.56 1.028 1.7109169 Safe Design

10g 19620 303.2 1.285 1.3687335 Safe Design

16g 31392 485.12 2.056 0.8554584 Failure


Rear Impact Test for 4130

Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 121.28 0.4895 3.5867414 Safe Design

6g 11772 181.92 0.73431 2.3911609 Safe Design

8g 15696 242.56 0.97908 1.7933707 Safe Design

10g 19620 303.2 1.223 1.4346966 Safe Design

16g 31392 485.12 1.9582 0.8966854 Failure



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 121.79 0.50176 2.4446999 Safe Design

6g 11772 182.68 0.75265 1.6298445 Safe Design

8g 15696 243.57 1.0035 1.2224001 Safe Design

10g 19620 304.46 1.2544 0.9779281 Failure

16g 31392 487.14 2.007 0.6112001 Failure


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Table 10. Side Impact Analysis result for AISI 1018

Side Impact Test for AISI 1018

Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 111.18 0.5663 3.3279367 Safe Design

6g 11772 185.31 0.9438 1.9966543 Safe Design



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 111.12 0.56587 3.7347012 Safe Design

6g 11772 185.2 0.94312 2.2408207 Safe Design


Side Impact Test for 4130

Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 111.12 0.5389 3.9146868 Safe Design

6g 11772 185.2 0.8981 2.3488121 Safe Design



Load Criterion

Force

Applied

(Newton)

Von-Mises Stress

(MPa)

Total

Deformation

(mm)

F.O.S. Remark for

Design

4g 7848 111.18 0.50176 2.6779996 Safe Design

6g 11772 185.31 0.75265 1.6067131 Safe Design

Conclusion

1. It is cleared from the present investigation, no material

withstand with 10g, 16g loading criterion in front

impact test for a deigned chassis. AISI 4130 is more

efficient material as it gives safe result for 4g, 6g and 8g

loading criterion.

2. It is cleared from the present investigation, no material

withstand with 16g loading criterion in rear impact test

for a deigned chassis. AISI 4130 is more efficient

material as it gives more safe result for 4g, 6g, 8g and

10g loading criterion.

3. All materials are giving safe design for side impact test

but again AISI 4130 is more efficient material.

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Design and Impact Analysis of Go-kart Chassis