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Stresses around pin-loaded hole in composite laminates using direct boundary element method |
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| Institution: | 2. Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Roskilde, Denmark;3. Department of Dermatology, Venereology, and Wound Healing Centre, Copenhagen University Hospital, Bispebjerg, Denmark;4. Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark;6. Department of Public Health, Environment, Occupation, and Health, Aarhus University, Aarhus, Denmark;11. Department of Respiratory Medicine, Copenhagen University Hospital – Hvidovre, Hvidovre, Denmark |
| Abstract: | This study is concerned with stresses around a pin-loaded hole in symmetrically stacked composite laminates of finite size using a two-dimensional direct boundary element method. Effects of friction and clearance between the pin and hole edge on the stresses are accounted for. Also geometric compatibility and force constraint between the pin and the plate are enforced. A new relation for geometric compatibility is proposed. Stress distributions and the contact angle with slip and no-slip regions around the pin-loaded hole corresponding to various parameters are investigated. Some interesting results are obtained. The present method is effective and simple to use which can be implemented with a personal computer. |
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