A study on finite element of pre damaged stress concentration factor for a composite laminate member with central circular

The study investigates the pre damaged stress concentration factor (SCF) for a composite laminate member (CLM) with central circular hole subjected to tensile loading. The presence of holes yields high stress concentrations in the structural members termed as stress raiser and often regarded as an i...

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Bibliographic Details
Published inJournal of mechanical science and technology Vol. 32; no. 8; pp. 3653 - 3658
Main Authors Ahmed, T., Choudhry, R. S., Shah, Atta Ur Rehman, Saeed, Hasan Aftab
Format Journal Article
LanguageEnglish
Published Seoul Korean Society of Mechanical Engineers 01.08.2018
Springer Nature B.V
대한기계학회
Subjects
Computer simulation
Control
Dynamical Systems
Engineering
Finite element method
Industrial and Production Engineering
Laminates
Mathematical analysis
Mathematical models
Mechanical Engineering
Orientation effects
Stress concentration
Stress distribution
Structural members
Vibration
기계공학
Stress raise
Composite laminate member
Pre damaged stress concentration factor
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Summary:The study investigates the pre damaged stress concentration factor (SCF) for a composite laminate member (CLM) with central circular hole subjected to tensile loading. The presence of holes yields high stress concentrations in the structural members termed as stress raiser and often regarded as an important design deriver. The pre damaged SCF refers to the stress concentrations within elastic (undamaged) range of the CLM prior to the failure initiation. The traditional experimental and analytical methods for the estimation of SCF offer macro level behaviour which is not considered appropriate for CLM where lamina by lamina behaviour is more significant. A meso level finite element (FE) model is presented to capture the lamina by lamina influence on the overall SCF for a CLM using commercial software Abaqus. The paper deals with the fundamental influencing factors such as laminae orientation effect, stress distribution effect around periphery of the hole, decaying effect and ligament effect on SCF for CLM. Analytical models have been formulated to validate the FE models. The results of FE models have been found in close agreement with the analytical results.
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ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-018-0717-4