Indentation-Flexure and Low-Velocity Impact Damage in Graphite Epoxy Laminates
نویسندگان
چکیده
منابع مشابه
Modelling low velocity impact induced damage in composite laminates
The paper presents recent progress on modelling low velocity impact induced damage in fibre reinforced composite laminates. It is important to understand the mechanisms of barely visible impact damage (BVID) and how it affects structural performance. To reduce labour intensive testing, the development of finite element (FE) techniques for simulating impact damage becomes essential and recent ef...
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In this paper, a finite element model is presented for the transient analysis of low velocity impact, and the impact induced damage in the composite plate subjected to low velocity impact is studied. The failure criteria suggested by Choi and Chang and the Tsai-Hill failure criteria are used for the prediction of the damage in the composite plate; then the effect of various parameters on the im...
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Acoustic emission and transient IR thermography have been used to study and compare the performance of carbon/epoxy laminates, subjected to two different indentation procedures in a three-point flexural rig, one with a supporting steel plate and the other in a free bending mode. The study of 2-D localisation plots and cumulative counts vs. time curves allowed clarifying, with the essential supp...
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Static indentation tests on carbon fibre reinforced laminates have been frequently used in literature to predict the value of penetration energy for the laminate. The mechanical set-up most commonly employed involves the use of indentors of diameter comparable with that of the impactors prescribed from standards for falling weight impact, such as ASTM D3763.The specimen is simply supported usin...
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An analytical and experimental study is conducted to determine criticality of interlaminar disbands by NDE methods. Criticality of such flaws in a shear environment (action of shear near support) is defined in terms of crack propagation and is analyzed by principles and methods of fracture mechanics. Growth of disbands under cyclic loading is also being studied. Fajlure under compressive loadin...
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ژورنال
عنوان ژورنال: Journal of Composites Technology and Research
سال: 1993
ISSN: 0884-6804
DOI: 10.1520/ctr10361j