Failure analysis of cast-on-strap in lead-acid battery subjected to vibration
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Failure analysis of cast-on-strap in lead-acid battery subjected to vibration
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| Creator |
Saravanan, M.
Ambalavanan, S. |
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| Subject |
Electrochemical Power Sources
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| Description |
Lead-acid batteries (LAB) are widely used in transportation sector for starting, lighting and
ignition application. The possibility of vibration mode of failure occurs in this application
due to wear and tear of the road. These vibration causes fatigue failure, particularly
between the cast on strap and pillar post leading to loss of electrical connection. In this
paper vibration test is conducted on a 12 V/75 Ah AGM Valve Regulated Lead-Acid Battery
(VRLAB) used for above mentioned application in India. The test is carried out using Electrodynamic
Vibration System model SD-10-240/GT500M/DA-10. The shaker is performed
with a sinusoidal excitation, with an acceleration of 2.143G and a fixed frequency of
16.7 Hz. The peak to peak displacement is 4 mm. The deformation and crack propagation
features on the surface and cross sectional area of pillar post and strap in both positive
and negative group are observed with Scanning Electron Microscope (SEM). The material
is yielded due to improper fusion between pillar post and strap which could not stand
the vibration force. During vibration this region is vulnerable for fatigue failure.
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| Publisher |
Elsevier
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| Date |
2011
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/2998/1/2012-011-ambal.pdf
Saravanan, M. and Ambalavanan, S. (2011) Failure analysis of cast-on-strap in lead-acid battery subjected to vibration. Engineering Failure Analysis (18). pp. 2240-2249. ISSN 1350-6307 |
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| Relation |
http://dx.doi.org/10.1016/j.engfailanal.2011.07.019
http://cecri.csircentral.net/2998/ |
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