FATIGUE CRACK BEHAVIOR OF ADHESIVE JOINT By

ASHOK KUMAR.V (211411114303)DINESH.S (211411114309)

VANKATESH PRABU.J.S (211411114320)VIJAY VAITHYALINGAM (211411114323)

UNDER THE GUIDANCE OF

Mr. M.D.MOHAN GIFT. M.E.,(Ph.D.) ASSOCIATE PROFESSOR 1

PANIMALAR ENGINEERING COLLEGE

DEPARTMENT OF MECHANICAL ENGINEERING

BATCH NO-18

INTRODUCTION

• An adhesive is an substance applied to the surfaces of

materials that binds them together and resists separation.

• Adhesives may be found naturally or produced synthetically

• The Greeks and Romans made great contributions to the

development of adhesives.

• After 1900s adhesive use has been gradually increased and

innovations has been made in adhesives .

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• The mechanism of adhesion helps to reduce stress

concentration found in bolted, riveted and welded joints.

• Adhesive joints is a subject of great interest indifferent fields

like aerospace, biomedical, automotive etc.,

• Because of the advantages they provide with respect to the

traditional joining techniques,such as more uniform load

distribution,less sources of stress concentration, weight

reduction and flexibility in design.

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• The presence of a crack in an adhesive bond can reduce the life

of a joint or structure.

• To avoid the crack formation in adhesive joint, the strength of

the adhesive bond can be calculated by using double cantilever

beam(DCB) test in experimental and analysis method .

• The DCB test is conducted on aluminium specimen structural

joints, adhesive has been applied in between the specimen and

the tensile load has been applied on the specimen to find out

the crack behaviour of adhesive joints.

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LITERARTURE SURVEY:• One of the main advantage is there is no heat required to make

a joint.

• Weight of the joint is negligible when compared to other

methods of joining.

• Adhesive joints are resistant to corrosion and cost of the joint

is very low.

• According to researchers materials with similar and disimilar

joints can be made very easily with out any heat addition.

• Long term use of the joint causes the changes in properties of

the adhesive joint.5

METHODALOGY• SPECIMEN PREPARATION:

Aluminum specimen of 200x40x20mm have to be cut

from billets and machining has been done to improve their

surface finish.

• APPLYING ADHESIVE:

Adhesive has been applied in between the aluminium

specimen to make them as structural joint.

• APPLYING LOADS:

One end of the specimen is fixed and the tensile load has

been applied on the specimens.6

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TEST BY EXPRINENTALY

TESTING BY ANSYS

COMPARISON

RESULT

REFERENCES

• A.J. Kinloch , “Adhesion and Adhesives,” Science and

Technology, Chap. & Hall, London 1986

• ASTM D5528. (1994). Standard test method for Mode I

interlaminar fracture toughness of unidirectional fiber

reinforced polymer matrix composites

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THANK YOU

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